Catalytic oxidation of sulfide ions over nickel hydroxides

被引：17

作者：

Andreev, A ^{[1
]}

Khristov, P ^{[1
]}

Losev, A ^{[1
]}

机构：

[1] BULGARIAN ACAD SCI,INST GEN & INORGAN CHEM,BU-1113 SOFIA,BULGARIA

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1996年 / 7卷 / 3-4期

关键词：

oxidation; nickel hydroxide; S2-;

D O I：

10.1016/0926-3373(95)00045-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The catalytic sulfide ion oxidation by oxygen to elemental sulfur over beta-Ni(OH)(2) and LiNiO2 has been studied. As a result of experimental investigation performed, a reaction mechanism is suggested which involves heterogeneous and homogeneous processes. Dioxygen activation in the heterogeneous process proceeds via a redox Ni2+ <-> Ni3+ transition and participation of OH- groups. The active HO2- species thus formed carries on the reaction in homogeneous phase. Nickel hydroxides are promising catalysts for practical application.

引用

页码：225 / 235

页数：11

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