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http://dx.doi.org/10.1016/j.jtcvs.2011.05.012 | DOI Listing |
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January 2025
Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea.
Herein, multi-walled carbon nanotubes (CNT) embedded with RuPdIrPtAu-high entropy alloys (HEA) via pulsed laser irradiation in liquids are successfully fabricated. The resultant composite synergistically enhances hydrazine oxidation reaction (HzOR)-boosted water electrolysis. Notably, HEA with ≈2-5 nm size, are uniformly distributed across the surface of the CNTs.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003 China. Electronic address:
Coupling the hydrogen evolution reaction (HER) with the urea oxidation reaction (UOR) represents a highly promising energy-saving strategy for hydrogen production. However, the development of cost-effective and high-performance bifunctional electrocatalysts remains a challenge. In this study, a NiSe/CoSe heterojunction was constructed via electrodeposition, leveraging interfacial synergy to significantly enhance catalytic performance.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Chinese Academy of Sciences Qingdao Industrial Energy Storage Technology Institute, Department of Energy Science and Energy Technology, Songling Road, 189, 266101, Qingdao City, CHINA.
Membrane-assisted direct seawater splitting (DSS) technologies are actively studied as a promising route to produce green hydrogen (H2), whereas the indispensable use of supporting electrolytes that help to extract water and provide electrochemically-accelerated reaction media results in a severe energy penalty, consuming up to 12.5% of energy input when using a typical KOH electrolyte. We bypass this issue by designing a zero-gap electrolyzer configuration based on the integration of cation exchange membrane and bipolar membrane assemblies, which protects stable DSS operation against the precipitates and corrosion in the absence of additional supporting electrolytes.
View Article and Find Full Text PDFNat Commun
January 2025
Max Planck Institute of Colloids and Interfaces, Colloid Chemistry Department, Am Mühlenberg 1, 14476, Potsdam, Germany.
Covalent semiconductors of the carbon nitride family are among the most promising systems to realize "artificial photosynthesis", that is exploiting synthetic materials which use sunlight as an energy source to split water into its elements or converting CO into added value chemicals. However, the role of surface interactions and electronic properties on the reaction mechanism remain still elusive. Here, we use in-situ spectroscopic techniques that enable monitoring surface interactions in carbon nitride under artificial photosynthetic conditions.
View Article and Find Full Text PDFACS Nano
January 2025
College of Chemistry Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong 250014, China.
Coastal/offshore renewable energy sources combined with seawater splitting offer an attractive means for large-scale H electrosynthesis in the future. However, designing anodes proves rather challenging, as surface chlorine chemistry must be blocked, particularly at high current densities (). Additionally, waste seawater with increased salinity produced after long-term electrolysis would impair the whole process sustainability.
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