Effect of interaction between different CeO_(2)plane and platinum nanoparticles on catalytic activity of Pt/CeO_(2)in toluene oxidation

查看全文 作　　者：Shengsheng [1]Chang;Yong [1]jia;Yiqing [2]Zeng;Fuping [1]Qian;Lina [1]Guo;Shenghua [1]Wu;Jinli [3]Lu;Yunlong [3]Han

机构地区：[1]School of Energy and Environment,Anhui University of Technology,Ma'anshan 243002,China;[2]School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;[3]School of Civil Engineering and Architecture,Anhui University of Technology,Ma'anshan 243002,China

出　　处：《Journal of Rare Earths》索引2022年第40卷第11期,共9页

基　　金：Project supported by the Natural Science Foundation for the Higher Education Institutions of Anhui Province of China(KJ2020A0236,KJ2018A0638,KJ2019A0079)。 摘　　要：The plane exposure of support vitally affects the catalytic performance of the catalyst.In this work,CeO_(2)nanorods((110)plane exposure),nano-octahedrons((111)plane exposure)and nano-cubes((100)plane exposure)were prepared as the supports of Pt/CeO_(2)samples to investigate the effect of CeO_(2)plane exposure on total toluene oxidation.Characterizations reveal that the(110)plane of CeO_(2)is more helpful to the dispersion of Pt species,followed by(111)face.The improved dispersion of Pt species can enhance the metal-supports interaction,which promotes the electron transfer of CeO_(2)carrier to Pt nanoparticles and the adsorption-activation of O_(2),thereby facilitating the total oxidation of toluene via the Langmuir-Hinshelwood(L-H)mechanism.Therefore,Pt/CeO_(2)-r(nanorods)sample expresses excellent catalytic performance of toluene oxidation.Finally,the procedure of toluene total oxidation was studied by in-situ diffuse reflectance infrared Fourier transform(DRIFT)spectroscopy.We expect that this work can contribute to the development of an effective sample for the decomposition of volatile organic compounds(VOCs). 关键词：CeO_(2)plane Pt/CeO_(2) Toluene oxidation Metal-supports interaction Rare earths

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Effect of interaction between different CeO_(2)plane and platinum nanoparticles on catalytic activity of Pt/CeO_(2)in toluene oxidation

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