484 research outputs found

    KINERJA DIESEL GENERATOR DI KAPAL MT. ORIENTAL CHEMI

    No full text
    ABSTRAKSI Wardhana, Achmad Faisal Daffa, 2023, 551811236877 T, “Kinerja Diesel Generator di kapal MT Oriental Chemi”, Skripsi Program Studi Teknika Diploma IV, Politeknik Ilmu Pelayaran Semarang, Pembimbing I: Dr. Andy Wahyu Hermanto, M.T. Pembimbing II: Irma Shinta Dewi, M.Pd. Diesel generator merupakan kombinasi antara mesin diesel dan generator listrik yang dihubungkan pada satu poros. Mesin diesel merupakan mesin pembakaran dalam yang dapat merubah energi panas menjadi energi mekanik dengan cara pembakaran mesin itu sendiri.Dalam proses ini mesin diesel akan mengalami pengabutan dikarenakan pembakaran bahan bakar.Kestabilan generator dapat dipengaruhi oleh beberapa hal,yaitu beban,arus eksitasi, factor daya, jumlah putaran generator, dan lainnya.Tujuan penelitian ini adalah untuk mengkaji dan melihat kinerja generator. Metode penelitian yang digunakan pada skripsi ini adalah metode kualitatif. Sumber data penelitian diperoleh dari data primer dan data sekunder. Teknik pengumpulan data melalui observasi, studi pustaka, dokumentasi, dan wawancara selama penulis melaksanakan penelitian di kapal MT. Oriental Chemi Hasil Penelitian dalam penelitian ini adalah faktor yang menyebabkan menurunnya kinerja diesel generator di kapal MT. Oriental Chemi adalah plan maintenance system, keterbatasan sparepart, tersumbatnya filter strainer pada diesel generator, kerusakan ACB (air circuit breaker), ketidaksesuaian pembagian jam kerja antar mesin diesel generator, temperature tinggi pada kamar mesin. Dampak yang ditimbulkan dari menurunnya kinerja diesel generator di kapal MT. Oriental Chemi adalah terganggunya pengoperaisan diesel generator, tertundanya perbaikan dan perawatan mesin, terganggunya sistem bahan bakar, terganggunya sistem kelistrikan di kapal, terjadinya gangguan komponen pada sistem kerja mesin, terjadinya overheat pada mesin

    Analisis Kesalahan Berbahasa Dalam Buku Khotbah Jumat Karya Achmad Sunarto

    No full text
    Analysis of Language Errors in the Friday Sermon Book by Achmad Sunarto The author chooses language error analysis because every written work that has been read, especially the sermon book by Achmad Sunarto, still has language errors. The language errors contained in each book are very important to note. Each word has its own meaning and meaning, if the writing of each word has an error it will have a different meaning or meaning. Therefore, to find out language errors in the Friday Sermon Book, Setyawati uses the theory of language errors in the book so that she can find out language errors. The problems of this research are: (1) How are language errors at the morphological level including the omission of affixes in Achmad Sunarto's Friday Sermon Book, (2) How are language errors at the morphological level including sounds that should be melted not melted in Achmad Sunarto's Friday Sermon Book, (3) How do language errors at the morphological level include sound decay that should not be melted in Achmad Sunarto's Friday Sermon Book, (4) How do language errors at the morphological level include the use of inappropriate affixes in Achmad Sunarto's Friday Sermon Book. The purpose of this study is to describe, analyze, and interpret language errors in Achmad Sunarto's Friday Sermon Book. The data source of this research is the Friday sermon by Achmad Sunarto. The method that the author uses in this research is the method of content analysis and the approach used in this research is a qualitative approach. The technique used in this research is documentation technique and hermeneutic technique. The results of the study concluded that there were 25 language errors, namely: the omission of affixes contained 18 data, the sound that should have melted was not melted, there were 6 data, the yield of the sound that should not have melted there was 1 data, and the use of affixes was not appropriate. So it can be concluded that the Analysis of Language Errors in the Friday Sermon Book by Achmad Sunarto contains language errors at the morphological level and is dominated by language errors of omitting affixes

    PENJADWALAN PROYEK MENGGUNAKAN CRITICAL PATH METHOD (CPM) DENGAN KENDALA KETERBATASAN SUMBER DAYA MANUSIA DAN ALAT (Studi Kasus: Proyek Steam Boiler dan Central Boiler Oleh PT Swadaya Graha di Kota Kediri, Jawa Timur)

