Results 91 to 100 of about 30,361 (249)
Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts
Advanced Science, EarlyView.Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas +16 more
wiley +1 more source
(Fe4N/GaN)@GC: A Bifunctional Electrocatalyst for High‐Performance Rechargeable Zinc‐Air Batteries
Advanced Science, EarlyView.This work demonstrates that an unprecedented Fe4N/GaN heterostructure, stabilized by a graphitized carbon shell, induces interfacial charge redistribution and optimizes oxygen‐intermediate adsorption, enabling highly efficient bifunctional ORR/OER electrocatalysis for rechargeable zinc‐air batteries.
Xin‐Yuan Wei +8 more
wiley +1 more source
, 2007 A novel phosphoric acid doped Nation-polybenzimidazole (H3PO4/Nafion-PBl) composite membrane was prepared and the H-2/O-2 single cell durability was tested at 150 degrees C without humidification.
Zhang, Yu +4 more
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Adaptive Cu Reconstruction in Heterostructure Drives High‐Rate Nitrate‐to‐Ammonia Conversion
Advanced Science, EarlyView.An adaptively reconstructed Cu/CoOX heterojunction, featuring a surface‐localized, hydroxyl‐rich oxidized Cu species, forms in situ from a CuO/CoOX (Co1Cu9OX) pre‐catalyst during electrochemical nitrate reduction. The self‐adaptive reconstruction and the incorporation of heterostructure regulate nitrogen‐containing intermediate adsorption and *H supply,
Chunyu Yuan +5 more
wiley +1 more source
Advanced Science, EarlyView.Machine learning‐guided strain engineering enables highly active, durable, support‐free Pt–Ni nanonetwork catalysts for the oxygen reduction reaction. Analysis of a Pt‐based catalyst dataset identifies surface compressive strain as an effective descriptor associated with enhanced activity and provided practical design guidelines.
Aparna Chitra Sudheer +4 more
wiley +1 more source
ElectrochemThe preparation and properties of Nafion–TMS (Nafion–trimethylsilyl) and Nafion–TMS–Ru2+-complex modified GC electrodes are reported for the electrochemical oxidation reaction of adrenaline (AD).
R. Aguilar-Sánchez +3 more
doaj +1 more source
Heliyon, 2019 Membranes are widely used daily, such as for filtration in reverse osmosis, or in the form of electrolyte membrane fuel cells. Modified Nafion® membranes were synthesised by impregnation and their mechanical properties were observed.
R. Sigwadi +3 more
doaj +1 more source
Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction
Advanced Science, EarlyView.Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen +5 more
wiley +1 more source
Mesoporous Nafion Membranes for Fuel Cell Applications
, 2011 Ordered mesoporous structures were successfully introduced into Nafion membranes via a soft micelle templating method, using a nonionic block copolymer surfactant, PEO127-PPO48-PEO127 (Pluronic F108).
J. Lu (1422547) +1 more
core +2 more sources
Application of Modified Nafion Membrane in Direct Methanol Fuel Cells
, 2005 聚合物电解质膜是直接醇燃料电池(DMFC)的关键材料。但目前广泛使用的Nafion®电解质膜甲醇渗透严重，而且市售价格较高。甲醇渗透会极大地影响电池性能，同时造成燃料的浪费；因此以较小的成本开发研制适用于直接醇类燃料电池中的阻醇电解质膜对于提高电池性能，加少燃料浪费和环境的保护重要的实际意义。 为节约成本，本文首先利用异丙醇水溶液溶解废弃Nafion®膜回收得Nafion溶液作为原料开发新膜。结果表明：体积浓度在60％－75％之间的异丙醇水溶液能在220℃较快的溶解Nafion® ...
李辰楠
core +1 more source