%0 Journal Article
%T Study on selective oxidation of H2S with nanometer ZnO at room temperature<br>纳米ZnO室温选择氧化H2S特性的研究
%A SHAO Chun-hong
%A JIANG An-xi
%A LI Fen
%A YAN Bo
%A ZHOU Bai-Bin
%A <br>邵纯红
%A 姜安玺
%A 李芬
%A 闫波
%A 周百斌
%J 燃料化学学报
%D 2005
%I 
%X Nanometer sized ZnO with average particle diameters of 15.4 nm, 19. 1 nm, 22.9 nm and 33 nm were prepared by calcination at different temperatures. Their desulfurization behavior and selective oxidation of H2S at room temperature were studied, and compared with commercial ZnO. Properties of nanometer ZnO before and after reactions were characterized by XRD and XPS. XRD results show that there is not ZnS peak detected after reaction, and in the presence of oxygen sulfur and one unknown product are formed, but without oxygen two unknown products are found. In the absence of oxygen, the desulfurization abilities of ZnO decrease,and the product color changes from brown, orange to yellow with the increase of ZnO diameter. The brown and orange products are unstable in air. In the presence of oxygen, however, the desulfurization mechanism of nanometer sized ZnO is obviously different. Nanometer sized ZnO can catalyze the oxidation of H2S to sulfur at room temperature. ZnO particle size also gives great influence on this process.
%K nanocrystalline ZnO
%K room temperature
%K H2S
%K elemental sulfur
%K oxidation<br>纳米
%K 氧化锌
%K 室温
%K 硫化氢
%K 单质硫
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=C6AB115B41BD2F1616ECDB095B69B8ED&aid=9892EE4282D2023E&yid=2DD7160C83D0ACED&vid=27746BCEEE58E9DC&iid=E158A972A605785F&sid=47F7649551A37CFC&eid=8143FF92EEF26F96&journal_id=0253-2409&journal_name=燃料化学学报&referenced_num=4&reference_num=15