    No full text
    Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui Achmad Syaifuddin Arif1), Ceria Farela Mada Tantrika2), Ihwan Hamdala3Terima kasihÂ

    Pengaruh Religiusitas Dan Kesadaran Kesehatan Terhadap Minat Beli Konsumen Pada Makanan Cepat Saji Kentucky Fried Chicken (KFC) Di Pekanbaru

    No full text
    The purpose of this study was to determine and analyze whether the of religiosity and health awareness partially and simultaneously affect consumer buying interest in Kentucky Fried Chicken (KFC) fast food in Pekanbaru. The population in this study are consumers who buy at KFC Arifin Achmad Pekanbaru whose number cannot be ascertained. The sampling technique in this study used purposive sampling, which is based on the objectives and considerations of the researchers, which amounted to 100 respondents. Data collection techniques in this study using a questionnaire or questionnaire distributed to consumers. The data analysis technique in this study used descriptive analysis and used the SPSS 26 test. The results of this study indicate that religiosity and health awareness simultaneously and simultaneously influence consumer buying interest in purchasing Kentucky Fried Chicken (KFC) fast food in Pekanbaru

    Evaluasi Instalasi Pengolahan Air Limbah Rumah Sakit (Studi Kasus Rumah Sakit Umum Daerah Arifin Achmad Pekanbaru)

    No full text
    Environmental health of the hospital is very important, therefore it is necessary to strive for proper and appropriate management of waste so that it is disposed of in compliance with the quality standard requirements of hospital waste water. So the authors are interested in conducting research on evaluating wastewater treatment, in this case the WWTP at Arifin Achmad Hospital. The purpose of this study was to evaluate the effectivenness of wastewater treatment and quality standart. The parameters of wastewater studied were Temperature (Temperature), TSS (Total Suspended Solids), pH (Degree of Similarity), NH3 (Ammonia), COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand), and Coliform MPN. The research method used by the author in this study is descriptive method, namely by collecting data through interviews and field observations with the aim of getting an overview of wastewater treatment evaluation in Arifin Achmad Hospital which will then be analyzed. From the results of the study, it is known that the processing effectiveness at Arifin Achmad Pekanbaru Hospital has fulfilled the requirements in accordance with Kepmenkes 1204/Menkes/SK/X/2004 regulations, namely the process of managing wastewater using the Anaerobic -Aerobic Biofilter system and using rotating biological contactor (RBC). The measurement results of each waste parameter are in accordance with Minister of Environment Decree No.5 of 2014 concerning hospital waste water quality standards, namely the value of the temperature at the outlet (after processing), is 28,1 0 C, TSS at the outlet 10,0 mg/L, PH at the outlet 6,83 mg/L, Free NH3 at outlet 0,039 mg/L, COD at outlet 41,7mg/L, BOD at outlet 7.8 mg/L, and MPN Coliform at outlet 2.200 MPN. So at the WWTP Arifin Achmad, it is already the quality standart and is suitable for disposal to the nearest channer

    THE POTENTIAL OF DIGITIZING THE ISTISHNA CONTRACT DURING A PANDEMIC COVID-19 IN INDONESIA

    No full text
    The current istishna contract has experienced an event of digitization and adaptation to the buying and selling activities of the public, especially in Indonesia, namely by utilizing an online or network-based system. During the Covid-19 pandemic, it was not uncommon to find several businesses implementing the istishna contract as a manifestation of the digitization of buying and selling contracts. However, it is still not known for sure whether the istishna contract has the potential to be adequately implemented by the teachings of Islamic law or not, especially in the digitalization era, which adapts the istishna contract into an Islamic-based transaction activity that uses various information technology facilities. This research is qualitative research with the retrieval method of information utilizing a literature study. Thus, in finding conclusions on the problems discussed, the author uses a normative approach that examines the issue according to the views of norms, one of which is religious norms related to the permissibility and opportunities of digitizing the istishna contract in Indonesia. In addition, the author analyzes the impact of the pandemic on the economy, which is, of course, related to the potential for the istishna contract. This study aimed to determine the potential for digitizing the istishna contract, especially during the Covid-19 pandemic. From this research, the conclusion is that the istishna contract has the potential to be quite good in the community's economic activities during the Covid-19 pandemic, even though it is in the form of digitalization

    إستجابة القراء على قصيدة "لو كان بيننا الحبيب" لأحمد الشقيري بمنظور وولفغانغ إيسر

