硫化La_(1-x)Sr_xCoO_3的电性能和CO催化还原SO

摘要对催化剂La1-xSrxCoO3(x=0.0~0.3)硫化后的结构、电性能和CO还原SO2的活性进行了研究。结果表明,硫化La1-xSrxCoO3为P型导体,在反应气氛下结构为La0.8Sr0.2CoO3催化剂对SO2的吸附量较大,其催化活性较高,而La0.7Sr0.3CoO3对SO2的吸附量较小,催化活性也相对较低,催化剂对SO2的吸附量与催化活性存在对应的关系。

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	王倩
	马智

关键词：钙钛矿电导性能硫化催化还原

Abstract： The structure,electrical conductivity and catalytic reduction of SO_2 by CO over sulfurized(La_(1-x)Sr_xCoO_3)(x=0.0～0.3)were investigated.The results showed that the sulfurized samples of La_(1-x)Sr_xCoO_3 are P-type semiconductor and the effect of catalysts on SO_2 is stronger than that on CO.In reaction mixture,the bigger the adsorptive capacity of SO_2,the higher its catalytic activity over La_(0.8)Sr_(0.2)CoO_3;the weaker the adsorptive capacity of SO_2,the lower its catalytic activity over La_(0.7)Sr_(0.3)CoO_3.It can be concluded that there is a certain relationship between the adsorptive capacity of SO_2 and catalytic activity of the catalyst.

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Received 2008-03-15; published 2008-03-15

引用本文:

王倩;马智;.硫化La_(1-x)Sr_xCoO_3的电性能和CO催化还原SO_2性能[J]. 化学工业与工程, 2008,25(2): 95-97

WANG Qian,MA Zhi.Electrical Conductivity and Catalytic Reduction of SO_2 by CO over Sulfurized La_(1-x)Sr_xCoO_3[J]. Chemcial Industry and Engineering, 2008,25(2): 95-97