Introducing Oxygen Vacancies and Ti3+on Rh/TiO2 via Plasma Treatment for CO to Ethanol

被引：4
作者：
Wang, Zhenyu [1 ]
Tian, Shoushuai [1 ]
Guo, Junxin [1 ]
Wang, Zhao [1 ]
机构：
[1] Tianjin Univ, Natl Engn Res Ctr Ind Crystallizat Technol, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
来源：
ENERGY & FUELS | 2023年 / 37卷 / 01期
基金：
中国国家自然科学基金;
关键词：
SUPPORTED RH CATALYSTS; RH-MN-LI/SIO2; CATALYST; SYNGAS CONVERSION; CARBON-NANOTUBE; CE PROMOTER; HYDROGENATION; TIO2; NANOPARTICLES; OXIDATION; PD;
D O I：
10.1021/acs.energyfuels.2c03018
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Rh-based catalysts are widely used in CO hydrogenation to ethanol. In this work, Rh/TiO2 catalysts were prepared by glow discharge plasma. Rhodium salt was reduced by electrons in an electric field at room temperature. Oxygen vacancies and Ti3+ were produced on the surface of Rh/TiO2 by plasma. The defects promoted the synergistic effect of Rh and TiO2 through the enhanced interaction between active metal and supporter. Ti3+ is beneficial for the adsorption of intermediate formyl group. In situ IR revealed that the bridged and linear adsorption mechanisms of CO can promote the formation of ethanol intermediates. Rh/TiO2 catalysts by plasma exhibited a superior space-time yield of 0.106 gMeOH center dot gcat-1 h-1, at 260 degrees C and 3 MPa, which was approximately 1.8 times that by traditional hydrogen reduction.
引用
收藏
页码：214 / 221
页数：8
相关论文
共 50 条
[31]   Supercapacitive performance of homogeneous Co3O4/TiO2 nanotube arrays enhanced by carbon layer and oxygen vacancies [J].
Cuiping Yu ;
Yan Wang ;
Hongmei Zheng ;
Jianfang Zhang ;
Wanfen Yang ;
Xia Shu ;
Yongqiang Qin ;
Jiewu Cui ;
Yong Zhang ;
Yucheng Wu .
Journal of Solid State Electrochemistry, 2017, 21 :1069-1078
[32]   Modulation of Pt species on oxygen vacancies enriched TiO2 via UV illumination for photocatalytic performance optimization [J].
Ma, Xujun ;
Wu, Jianan ;
Xu, Liming ;
Zhao, Bin ;
Chen, Feng .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2020, 586
[33]   Increasing the number of oxygen vacancies on TiO2 by doping with iron increases the activity of supported gold for CO oxidation [J].
Carrettin, Silvio ;
Hao, Yalin ;
Aguilar-Guerrero, Veronica ;
Gates, Bruce C. ;
Trasobares, Susana ;
Calvino, Jose J. ;
Corma, Avelino .
CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (27) :7771-7779
[34]   Reduced Step Edges on Rutile TiO2(110) as Competing Defects to Oxygen Vacancies on the Terraces and Reactive Sites for Ethanol Dissociation [J].
Martinez, U. ;
Hansen, J. O. ;
Lira, E. ;
Kristoffersen, H. H. ;
Huo, P. ;
Bechstein, R. ;
Laegsgaard, E. ;
Besenbacher, F. ;
Hammer, B. ;
Wendt, S. .
PHYSICAL REVIEW LETTERS, 2012, 109 (15)
[35]   Ethanol Oxidation Reaction Catalyzed by Palladium Nanoparticles Supported on Hydrogen-Treated TiO2 Nanobelts: Impact of Oxygen Vacancies [J].
Lu, Bingzhang ;
Yao, Bin ;
Roseman, Graham ;
Deming, Christopher P. ;
Lu, Jia En ;
Millhauser, Glenn L. ;
Li, Yat ;
Chen, Shaowei .
CHEMELECTROCHEM, 2017, 4 (09) :2211-2217
[36]   Oxygen Vacancies Promoted the Selective Photocatalytic Removal of NO with Blue TiO2 via Simultaneous Molecular Oxygen Activation and Photogenerated Hole Annihilation [J].
Shang, Huan ;
Li, Meiqi ;
Li, Hao ;
Huang, Shun ;
Mao, Chengliang ;
Ai, Zhihui ;
Zhang, Lizhi .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2019, 53 (11) :6444-6453
[37]   C,N Doped TiO2 Nanoparticles with Abundant Surface Ti3+ and Oxygen Vacancies for Visible-Light Photocatalytic Hydrogen Production [J].
Wang, Ke ;
Yang, Nan ;
Xiao, Bin ;
Shen, Yuandong ;
Zi, Baoye ;
Qiu, Zhishi ;
Zhou, Tong ;
Hu, Rui ;
Zhan, Weijie ;
Qiu, Guoyang ;
Duan, Changyu ;
Liu, Feng ;
Zhu, Zhongqi ;
Zhang, Jin ;
Liu, Qingju .
ACS APPLIED NANO MATERIALS, 2024, 7 (18) :21842-21851
[38]   Synergistic effect of interstitial C doping and oxygen vacancies on the photoreactivity of TiO2 nanofibers towards CO2 reduction [J].
Li, Yuhan ;
Ren, Ziteng ;
Gu, Miaoli ;
Duan, Youyu ;
Zhang, Wei ;
Lv, Kangle .
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2022, 317
[39]   Oxygen vacancies in Cu/TiO2 boost strong metal-support interaction and CO2 hydrogenation to methanol [J].
Zhang, Chenchen ;
Wang, Letian ;
Etim, Ubong Jerome ;
Song, Yibing ;
Gazit, Oz M. ;
Zhong, Ziyi .
JOURNAL OF CATALYSIS, 2022, 413 :284-296
[40]   Functionalization of Polypropylene by TiO2 Photocatalytic Nanoparticles: On the Importance of the Surface Oxygen Plasma Treatment [J].
Zajac, Karolina ;
Macyk, Joanna ;
Szajna, Konrad ;
Krok, Franciszek ;
Macyk, Wojciech ;
Kotarba, Andrzej .
NANOMATERIALS, 2024, 14 (16)
12345