    No full text
    مستخلص البحث القراء في هذه الدراسة مهمون للغاية، خاصة بالنسبة للعمل الأدبي. تشرح هذه الدراسة كيف يستجيب الناس لعمل شخص ما. يمكن أيضا تسمية البحث الأدبي بدراسة العلوم الإنسانية. يجب أن يكمل البحث في النصوص الأدبية والأعمال الأدبية بعضها البعض. أحد المجالات التي تدرس الأعمال الأدبية هو الاستقبال الأدبي، والذي يفسر كيفية استجابة القراء للعمل الأدبي. قصيدة لو كان بيننا الحبيب هي واحدة من الأعمال الأدبية التي تجذب الانتباه. الغرض من هذا البحث هو وصف استقبال القارئ وتأثير القصيدة على بيئة معهد العالي وفقا للقارئ بمنظور وولفغانغ إيسر. يتضمن هذا البحث البحث الذي يستخدم الأساليب الوصفية النوعية. تقنيات جمع البيانات المستخدمة هي تقنيات المقابلة والملاحظة. من البيانات التي تم جمعها، يقوم الباحث بعد ذلك بالتحليل باستخدام التحليل الوصفي مع تحليل البيانات بما في ذلك تقنيات جمع البيانات والتحقق من صحة البيانات وتحليل البيانات. النتائج التيا تم الحصول عليها في هذه الدراسة هي: 1) استجابة القارئ في معهد العالي جامعة مولانا مالك إبراهيم لقصيدة "لو كان بيننا الحبيب" لأحمد الشقيري بمنظور وولفغانغ إيسر يحتوي على عناصر من 4 عناصر أدبية منها: عناصر المعنى، وأسلوب الأسلوب/اللغة، والخيال/ الذوق، والولاية/رسالة القصيدة وهو ما يفسر رغبة المؤلف في لقاء النبي محمد على الرغم من أنه يجب أن يكون صراعا بجعل هذه القصيدة. المؤلف يجعل هذه القصيدة باستخدام لغة جميلة وجيدة من كل كلمة في كل كلمة. 2) تأثير قصيدة لوكان بيننا الحبيب على بيئة معهد العالي بجامعة مولانا مالك إبراهيم مالانج وفقا للقراء الذين يستخدمون وجهة نظر وولفغانغ إيسر، بما في ذلك شعور القراء بالسعادة وأخذ زمام المبادرة لممارسة القيم في القصيدة مثل الصلاة للنبي محمد، وعقد تجمعات التقبل ودراسة أحاديث النبوية. ABSTRACT Readers in this study are very important, especially for a literary work. This study explains how people respond to someone's work. Literary research can also be called studying the humanities. Research on literary texts and literary works must complement each other. One field that examines literary works is literary reception, which explains how readers respond to a literary work. Qosidah laukana bainanal habib is one of the literary works that attracts attention. The purpose of this research is to describe the reader's reception and the influence of the qosidah on the Ma'had Al-Aly environment according to the reader in the perspective of Wolfgang Iser. This research includes field research that uses qualitative descriptive methods. The data collection techniques used are interview and documentation techniques. From the data that has been collected, the researcher then analyzes using descriptive analysis with data analysis including data collection techniques, data validation, and data analysis. The results obtained in this study are: 1) The reader's response at ma'had al-aly Maulana Malik Ibrahim University to the qosidah laukana bainanal habib by Ahmad Al-Shugairi according to Wolfgang Iser's perspective contains elements of 4 literary elements including: Elements of meaning, uslub / language style, imagination / taste, and mandate / message of the qosidah which explains the author's desire to meet the prophet Muhammad even though it must be a struggle by making this qosidah. The author makes this qosidah by using beautiful and good language from every word per word. 2) The influence of qosidah Laukana Bainanal Habib on the Ma'had al-aly environment of Maulana Malik Ibrahim University Malang according to readers using Wolgang Iser's perspective, including readers feeling happy and taking the initiative to practice the values in the qosidah such as praying to the prophet Muhammad, making taklim assemblies and studying the hadiths of the Prophet Muhammad. ABSTRAK Pembaca pada kajian ini sangat penting terutama untuk sebuah karya sastra. Pada penelitian ini menjelaskan tentang bagaimana tanggapan seseorang terhadap ciptaan karya seseorang. Penelitian sastra juga bisa juga disebut menelaah humaniora. Penelitian teks sastra dan sebuah karya sastra keduanya harus saling melengkapi. Salah satu bidang yang meneliti karya sastra yaitu resepsi sastra, yaitu bidang yang menjelaskan tentang bagaimana tanggapan pembaca terhadap suatu karya sastra. Qosidah laukana bainanal habib ini salah satu karya sastra yag menarik perhatian. Tujuan dari penelitian ini yaitu mendeskripsikan resepsi pembaca dan pengaruh qosidah tersebut pada lingkungan Ma’ad ali menurut pembaca dalam perspektif wolfgang iser. Penelitian ini menggunakan metode penelitian deskriptif kualitatif. Adapun Teknik pengumpulan data yang digunakan yaitu Teknik wawancara dan dokumentasi. Dari data-data yang sudah terkumpul, peneliti kemudian menganalisis menggunakan analisis deskriptif dengan data analisis diantaranya yaitu Teknik pengumpulan data, validasi data, dan analisis data. Adapun hasil yang diperoleh pada penelitian ini yaitu: 1) Tanggapan pembaca di ma’had al-aly Universitas Maulana Malik Ibrahim terhadap qosidah laukana bainanal habib karya Ahmad Al-Shugairi menurut perspektif Wolfgang Iser mengandung elemen 4 unsur sastra diantaranya: Unsur makna, uslub/gaya bahasa, imajinasi/rasa, dan amanat/pesan dari qosidah tersebut yang menjelaskan tentang sang pengarang yang berkeinginan untuk berjumpa dengan nabi Muhammad walaupun harus dengan perjuangan dengan membuat qosidah ini. Pengarang membuat qosidah ini dengan menggunakan bahasa yang indah dan bagus dari setiap kata per katanya. 2) Faktor - faktor apa saja yang mempengaruhi pada pembaca dalam qosidah Laukana Bainanal Habib terhadap lingkungan Ma’had al-aly Universitas Maulana Malik Ibrahim Malang menurut pembaca dengan menggunakan perspektif Wolgang Iser, diantaranya pembaca merasa senang dan berinisiatif mengamalkan nilai-nilai yang ada pada qosidah tersebut seperti bersholawat kepada nabi Muhammad, membuat majelis taklim dan mempelajari hadist-hadist Rasululla

