1,681 research outputs found
Ternary Organic Solar Cells Based on Two Highly Efficient Polymer Donors with Enhanced Power Conversion Efficiency
No full textTernary structures are demonstrated as a promising approach to increase the efficiency and light harvesting of solar cells. A high power conversion efficiency of 10.2% is achieved for ternary organic solar cells with two efficient polymer donors. The improved performance is attributed to the synergistic effects of enhanced light absorption and charge transport, efficient energy transfer, improved charge generation and morphology.clos
Correction: pH and reduction-activated polymeric prodrug nanoparticles based on a 6-thioguanine-dialdehyde sodium alginate conjugate for enhanced intracellular drug release in leukemia
No full textCorrection for ‘pH and reduction-activated polymeric prodrug nanoparticles based on a 6-thioguanine-dialdehyde sodium alginate conjugate for enhanced intracellular drug release in leukemia’ by Yanming Wan et al., Polym. Chem., 2018, DOI: 10.1039/c8py00577j.</p
A Comprehensive Review of Mineral Carbonation of Civil Engineering Materials: A Bibliometric Analysis
No full textSupporting Information:
The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.est.5c03561.
• Method of bibliometric analysis, factors affecting the carbonation of steel slag, and literature sources of Figure 12b and CO2 storage capacity of different civil engineering materials (Sections S1–S3), this work’s differences and innovations relative to these studies, nomenclature, carbonation products in different systems, study of carbonated carbide slag, and reaction equation of carbonation of fly ash (Tables S1–S5), and research framework of bibliometric analysis and carbonation mechanism of CS (Figures S1 and S2) (PDF)
https://pubs.acs.org/doi/suppl/10.1021/acs.est.5c03561/suppl_file/es5c03561_si_001.pdf (408.06 kb)Mineral carbonation of civil engineering materials (MC-CEM) has received increased attention in reducing CO₂ emissions. This work comprehensively describes the research trends and hotspots in MC-CEM based on bibliometric analysis. Articles were collected in the Web of Science core database from 2001 to 2024 and analyzed in detail. The results show that MC-CEM is a hot research topic, with hot-topic words changing quickly. China and Switzerland reveal the most publications and the highest average citations, respectively. Under carbonation curing, the strength and durability are usually improved due to carbonate formation. Concerning CO₂ storage capacity, carbide slag, reactive magnesium oxide cement, and β-C₂S are active, while fly ash, mine tailings, and carbon mix are inactive. Slow kinetics and low carbonation influence the large-scale industrial application of MC-CEM. Finally, challenges and prospects in MC-CEM are illustrated. In future studies, it is necessary to enhance the CO₂ sequestration capacity by investigating the carbonation mechanisms and optimizing the process parameters. A comprehensive life-cycle assessment of MC-CEM is also needed. This work provides the basis for the development of large-scale mineral carbonation by using civil engineering materials.National Key Research and Development Program of China (2023YFE0121700), the National Natural Science Foundation of China (52378270, 52402036, and 52408302), the Zhejiang Provincial “Jianbing” and “Lingyan” R&D Programs (2024C04053), the “Innovation Yongjiang 2035” Key R&D Programme (2024Z087), and the China Postdoctoral Science Foundation (2025M773264)
Health risks of exposure to wildfire-toxic air: Air pollution impacts
No full textEvaluating the short-term exposure to wildfire-specific fine particulate matter (PM(2.5)) showed greater risks of hospitalization for all major respiratory diseases than non-wildfire PM(2.5). When developing air quality guidelines, it is also important to consider that PM(2.5) from varying sources can have different health effects, which require targeted health and environmental policy approaches.Yiwen Zhang, Rongbin Xu, Wenzhong Huang, Tingting Ye, Pei Yu, Wenhua Yu, Yao Wu, Yanming Liu, Zhengyu Yang, Bo Wen, Ke Ju, Jiangning Song, Michael J. Abramson, Amanda Johnson, Anthony Capon, Bin Jalaludin, Donna Green, Eric Lavigne, Fay H. Johnston, Geoffrey G. Morgan, Luke D. Knibbs, Ying Zhang, Guy Marks, Jane Heyworth, Julie Arblaster, Yue Leon Guo, Lidia Morawska, Micheline S. Z. S. Coelho, Paulo H. N. Saldiva, Patricia Matus, Peng Bi, Simon Hales, Wenbiao Hu, Dung Phung, Yuming Guo, Shanshan L
Інституційні та фінансові основи захисту споживачів банківських послуг
No full textScientific advisor: Galych Roman, PhD of law, associate professor, department banking business and financial technologiesObject of research is the protection of consumers of banking services. Subject of research is the institutional and financial foundations for consumer protection in the Ukrainian banking sector. Purpose of qualification master's work situational analysis and comparative methods - to study on the institutional and financial foundations of consumer protection in Ukrainian banks. In combination with banking supervision in Ukraine and the current management of banking institutions, consumer protection in the banking sector can be clarified by expanding research on basic concepts, theoretical systems, work status, case analysis, and propose measures of the current rights and interests of consumers in the banking sector. The problems that exist in building a protection system, as well as ways to manage financial innovations and improvement measures, as well as suggestions that are in the interests of the people to better protect legal rights. and interests of consumers. According to results of the research, theoretical and practical improvement measures and suggestions are proposed for the protection of consumers of banking services in Ukraine, which could help deal with financial innovation as well as in line with the interests of the public
Electrochemical and Spectroscopic Studies of Model Porphyrin, Hydroporphyrin Complexes for Nitrite Reductases
No full textA number of porphyrin and hydroporphyrin complexes (free bases, iron and nitrosyl complexes) have been studied by various electrochemical techniques, UV-visible, FT-Infrared, resonance Raman spectroscopies and spectroelectrochemistry. The complexes studied in this work are the models for siroheme and heme d1 in nitrite reductases. The work has been done on chemical and electrochemical generation and spectroscopic characterization of the reduction products of these model complexes, and elucidation of the reduction mechanisms of heme-bound nitrosyl to ammonia. The redox properties and axial coordination of porphyrin, chlorin, bacteriochlorin and isobacteriochlorin have been compared, and the difference in reduction mechanism for Fe(2,4-DMOEiBC)NO(model for siroheme) and Fe(2,4-dioxo-OEiBC)NO(model for heme d1) have been investigated. Experimental results showed that Fe(HP)NO(where HP = porphyrins and hydroporphyrins) reduced in three one-electron steps and the reduction products, Fe(HP)NO- and Fe(HP)NO2, were stable in THF. Addition of an electron to Fe(HP)NO lead to a strengthening of the Fe-N bond and a weakening of the N-O bond. Nitrosyl reduced to ammonia in the presence of weak acids via hydroxylamine. Isobacteriochlorin displayed an unique electroreduction behavior comparing with porphyrins, chlorins, and bacteriochlorins. The key factor that direct nitrite to different products (ammonia and nitrous oxide) is the basicity of the hydroporphyrin macrocycles
- …
