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| http://dx.doi.org/10.3762/bjnano.6.103 | DOI Listing |
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Recent Advances and Perspectives on Coupled Water Electrolysis for Energy-Saving Hydrogen Production.
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January 2025
Department of Chemistry, The University of Hong Kong, Hong Kong, 999077, China.
Overall water splitting (OWS) to produce hydrogen has attracted large attention in recent years due to its ecological-friendliness and sustainability. However, the efficiency of OWS has been forced by the sluggish kinetics of the four-electron oxygen evolution reaction (OER). The replacement of OER by alternative electrooxidation of small molecules with more thermodynamically favorable potentials may fundamentally break the limitation and achieve hydrogen production with low energy consumption, which may also be accompanied by the production of more value-added chemicals than oxygen or by electrochemical degradation of pollutants.
View Article and Find Full Text PDFRemote carbon monoxide spillover improves tandem urea electrosynthesis.
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Shaanxi Normal University, School of Materials and Energy, xian, CHINA.
Electrocatalytic urea synthesis from carbon dioxide (CO2) and nitrate (NO3-) offers a promising alternative to traditional industrial methods. However, current catalysts face limitations in the supplies of CO* and Nrelated* intermediates, and their coupling, resulting in unsatisfactory urea production efficiency and energy consumption. To overcome these challenges, we carried out tandem electrosynthesis approach using ruthenium dioxide-supported palladium-gold alloys (Pd2Au1/RuO2).
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Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P.R. China.
Electrochemical alcohol oxidation (EAO) represents an effective method for the production of high-value carbonyl products. However, its industrial viability is hindered by suboptimal efficiency stemming from low reaction rates. Here, we present a synergistic electrocatalysis approach that integrates an active electrode and aminoxyl radical to enhance the performance of EAO.
View Article and Find Full Text PDFEnigma of Sustainable CO Conversion to Renewable Fuels and Chemicals Through Photocatalysis, Electrocatalysis, and Photoelectrocatalysis: Design Strategies and Atomic Level Insights.
Small
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Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.
Growing global population, escalating energy consumption, and climate change threaten future energy security. Fossil fuel combustion, primarily coal, oil, and natural gas, exacerbates the greenhouse effect driving global warming through CO emissions. To address such issues, research is focused on converting CO into valuable fuels and chemicals, which aims to reduce noxious CO and simultaneously bridge the gap between energy demands and sustainable supply.
View Article and Find Full Text PDFFacile synthesis of Ir-based high-entropy alloy nanomaterials for efficient oxygen evolution electrocatalysis.
J Colloid Interface Sci
December 2024
Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, China; School of Materials Science & Engineering, Xi'an University of Technology, Xi'an 710048, China. Electronic address:
High-entropy alloy (HEA) nanomaterials have emerged as promising candidates as oxygen evolution reaction (OER) electrocatalyst to overcome the existing issues of the sluggish reaction kinetics and poor stability. In this study, IrRuCoCuNi HEA three-dimensional-nanoframeworks (3DNF) are prepared using a scalable approach-the spray-drying technique combined with thermal decomposition reduction (SD-TDR). The optimized catalyst, IrRuCoCuNi, demonstrates superior OER performance, with an overpotential of 264 mV at 10 mA cm and a Tafel slope of 47 mV dec, considerably surpassing the catalytic activity of commercial IrO.
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