    Transmisi Pemaknaan Al-Qur’an Dalam Sekar Sari Kidung Rahayu Karya Eyang Achmad Djuwahir Anomwidjaja

    No full text
    This research aims to describe Sekar Sari Kidung Rahayu and determine the transmission of science that occurs in this work. In this research the author used a qualitative descriptive research method. The results of this research are first, Sekar Sari Kidung Rahayu by Eyang Achmad Djuwahir Anomwidjaja is a tembang macapat which was composed as a form of response, appreciation and reception for the presence of the Qur'an in his cultural group. This work contains the meaning of the Qur’an , invitations and advice in studying the Qur’an . The completed work consists of Surah Al-Fatihah, An-Naba' -- An-Nas (Juz 'Amma), Yasiin, Al-Baqarah, Ali-Imron and pieces of verses from the Qur’an . Second, the transmission of science that occurs consists of three stages: 1) Eyang's awareness of his cultural group which perpetuates the macapat tradition alongside the existence of pesantren as centers of Islamic religious education. 2) Interest in the form of Eyang's idea to compose tembang macapat containing meaning from the Qur’an . 3) Adoption takes the form of Eyang's actions as a transmitter in implementing ideas in his work. The meaning of the Qur'an by Eyang Achmad Djuwahir was then transmitted to the general public in the form of books, audio-visual documentation in digital media and through the Macapat community which studied Sekar Sari Kidung Rahayu. Keywords : tembang macapat, reception of the Qur’an, transmission of science.Penelitian ini bertujuan untuk mendeskripsikan Sekar Sari Kidung Rahayu dan mengetahui proses transmisi pengetahuan yang terjadi pada karya tersebut. Dalam penelitian ini penulis menggunakan metode penelitian deskriptif kualitatif. Hasil penelitian ini adalah pertama, Sekar Sari Kidung Rahayu karya Eyang Achmad Djuwahir Anomwidjaja merupakan tembang macapat yang disusun sebagai bentuk respon, apresiasi sekaligus resepsi atas hadirnya Al-Qur’an pada kelompok budayanya. Karya tersebut berisi kandungan Al-Qur’an, ajakan dan nasihat dalam mempelajari Al-Qur’an. Karya yang sudah diselesaikan terdiri dari Surat Al-Fatihah, An-Naba’-An-Nas (Juz ”˜Amma), Yasiin, Al-Baqarah, Ali-Imron dan potongan ayat-ayat Al-Qur’an. Kedua, transmisi pengetahuan yang terjadi terdiri atas tiga tahapan: 1) Kesadaran (awareness) Eyang terhadap kelompok budayanya yang melanggengkan tradisi macapat berdampingan dengan keberadaan pesantren sebagai pusat pendidikan agama Islam. 2) Minat atau ketertarikan (interest) berupa gagasan Eyang untuk menyusun tembang macapat yang berisi kandungan ayat-ayat Al-Qur’an. 3) Adopsi (adoption) berupa tindakan Eyang sebagai transmitter dalam mengimplementasikan gagasan pada hasil karyanya. Pemaknaan Al-Qur’an oleh Eyang Achmad Djuwahir selanjutnya ditransmisikan ke khalayak ramai berupa buku, dokumentasi audio-visual dalam media digital serta melalui paguyuban macapat yang mengkaji Sekar Sari Kidung Rahayu. Kata kunci : tembang macapat, resepsi Al-Qur’an, transmisi pengetahuan

