Results 261 to 270 of about 2,035,668 (311)

ELECTROCHEMICAL REDUCTION OF OXYGEN

Russian Chemical Reviews, 1965
CONTENTS I. Introduction 717 II. Reduction of oxygen at a mercury electrode 719 III. Reduction of oxygen on platinum and platinum group metals 721 IV.
V S Bagotskii, Lev N Nekrasov, N A Shumilova   +2 more
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Alloy Oxygen Reduction Electrocatalysts

ECS Meeting Abstracts, 2006
Abstract not Available.
Ting He, Eric Kreidler, Liufeng Xiong, Errun Ding, Yoshiya Fujiwara, Qingmin Xu   +5 more
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Neuroglobin: Enzymatic reduction and oxygen affinity

Biochemical and Biophysical Research Communications, 2008
Neuroglobin (Ngb) is a hexacoordinate globin expressed in the nervous system of vertebrates, involved in neuroprotection. O(2) equilibrium measurements on mouse Ngb yielded significantly different P(50) values, ranging from approximately 2 torr to approximately 10 torr. By a kinetic approach minimizing the effects of protein autoxidation, we measured P(
GIUFFRE', ALESSANDRO, MOSCHETTI, TOMMASO, VALLONE, Beatrice, BRUNORI, Maurizio   +3 more
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Earth‐Abundant Nanomaterials for Oxygen Reduction

Angewandte Chemie International Edition, 2015
AbstractReplacing the rare and precious platinum (Pt) electrocatalysts with earth‐abundant materials for promoting the oxygen reduction reaction (ORR) at the cathode of fuel cells is of great interest in developing high‐performance sustainable energy devices. However, the challenging issues associated with non‐Pt materials are still their low intrinsic
Wei, Xia, Asif, Mahmood, Zibin, Liang, Ruqiang, Zou, Shaojun, Guo   +4 more
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Electrocatalytic Oxygen Reduction Reaction

2008
Oxygen (O2) is the most abundant element in the Earth’s crust. The oxygen reduction reaction (ORR) is also the most important reaction in life processes such as biological respiration, and in energy converting systems such as fuel cells. ORR in aqueous solutions occurs mainly by two pathways: the direct 4-electron reduction pathway from O2 to H2O, and ...
Chaojie Song, Jiujun Zhang
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Anodophilic Biofilm Catalyzes Cathodic Oxygen Reduction

Environmental Science & Technology, 2009
Poor cathodic oxygen reduction and the detrimental buildup of a pH gradient between anode and cathode are the major hurdles in the development of sustainable microbial fuel cells (MFCs). This article describes and tests a concept that can help overcoming both of these limitations, by inverting the polarity of the MFC repeatedly, allowing anodic and ...
Cheng, K.Y., Ho, G., Cord-Ruwisch, R.
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Periplasmic oxygen reduction by Desulfovibrio species

Archives of Microbiology, 2001
Washed cells of Desulfovibrio vulgaris strain Marburg (DSM 2119) reduced oxygen to water with H(2) as electron donor at a mean rate of 253 nmol O(2) min(-1) (mg protein)(-1). After separating the periplasm from the cells, more than 60% of the cytochrome c activity and 90% of the oxygen-reducing activity were found in the periplasmic fraction.
A, Baumgarten, I, Redenius, J, Kranczoch, H, Cypionka   +3 more
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Mechanism of Oxygen Reduction Reaction

2021
This chapter describes the mechanism and kinetics of oxygen reduction. Therefore, the adsorption of O2 on transition metals will be discussed in detail below. The adsorption of oxygen molecules on the surface of the catalyst is complicated. It not only has the associative adsorption and dissociative adsorption adsorbed in molecular form but also the ...
Zuzhen Zhao, Pei Kang Shen
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Carbon-Free Electrocatalyst for Oxygen Reduction and Oxygen Evolution Reactions

ACS Applied Materials & Interfaces, 2015
A nanoporous Ag-embedded SnO2 thin film was fabricated by anodic treatment of electrodeposited Ag-Sn alloy layers. The ordered nanoporous structure formed by anodization played a key role in enhancing the electrocatalytic performance of the Ag-embedded SnO2 layer in several ways: (1) the roughness factor of the thin film is greatly increased from 23 in
Yang, Yang, Huilong, Fei, Gedeng, Ruan, Lei, Li, Gunuk, Wang, Nam Dong, Kim, James M, Tour   +6 more
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Oxygen reduction on stainless steel

Journal of Applied Electrochemistry, 1993
Oxygen reduction was studied on AISI 304 stainless steel in 0.51 m NaCl solution at pH values ranging from 4 to 10. A rotating disc electrode was employed. It was found that oxygen reduction is under mixed activation-diffusion control. The reaction order with respect to oxygen was found to be one.
Babić, Ranko, Metikoš-Huković, Mirjana   +1 more
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