对系列过渡金属硫化物催化剂上CO还原SO2的反应进行了研究. 结果表明,FeS的催化性能最好,而MnS的催化性能最差,其他几种催化剂的活性顺序依次为CoS＞CuS＞NiS. 催化剂的活性与硫化物自身的氧化还原能力、所具有的晶相结构及其同SO2的吸附键合作用力有密切的关系. 在硫化物催化剂上,SO2还原的反应机理很可能是贫、富含硫化合物的交替作用机理.
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