Effects of the second metals on the active carbon supported Pt catalysts for HI decomposition in the iodine–sulfur cycle
Effects of the second metals on the active carbon supported Pt catalysts for HI decomposition in the iodine–sulfur cycle
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DOI：
10.1016/j.ijhydene.2014.04.098
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发表时间：
2014-09
影响因子：
7.2
通讯作者：
Laijun Wang;Songzhi Hu;D. G. Li;Qingxia Han;Ping Zhang;Songzhe Chen;Jingming Xu
中科院分区：
文献类型：
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作者：
Laijun Wang;Songzhi Hu;D. G. Li;Qingxia Han;Ping Zhang;Songzhe Chen;Jingming Xu
采用浸渍还原法制备了活性炭负载的单金属Pt和Pt基双金属催化剂（包括Pt- ni、Pt- pd和Pt- rh）。比较了它们在固定床反应器中分解HI的催化活性。采用BET、XRD、TEM等手段对新制备的单金属Pt和废旧Pt基双金属催化剂进行了表征，考察了其比表面积、结构和形貌的变化。结果表明，Pt基双金属催化剂比单金属Pt催化剂在HI分解中具有更好的活性和更高的稳定性。
The active carbon supported monometallic Pt and Pt-based bimetallic catalysts (including Pt–Ni, Pt–Pd and Pt–Rh) were prepared by the impregnation-reduction method. Their catalytic activities were compared for HI decomposition in a fixed bed reactor. The fresh and used monometallic Pt and Pt-based bimetallic catalysts were characterized by BET, XRD and TEM in order to investigate their changes in surface area, structure, and morphology, respectively. The results showed that the Pt-based bimetallic catalysts had better activity and higher stability than the monometallic Pt catalyst in HI decomposition.