    Analisis Umur Kelelahan Sisa pada Struktur Jacket Platform Akibat Pengaruh Subsidence

    No full text
    Banyak anjungan minyak dan gas di perairan Indonesia, baik yang masih beroperasi maupun yang telah melewati batas umur operasi (expired) mengalami peristiwa subsidence, terutama pada struktur jacket platform. Subsidence di sekitar platform ini disebabkan oleh eksploitasi migas yang masif pada reservoir hidrokarbon yang sedang berproduksi. Fenomena ini menimbulkan risiko karena beban gelombang yang tidak dapat ditoleransi, di mana gelombang tersebut meningkatkan risiko kegagalan struktur, yang dapat berdampak pada operasional platform. Perubahan kondisi seabed akibat subsidence juga akan memengaruhi beban gelombang siklis yang diterima oleh struktur jacket platform. Pada Tugas Akhir ini, penulis akan menganalisis umur kelelahan sisa pada struktur jacket platform akibat subsidence. Penelitian Tugas Akhir ini bertujuan untuk menganalisis pengaruh subsidence terhadap umur kelelahan struktur jacket platform. Pengujian dilakukan dengan menggunakan metode cumulative damage dan fracture mechanics untuk memprediksi waktu kegagalan komponen yang ditinjau pada struktur jacket platform pada kondisi non-subsidence dan saat terjadinya subsidence. Hasil analisis menunjukkan bahwa umur kelelahan struktur akan berkurang ketika terjadi subsidence. Dengan metode cumulative damage, nilai umur kelelahan kondisi non-subsidence adalah 279 tahun, sedangkan umur lelah sisa struktur pada kondisi subsidence adalah 59 tahun. Sementara itu, dengan metode fracture mechanics, nilai umur kelelahan kondisi non-subsidence adalah 76 tahun, dan umur lelah sisa struktur pada kondisi subsidence yaitu 41 tahun. Hasil tersebut menunjukkan penurunan nilai umur kelelahan struktur yang cukup signifikan. ===================================================================================================================================== Many oil and gas platforms in Indonesian waters, both those still operating and those that have passed the operating life limit (expired), experience subsidence events, especially in the jacket platform structure. Subsidence around these platforms is caused by massive oil and gas exploitation in producing hydrocarbon reservoirs. This phenomenon poses a risk due to intolerable wave loads, where the waves increase the risk of structural failure, which can impact platform operations. Changes in seabed conditions due to subsidence will also affect the cyclical wave loads received by the platform jacket structure. In this Final Project, the author will analyze the residual fatigue life of the jacket platform structure due to subsidence. This Final Project research aims to analyze the effect of subsidence on the fatigue life of the jacket platform structure. Tests were carried out using cumulative damage and fracture mechanics methods to predict the failure time of the components reviewed in the jacket platform structure under non-subsidence conditions and when subsidence occurs. The analysis results show that the fatigue life of the structure will be reduced when subsidence occurs. With the cumulative damage method, the fatigue life value of the non-subsidence condition is 279 years, while the residual fatigue life of the structure in the subsidence condition is 59 years. Meanwhile, using the fracture mechanics method, the value of the fatigue life of the non-subsidence condition is 76 years, and the residual fatigue life of the structure in the subsidence condition is 41 years. These results show a significant decrease in the fatigue life of the structure

