标题: A facile TiO2 containing oxygen vacancies and hydroxyl as a Ru-loaded underlay for CO2 hydrogenation to CH4

作者: Zhou, Z (Zhou, Zhun); Li, JJ (Li, Jinjun); You, ZX (You, Zhixiong)

来源出版物: APPLIED SURFACE SCIENCE 卷: 587 文献号: 152856 DOI: 10.1016/j.apsusc.2022.152856 出版年: JUN 15 2022

摘要: In the present study, an anatase-TiO2 abundant in oxygen vacancies and hydroxyl was successfully designed and synthesized by introducing NaBH4, and loading Ru on it for application of CO2 hydrogenation to CH4. Compared with the conventional cascade of CO-mediated reactions of traditional Ru/TiO2, the Ru/TiO2 we prepared changes the reaction pathway of CO2 hydrogenation through abundant hydroxyl on the surface of underlying TiO2. The hydroxyl was formed by ion exchange of F- in TiOF2 and H- in NaBH4, and was a key factor in the CO2 methanation activity of the Ru/TiO2 we prepared beyond that of Ru/Deggusa-P25. The CO2 conversion of the Ru/TiO2 we prepared exceeded that of Ru/Deggusa-P25 by 38% and the CH4 formation rate of the Ru/TiO2 we prepared exceeded that of Ru/Deggusa-P25 by 35% at 300 degrees C.

入藏号: WOS:000776638200001

语言: English

文献类型: Article

作者关键词: CO2 hydrogenation; TiO2; NaBH4; Oxygen vacancy; Ion exchange

地址: [Zhou, Zhun; Li, Jinjun; You, Zhixiong] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

[Zhou, Zhun; You, Zhixiong] Int Cooperat Base Sustainable Utilizat Resources, Wuhan 430072, Peoples R China.

通讯作者地址: You, ZX (通讯作者)，Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

You, ZX (通讯作者)，Int Cooperat Base Sustainable Utilizat Resources, Wuhan 430072, Peoples R China.

电子邮件地址: zyou@whu.edu.cn

影响因子：6.707