Proximity of defects and Ti-H on hydrogenated SrTiO3 mediated photocatalytic reduction of CO2 to C2H2

被引：22

作者：

Xu, Haiying ^{[1
]}

Wang, Zhaoliang ^{[1
]}

Liao, Hehua ^{[1
]}

Li, Dongmiao ^{[1
]}

Shen, Jinni ^{[1
]}

Long, Jinlin ^{[1
]}

Dai, Wenxin ^{[1
,2
]}

Wang, Xuxu ^{[1
]}

Zhang, Zizhong ^{[1
,2
]}

机构：

[1] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350106, Peoples R China

[2] Qingyuan Innovat Lab, Quanzhou 362801, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2023年 / 336卷

基金：

中国国家自然科学基金;

关键词：

CO2; reduction; C-C coupling; Photocatalysis; Ti-H species; Defect sites; CARBON-DIOXIDE; CONVERSION; OXIDE; EFFICIENCY; SURFACE;

D O I：

10.1016/j.apcatb.2023.122935

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photocatalytic converting CO2 into C-2 products is highly desirable but is extremely sensitive to catalyst structure. In this work, Ti-H species and oxygen vacancies are simultaneously integrated on hydrogenated SrTiO3 surface by thermally treating with NaBH4, which promotes the activation of CO2 into HCOO- and CO* intermediates. The proximity of oxygen vacancies and Ti-H species contributes to the C-C coupling of intermediates into acetylene (C2H2) products. To the best of our knowledge, this is the first example for the photocatalytic CO2 reduction into C2H2 main products. The optimal hydrogenated SrTiO3 has the C2H2 yield of 39.0 mu mol center dot g(-1) with a 76.0 % selectivity among C-2 products. Therefore, this work provides an approach of designing the adjacent active sites for photocatalytic CO2 conversion into C2+ products.

引用

页数：8

共 44 条

[31] Critical Aspects and Recent Advances in Structural Engineering of Photocatalysts for Sunlight-Driven Photocatalytic Reduction of CO2 into Fuels [J].

Vu, Nhu-Nang ;

Kaliaguine, Serge ;

Do, Trong-On .

ADVANCED FUNCTIONAL MATERIALS, 2019, 29 (31)

[32] Selective Hydrogenation of CO2 to Ethanol over Cobalt Catalysts [J].

Wang, Lingxiang ;

Wang, Liang ;

Zhang, Jian ;

Liu, Xiaolong ;

Wang, Hai ;

Zhang, Wei ;

Yang, Qi ;

Ma, Jingyuan ;

Dong, Xue ;

Yoo, Seung Jo ;

Kim, Jin-Gyu ;

Meng, Xiangju ;

Xiao, Feng-Shou .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2018, 57 (21) :6104-6108

[33] 3D Ag/NiCo-layered double hydroxide with adsorptive and photocatalytic performance [J].

Wang, Tao ;

Liu, Xiqing ;

Ma, Changchang ;

Liu, Yang ;

Dong, Hongjun ;

Ma, Wei ;

Liu, Zhi ;

Wei, Maobin ;

Li, Chunxiang ;

Yan, Yongsheng .

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2018, 93 :298-305

[34] Photocatalytic C-C Coupling from Carbon Dioxide Reduction on Copper Oxide with Mixed-Valence Copper(I)/Copper(II) [J].

Wang, Wei ;

Deng, Chaoyuan ;

Xie, Shijie ;

Li, Yangfan ;

Zhang, Wanyi ;

Sheng, Hua ;

Chen, Chuncheng ;

Zhao, Jincai .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2021, 143 (07) :2984-2993

[35] Hybrid carbon@TiO2 hollow spheres with enhanced photocatalytic CO2 reduction activity [J].

Wang, Weikang ;

Xu, Difa ;

Cheng, Bei ;

Yu, Jiaguo ;

Jiang, Chuanjia .

JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (10) :5020-5029

[36] Direct and indirect Z-scheme heterostructure-coupled photosystem enabling cooperation of CO2 reduction and H2O oxidation [J].

Wang, Ying ;

Shang, Xiaotong ;

Shen, Jinni ;

Zhang, Zizhong ;

Wang, Debao ;

Lin, Jinjin ;

Wu, Jeffrey C. S. ;

Fu, Xianzhi ;

Wang, Xuxu ;

Li, Can .

NATURE COMMUNICATIONS, 2020, 11 (01)

[37] High efficiency reduction of CO2 to CO and CH4 via photothermal synergistic catalysis of lead-free perovskite Cs3Sb2I9 [J].

Wang, Yingying ;

Zhou, Qixin ;

Zhu, Yongfa ;

Xu, Dongsheng .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2021, 294

[38] Synergetic modulation of surface alkali and oxygen vacancy over SrTiO3 for the CO2 photodissociation [J].

Xu, Hua ;

Yan, Chunlei ;

Li, Ruizhe ;

Song, Lizhu ;

Ouyang, Shuxin .

NANOTECHNOLOGY, 2022, 33 (08)

[39] Highly active subnanometer Rh clusters derived from Rh-doped SrTiO3 for CO2 reduction [J].

Yan, Binhang ;

Wu, Qiyuan ;

Cen, Jiajie ;

Timoshenko, Janis ;

Frenkel, Anatoly, I ;

Su, Dong ;

Chen, Xianyin ;

Paris, John B. ;

Stach, Eric ;

Orlov, Alexander ;

Chen, Jingguang G. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 237 :1003-1011

[40] Strong Electronic Oxide-Support Interaction over In2O3/ZrO2 for Highly Selective CO2 Hydrogenation to Methanol [J].

Yang, Chengsheng ;

Pei, Chunlei ;

Luo, Ran ;

Liu, Sihang ;

Wang, Yanan ;

Wang, Zhongyan ;

Zhao, Zhi-Jian ;

Gong, Jinlong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2020, 142 (46) :19523-19531

← 1 2 3 4 5 →