Results 61 to 70 of about 1,081,138 (206)

Selenium-functionalized carbon as a support for platinum nanoparticles with improved electrochemical properties for the oxygen reduction reaction and CO tolerance [PDF]

, 2008
Using selenium-functionalized carbon as supports, platinum nanoparticles were uniformly dispersed on the carbon surface, and showed improved electrochemical properties for the oxygen reduction reaction. At the same time the CO tolerance is improved. The
Da, Huahua, Ji, Shan, Liao, Shijun, Wang, Hui, Wang, Rongfang   +4 more
core   +1 more source

Transition Metal-Based Polyoxometalates for Oxygen Electrode Bifunctional Electrocatalysis

Batteries
Polyoxometalates (POMs) with transition metals (Co, Cu, Fe, Mn, Ni) of Keggin structure and lamellar-stacked multi-layer morphology were synthesized. They were subsequently explored as bifunctional electrocatalysts for oxygen electrodes, i.e., oxygen ...
Jadranka Milikić, Filipe Gusmão, Sara Knežević, Nemanja Gavrilov, Anup Paul, Diogo M. F. Santos, Biljana Šljukić   +6 more
doaj   +1 more source

Recent Advances in Electrocatalysts for Oxygen Reduction Reaction [PDF]

Chemical Reviews, 2016
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 catalysts, metal oxides and chalcogenides, carbon-
Shao, Minhua, Chang, Qiaowan, Dodelet, Jean-Pol, Chenitz, Regis   +3 more
openaire   +3 more sources

Transient study of the oxygen reduction reaction on reduced Pt and Pt alloys microelectrodes: evidence for the reduction of pre-adsorbed oxygen species linked to dissolved oxygen

, 2015
Using chronoamperometry at preconditioned oxide-free Pt microdisc electrodes in aqueous media, we investigated the oxygen reduction reaction (ORR) on the millisecond timescale and obtained results consistent with the reduction of oxygen species which ...
Denuault, Guy, Perry, Samuel
core   +1 more source

Effects of heat treatment on the catalytic activity and methanol tolerance of carbon-supported platinum alloys [PDF]

, 2012
This work studies the effect of heat treatment of carbon-dispersed platinum and platinum alloys on its methanol tolerance and catalytic activity as gas diffusion electrodes for oxygen reduction reaction (ORR) in acid medium.
C Lamy, CJ Tseng, CWB Bezerra, H Yang, H Yang, HA Gasteiger, JRC Salgado, KL Hsueh, L Xiong, L Xiong, LGRA Santos, M Neergat, S Mukerjee, T Maiyalagan, V Baglio, V Baglio, V Baglio, WZ Li, X Zhao, Y Bing   +19 more
core   +1 more source

Oxygen-Reconstituted Active Species of Single-Atom Cu Catalysts for Oxygen Reduction Reaction

Research, 2020
Identification of an active center of catalysts under realistic working conditions of oxygen reduction reaction (ORR) still remains a great challenge and unclear.
Liu Yang, Haoxiang Xu, Huibing Liu, Xiaofei Zeng, Daojian Cheng, Yan Huang, Lirong Zheng, Rui Cao, Dapeng Cao   +8 more
doaj   +1 more source

Promoting H2O2 production via 2-electron oxygen reduction by coordinating partially oxidized Pd with defect carbon. [PDF]

, 2020
Electrochemical synthesis of H2O2 through a selective two-electron (2e-) oxygen reduction reaction (ORR) is an attractive alternative to the industrial anthraquinone oxidation method, as it allows decentralized H2O2 production. Herein, we report that the
Chang, Qiaowan, Chen, Jingguang G, Chen, Zheng, Denny, Steven R, Gao, Hongpeng, Lee, Ji Hoon, Mostaghimi, Amir Hassan Bagherzadeh, Siahrostami, Samira, Xin, Huolin L, Zhang, Pu, Zhang, Ying, Zhao, Xueru   +11 more
core  

Rational Design of Covalent Organic Frameworks-Based Single Atom Catalysts for Oxygen Evolution Reaction and Oxygen Reduction Reaction

Molecules
The rational design of high-performance catalysts for the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is essential for the development of clean and renewable energy technologies, particularly in fuel cells and metal-air batteries.
Wenli Xie, Bin Cui, Desheng Liu, Haicai Huang, Chuanlu Yang   +4 more
doaj   +1 more source

New Progress on Development of Oxygen Evolution Reaction Catalysts

Journal of MMIJ, 2017
In recent years, the electrochemical water splitting using renewable energy has attracted considerable attention for the production and utilization of hydrogen gas as a fuel. However, the high overpotential for the oxygen evolution reaction increases the
Shunsuke YAGI, Hidekazu IKENO, Ikuya YAMADA   +2 more
doaj   +1 more source

Characterization of Pd Nanocomposites for the Oxygen-Reduction Reaction

Proceedings
Carbon nanocomposites are essential supports in fuel cell catalysts, ensuring dispersion, anchoring, and reactant access. Here, we demonstrated an in situ synthesis of Pd nanoparticles using electrogenerated hydrophilic carbon (EHC) matrix that acts ...
Ilias Ouanzi, Maria C. Oliveira
doaj   +1 more source