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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Get PDFA method for facile synthesis of nanostructured catalysts supported on carbon nanotubes with atomically dispersed cobalt and nitrogen dopant is presented herein. The novel strategy is based on a facile one-pot pyrolysis treatment of cobalt (II) acetylacetonate and nitrogen-rich organic precursors under Ar atmosphere at 800 °C, resulting in the formation of Co- and N- co-doped carbon nanotube with earthworm-like morphology. The obtained catalyst was found to have a high density of defect sites, as confirmed by Raman spectroscopy. Here, cobalt (II) nanoparticles were stabilized on the atomically dispersed cobalt- and nitrogen-doped carbon nanotubes. The catalyst was confirmed to be effective in the catalytic hydrolysis of ammonia borane, in which the turnover frequency was 5.87 mol H2·molCo-1 ·min-1, and the specific hydrogen generation rate was determined to be 2447 mL H2·gCo-1 ·min-1 . A synergistic function between the Co nanoparticle and the doped carbon nanotubes was proposed for the first time in the catalytic hydrolysis of ammonia borane reaction under a mild condition. The resulting hydrogen production with its high energy density and minimal refueling time could be suitable for future development as energy sources for mobile and stationary applications such as road trucks and forklifts in transport and logistics
Strength and Conditioning Practices and Perspectives of Volleyball Coaches and Players
Get PDFTo the authors’ knowledge this is the first study to describe the strength and conditioning (S&C) practices and perspectives of volleyball coaches and players. In total, 30 volleyball coaches (mean age 34.47 ± 7.83 years and coaching experience 19.57 ± 8.28 years), and 30 volleyball players (mean age 22.03 ± 4.43 years and playing experience 10.43 ± 8.98 years) completed an online survey with six sections: (a) informed consent; (b) background information; (c) education, qualifications, and prescription; (d) views on S&C; (e) exercise selection and preferences; and (f) issues and improvements. Frequency analysis was used to report responses to fixed-response questions and thematic-analysis for open-ended questions. While only one participant possessed an S&C certification, S&C was deemed ‘important’ to ‘very important’ for volleyball skills, physical fitness, and injury parameters. However, due to a reported lack of expertise, there appeared to be a theoretical understanding to practice gap. Furthermore, the implementation of S&C was considerably hindered by a lack of time, facilities, and equipment. National sports associations, coaches, and players can use the information within this study to provide an understanding of the current practices and perspectives of S&C in volleyball. While also promoting future developments in volleyball related S&C research and practice
Interview - Stories to Drive Change
Get PDFDomestic Data Streamers, a creative data firm founded by Barcelona native Pau Garcia, is driving changes in how people view and use data, both at home in Spain and abroad. Through interactive installations and exhibits, as well as innovative product designs, the studio is proving there\u27s more to data than precise mathematics and unchallenged objectivity
Native Son 本土之子
Get PDFAs chef and founder of Chile\u27s foremost restaurant, Boragó, Rodolfo Guzmán has inspired long-overdue appreciation for the country\u27s indigenous ingredients and traditional cooking techniques.
作為走在時代前沿的智利餐廳Boragó的總廚兼老闆，Rodolfo Guzmán以弘揚備受忽略的智利原生食材和傳統烹調技巧為己任
Artist Interview - Damien Gilley
Get PDFDamien Gilley is a multi-disciplinary artist from Portland, Oregon in the US. His work has been exhibited nationally and internationally at venues including Tetem Kunstruimte (Enschede, Netherlands), EastWestProject (Berlin, Germany), MARC (Kivik, Sweden), Las Vegas Art Museum (Las Vegas), The Belfry (New York), Wieden+Kennedy (Portland), and the Portland 2010 Biennial to name a few. His work has been reviewed by Artforum.com, The New York Times, designboom, The Oregonian, the Las Vegas Review Journal and the Austin Chronicle, among others
HKDI x IVE LWL: Emerging Design Talents 2018
Get PDFYoung Designers Push the Envelope in Exciting Extravaganza.
This year’s Emerging Design Talents, the annual graduation event organised by the Hong Kong Design Institute and IVE (Lee Wai Lee), was a huge success. The 11-day extravaganza was nothing less than spectacular — an all-in-one smorgasbord of exhibitions, catwalk shows including “New Fashion Force” and “Starry Night”, live music performances including “Music In Motion”, product showcases and film premieres including Dai Lung Fung. The main exhibition, titled “Change”, featured selected works of graduates from a host of design disciplines, including: Visual Arts and Culture, Advertising, Creative Media, Digital Music & Media, Film & Television, Publication & Print Media, Transmedia, Visual Communication, Fashion Branding & Buying, Architecture and Landscape, Furniture, Jewellery, Interiors and Exhibitions, Stage & Set design and Information Technology