Electrocatalysts for use in fuel cells are claimed. The electrocatalysts include a particle core of a metal selected from W, Mo, and Re and a metal selected from Ni, Fe, and Co. A layer of Pd is adhered to the core, and a layer of catalytically active metal is adhered to the layer ...
The oxygen reduction reaction (ORR) is an electrochemical process of the utmost importance in energy conversion and storage, corrosion and chemical technologies. The ORR plays a major role in biological processes (such as respiratory biochemical chain reactions) and is being incorporated into numerous ...
As an alternative energy, hydrogen can be converted into electrical energy via direct electrochemical conversion in fuel cells. One important drawback of full cells is the sluggish oxygen reduction reaction (ORR) promoted by the high-loading of platinum-group-metal (PGM) electrocatalysts. Fe-N-C ...
Oxygen reduction in nanoporous metal-ionic liquid composite electrocatalysts. Nat. Mater. 9, 904–907 (2010). Article CAS PubMed Google Scholar Blizanac, B. B. et al. Anion adsorption, CO oxidation, and oxygen reduction reaction on a Au(100) surface: the pH effect. J. Phys. Chem. B...
Oxygen reduction electrocatalysis 来自 Semantic Scholar 喜欢 0 阅读量: 56 作者: MS Thorum 摘要: This dissertation is focused on the investigation of the oxygen reduction reaction (ORR) utilizing both existing and newly discovered electrocatalysts. Interest in the ORR is motivated by its application ...
Pure reactional step Oxygen reduction at the DPL/steel interface is assumed to follow locally a first-order reaction. The oxygen reduction rateV(x) can then be written locally as: (7.1)V(x)=kc(x) wherekis the kinetic constant of oxygen reduction (≈10−5m/s). The accessible concentrati...
Matsumoto and co-workers found that the catalytic activity of perovskite oxides for oxygen reduction reaction was influenced by the overlap between theegorbital of the TM and theporbital of oxygen adsorbates, and that the larger the overlap was, the higher the electrocatalytic activity [61,62]...
A major impediment to the commercialization of fuel cells is the low activity of electrocatalysts for the oxygen reduction reaction that involves multiple electron transfer steps. Platinum is considered the best cathode catalyst toward oxygen reduction to water; however, Pt remains an expensive metal of...
www.nature.com/scientificreports OPEN received: 29 September 2015 accepted: 29 October 2015 Published: 30 November 2015 Electrospun interconnected Fe-N/C nanofiber networks as efficient electrocatalysts for oxygen reduction reaction in acidic media Nan Wu1, Yingde Wang1, Yongpeng Lei2, Bing...
The recent advances in electrocatalysis for oxygen reduction reaction (ORR) for proton exchange membrane fuel cells (PEMFCs) are thoroughly reviewed. This comprehensive Review focuses on the low- and non-platinum electrocatalysts including advanced platinum alloys, core–shell structures, palladium-based ...