燃料化学学报（中英文）2025，Vol.53Issue(5)：713-724,12.DOI:10.1016/S1872-5813(24)60513-X
Pt基CO氧化抗硫催化剂中Gd2O3的作用
The role of Gd2O3 in Pt-based sulfur-resistant catalysts for CO oxidation
摘要
Abstract
The present study investigates the preparation and characterization of three catalysts(1%Pt/CZLY,1%Pt/CZLGd and 1%Pt/CZLYGd)using the polyol method.The results reveal that the addition of gadolinium elements(Gd)to the catalysts leads to an enhancement in the specific surface area.This is attributed to the Ce3+species promotion and Olatt formation,facilitated by the presence of Gd.Furthermore,the action of Gd results in the formation of smaller and more uniformly dispersed Pt particles.The 1%Pt/CZLYGd catalyst displayed the most exceptional CO catalytic oxidation activity(t90=95℃,GHSV=45000 mL/(g·h)),demonstrating its durability for 24 h.Additionally,it exhibited notable resistance to the toxicity of SO2.The interaction of Gd2O3 with other components has the potential to enhance the number and variety of active sites,thereby improving the catalytic efficiency and enhancing the thermal stability and sulfur resistance of the catalyst,thus extending its service life.This provides a novel concept for the development of high sulfur-resistant catalysts for industrial applications.关键词
铈基复合储氧材料/CO催化氧化/Pt基催化剂/Gd/抗硫Key words
cerium-based composite oxygen storage material/CO catalytic oxidation/Pt-based catalyst/gadolinium/sulfur resistance分类
化学引用本文复制引用
姜利,李孔斋,袁姜勇,李志强,李跃伦,赵云昆,杨冬霞,王成雄,王华,程显名..Pt基CO氧化抗硫催化剂中Gd2O3的作用[J].燃料化学学报（中英文）,2025,53(5):713-724,12.基金项目
This project was supported by the Scientific and Technological Project of Yunnan Precious Metals Laboratory(YPML-20230506256),the National Natural Science Foundation of China(52460013),and the Major Science and Technology Special Project of Yunnan Province(202302AG050005-2),Yunnan Province Science and Technology Department. 云南省贵金属实验室科技项目(YPML-20230506256),国家自然科学基金(52460013)和云南省重大科技专项计划(202302AG050005-2)资助 （YPML-20230506256）
