NiCo2S4化合物对氧还原的电催化性能

Abstract

Abstract: NiCo₂S₄ compound was synthesized by a hydrothermal method using Co（Ac）₂，Ni（Ac）₂，and thiourea as precursors.The physical characteristics and catalytic performances of the as-prepared sample were characterized by XRD，SEM，and RDE technique.The sample presents agglomerated spherical particles and good dispersion，reveals the crystalline characteristics of cubic NiCo₂S₄ compound.The catalyst showed higher electrocatalytic activity towards oxygen reduction reaction（ORR） in 0.5 mol/L H₂SO₄ than that obtained with CoS₂ and NiS，and had the open circuit potential of 0.75 V（vs.NHE）.The oxygen molecule reduction may proceed via the overall four-electron transfer reaction to water formation

Key words: oxygen reduction, chalcogenides, catalytic activity, hydrothermal method

CLC Number:

TQ138.13

TIAN Xi-Qiang, ZHAO Dong-Jiang, MA Song-Yan, CHI Cai-Xia, DONG Yan-Ping, TIAN Jun, QIAO Xiu-Li. Electrocatalytic performances of NiCo₂S₄ compound towards oxygen reduction[J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(8): 74-.

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Inorganic Acid-Base-Salt Committee of CIESC

Electrocatalytic performances of NiCo₂S₄ compound towards oxygen reduction

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Electrocatalytic performances of NiCo2S4 compound towards oxygen reduction

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Electrocatalytic performances of NiCo₂S₄ compound towards oxygen reduction