GRR制备Pd-CeO2AuCNTs甲酸盐电氧化催化剂:高金属利用率及抗中毒性能
摘要:摘要为提高贵金属Pd的利用率,通过Cu欠电位沉积及Cu-Pd置换反应制备了具有单原子层Pd的Pd-Au/CNTs 催化剂,并进一步引入CeO2制得Pd-CeO2/Au/CNTs催化剂。与Pd-Au/CNTs相比,Pd-CeO2/Au/CNTs在保证高活性的同时,抗中毒性能显著提升,在Au表面构建单层Pd并与CeO2形成界面同时提高了Pd的利用率及抗毒性。
Abstract::To improve the utilization of noble metal catalysts, Pd deposition on Au nanoparticles supported by carbon nanotubes (CNTs) via galvanic replacement reaction (GRR) was explored to prepare Pd-Au/CNTs catalysts with high Pd utilization. CeO2 was introduced on Au surface to prepare Pd-CeO2/Au/CNTs catalysts further. Compared with Pd-Au/CNTs, not only the catalytic activity for formate oxidation but also the anti-poisoning performances were improved. Results indicated that, the utilization of Pd and the anti-poisoning performances of the catalysts were improved by the monolayer Pd on Au surface and the interfaces between Pd and CeO2, simultaneously.
中文标题:GRR制备Pd-CeO2AuCNTs甲酸盐电氧化催化剂:高金属利用率及抗中毒性能
英文标题:Fabricating Pd/CeO2 Interfaces on Au Particles via Galvanic Replacement Reaction to Simultaneously Enhance Pd Utilization and Anti-Poisoning Performance for Formate Oxidation
发表时间:2018-01-11
作者:
王建设, 马云, 程相林, 赵建宏, 宋成盈, 王留成
作者简介:
王建设(1975-),男,博士,副教授,主要从事能源与环境电化学研究。
关键词:Pd催化剂,利用率,抗中毒性,CeO2,
Key words:Pd catalysts,utilization,anti-poisoning performance,CeO2,
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