Surface modification of CeO2 nanoflakes by low temperature plasma treatment to enhance imine yield: Influences of different plasma atmospheres
Surface modification of CeO2 nanoflakes by low temperature plasma treatment to enhance imine yield: Influences of different plasma atmospheres
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低温等离子体处理CeO2纳米片表面改性提高亚胺产率:不同等离子体气氛的影响
DOI:
10.1016/j.apsusc.2018.05.135
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发表时间:
2018-10
影响因子:
6.7
通讯作者:
Xijiang Chang
中科院分区:
文献类型:
--
作者:
Jingxia Yang;Huihui Ding;Zhu Zhu;Qiuhe Wang;Jinjie Wang;Jingli Xu;Xijiang Chang
Solvothermal synthesized CeO2nanoflakes were plasma treated under different atmospheres (combination of Ar, H2, O2and NH3), and further used for imine synthesis. The plasma processing can improve the amount of surface oxygen vacancies, Ce3+ratio, and the peroxy anions O22−ratio. All the three parameters can influence the CeO2catalytic ability of imine conversion to different extent. The plasma with working gas of H2and/or O2can increase the peroxy anions O22−ratio greatly (from 3.14% to about 40%), while the reducing condition (Ar + H2and Ar + NH3as working gas) can significantly improve the Ce3+ratio (∼28.54%) and the surface oxygen vacancies. The reaction rate of imine synthesis can be improved up to 75% of the pristine CeO2when Ar + H2mixture gas was used as the plasma atmosphere. The amount of CeO2surface oxygen vacancies is the most important parameter for imine conversion. The enhancement of catalytic ability can be mainly attributed to the improved surface oxygen vacancies and the Ce3+ratio, and slightly to the rising of peroxy anions O22−ratio, although the value of the last parameter increased most.
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影响因子:
4.6
作者:
Jingjin Zhang;Jingxia Yang;Jinjie Wang;Huihui Ding;Qianlong Liu;Ulrich Schubert;Yichuan Rui;Jingli Xu
通讯作者:
Jingli Xu
影响因子:
3.9
作者:
Zhao Meiqin;Li Yao;Dong Haifeng;Wang Lixin;Chen Zhouhao;Wang Yazhou;Li Zhiping;Xia Meirong;Shao Guangjie
通讯作者:
Shao Guangjie
影响因子:
6.7
作者:
Ruixue Wang;Cheng Zhang;Xiong Liu;Qing Xie;P. Yan;T. Shao
通讯作者:
Ruixue Wang;Cheng Zhang;Xiong Liu;Qing Xie;P. Yan;T. Shao
DOI:
10.1002/chem.201403636
发表时间:
2015-01-07
期刊:
Chemistry (Weinheim an der Bergstrasse, Germany)
影响因子:
--
作者:
Yang J;Lukashuk L;Akbarzadeh J;Stöger-Pollach M;Peterlik H;Föttinger K;Rupprechter G;Schubert U
通讯作者:
Schubert U
影响因子:
15.1
作者:
Wei Wang;Qin Zhu;F. Qin;Qiguang Dai;Xingyi Wang
通讯作者:
Wei Wang;Qin Zhu;F. Qin;Qiguang Dai;Xingyi Wang