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DOI10.1039/d1cy00112d
Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites
Sun, Yukun; Gao, Yang; He, Chi; Song, Weiyu; Jiang, Zeyu; Albilali, Reem; Bai, Bo
通讯作者Bai, B (通讯作者),Changan Univ, Sch Water & Environm, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Xian 710064, Peoples R China. ; He, C (通讯作者),Xi An Jiao Tong Univ, Sch Energy & Power Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China. ; Bai, B (通讯作者),Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Tibetan Med Res, Xining 810008, Peoples R China. ; Bai, B (通讯作者),Qinghai Prov Key Lab Tibetan Med Res, Xining 810001, Peoples R China.
发表日期2021
ISSN2044-4753
EISSN2044-4761
起始页码3762
结束页码3774
卷号11期号:11
英文摘要It is of great significance to design highly active and stable catalysts for CO oxidation. Herein, a Pt/In-SnO2 catalyst was firstly fabricated via a facile hydrothermal reaction coupled with photoreduction strategy, achieving 1 vol% of CO totally oxidized at just 145 degrees C, over 200 degrees C lower than that of Pt/SnO2. Moreover, Pt/In-SnO2 demonstrates superior catalytic stability and recyclability under both dry and humid conditions. Incorporation of In cations results in marked structure distortion of SnO2, promoting the formation of oxygen vacancies and enhancing the concentration and mobility of reactive oxygen species. Abundant Pt sites over Pt/In-SnO2 further accelerate CO adsorption and activation. Density functional theory results prove that the energy barrier of CO oxidation reduces from 0.85 to 0.75 eV after In doping and the produced CO2 can desorb spontaneously from the catalyst surface, which accelerates the CO oxidation process. This work provides new ideas for designing robust catalysts for low-temperature CO elimination.
关键词CATALYTIC-OXIDATIONAU NANOPARTICLESPT/CEO2 CATALYSTOXIDESNO2CUPERFORMANCETOLUENETIO2FE
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000643921700001
来源期刊CATALYSIS SCIENCE & TECHNOLOGY
来源机构中国科学院西北生态环境资源研究院
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/255037
作者单位[Sun, Yukun; Bai, Bo] Changan Univ, Sch Water & Environm, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Xian 710064, Peoples R China; [Sun, Yukun; He, Chi; Jiang, Zeyu] Xi An Jiao Tong Univ, Sch Energy & Power Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China; [Gao, Yang; Song, Weiyu] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China; [Albilali, Reem] Imam Abdulrahman Bin Faisal Univ, Coll Sci, Dept Chem, POB 1982, Dammam 31441, Saudi Arabia; [Bai, Bo] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Tibetan Med Res, Xining 810008, Peoples R China; [Bai, Bo] Qinghai Prov Key Lab Tibetan Med Res, Xining 810001, Peoples R China
推荐引用方式
GB/T 7714
Sun, Yukun,Gao, Yang,He, Chi,et al. Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites[J]. 中国科学院西北生态环境资源研究院,2021,11(11).
APA Sun, Yukun.,Gao, Yang.,He, Chi.,Song, Weiyu.,Jiang, Zeyu.,...&Bai, Bo.(2021).Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites.CATALYSIS SCIENCE & TECHNOLOGY,11(11).
MLA Sun, Yukun,et al."Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites".CATALYSIS SCIENCE & TECHNOLOGY 11.11(2021).
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