    Analisis Pengaruh Daya Microwave dan Metode Radiasi terhadap Struktur Material dan Performa Elektrokimia Katalis Pt/rGO-CB untuk Aplikasi PEMFC

    No full text
    Proton Exchange Membrane Fuel Cell (PEMFC) merupakan salah satu teknologi menjanjikan sebagai sumber energi bersih yang memiliki nilai efisiensi konversi energi yang baik. Meskipun sudah mampu menembus komersialisasi, masih terdapat banyak permasalahan terkait ketersediaan dan performa yang belum optimal. Performa dari PEMFC sendiri sangat dipengaruhi oleh laju kinetika reaksi di elektroda sehingga tren penelitian terkait elektokatalis untuk meningkatkan kinetika reaksi sekaligus kinerja PEMFC terus berjalan. Penelitian ini berfokus pada pengaruh daya microwave dan metode radiasi terhadap struktur material dan performa elektrokimia katalis Pt/rGO-CB untuk pengoptimalan pemanfaatan katalis Pt dengan penyangga hibrida berupa komposit reduced graphene oxide dan carbon black (rGO-CB) pada PEMFC. Sintesis katalis Pt/rGO-CB dilakukan dengan metode microwave irradiation dengan daya microwave yang diaplikasikan yakni 300 W, 450 W, dan 600 W serta variasi metode radiasi yang digunakan yakni continuous dan pulse. Proses sintesis katalis Pt/rGO-CB menunjukkan keberhasilan dalam proses reduksi nanopartikel Pt pada carbon support maupun proses reduksi Graphene Oxide (GO) menjadi Reduced Graphene Oxide (rGO) hal ini dibuktikan dengan keberadaan Pt (111) pada 2θ 39° di katalis Pt/rGO-CB hasil sintesis melalui hasil pengujian X-Ray Diffraction yang telah dilakukan. Sekaligus menghilangnya intesitas Graphene Oxide (GO) pada 2θ 11° dan keberadaan peak amorf C (002) pada 2θ 24°-26° dipengujian yang sama. Katalis Pt/rGO-CB dengan metode radiasi pulse pada variasi daya 300W menunjukkan performa paling menjanjikan dengan nilai Electrochemical Surface Area (ECSA) sebesar 49,7 m2/gpt dengan stabilitas yang baik pada pengujian Cyclic Voltammetry. Hasil positif ini juga direpresentasikan melalui hasil pengujian performa single cell dengan nilai power density maksimal sebesar 277,06 mW cm-2. ======================================================================================================================== Proton Exchange Membrane Fuel Cell (PEMFC) is one of the promising technologies as a clean energy source that has a good energy conversion efficiency value. Although it has been able to penetrate commercialization, there are still many problems related to availability and performance that are not optimal. The performance of PEMFC itself is strongly influenced by the rate of reaction kinetics at the electrode so that the research trend related to electocatalysts to improve reaction kinetics as well as PEMFC performance continues. This research focuses on the effect of microwave power and radiation method on the material structure and electrochemical performance of Pt/rGO-CB catalyst to optimize the utilization of Pt catalyst with hybrid buffer in the form of reduced graphene oxide and carbon black (rGO-CB) composite in PEMFC. The synthesis of Pt/rGO-CB catalyst was carried out by microwave irradiation method with the applied microwave power of 300 W, 450 W, and 600 W and the variation of radiation method used, namely continuous and pulse. The synthesis process of Pt/rGO-CB catalyst shows success in the process of reducing Pt nanoparticles on carbon support and the process of reducing Graphene Oxide (GO) to Reduced Graphene Oxide (rGO), this is evidenced by the presence of Pt (111) at 2θ 39° in the synthesized Pt/rGO-CB catalyst through the results of X-Ray Diffraction testing that has been carried out. As well as the disappearance of Graphene Oxide (GO) intensity at 2θ 11° and the presence of amorphous peak C (002) at 2θ 24°-26° in the same test. Pt/rGO-CB catalyst with pulse radiation method at 300W power variation showed the most promising performance with Electrochemical Surface Area (ECSA) value of 49.7 m2/gpt with good stability in Cyclic Voltammetry test. These positive results are also represented through the results of single cell performance testing with a maximum power density value of 277.06 mW cm-2
    corecore