CuBi2O4 photocathode with integrated electric field for enhanced H2O2 production

被引:49
作者
Sun, Mengdi [1 ,2 ]
Liu, Bo [1 ]
Han, Weihua [1 ]
Zhang, Zemin [1 ]
Xie, Mingzheng [2 ]
机构
[1] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Environm Pollut Predict & Control Gansu Pr, Lanzhou 730000, Peoples R China
来源
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2022年 / 304卷
关键词
H2O2; production; Internal electric field; Photocathode; Photothermoelectricity; CuBi2O4; CHARGE SEPARATION; PHOTOCATALYST; COLLECTION; PHOTOANODES; EFFICIENCY; EVOLUTION; CELLS; BIVO4;
D O I
10.1016/j.apcatb.2021.120980
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
Metal oxide semiconductors are promising for photosynthetic H2O2 production, provided the issue of excessive charge recombination can be adequately addressed. Inducing internal electric field is a common remedial strategy to inhibit carrier recombination but challenging to accomplish without external power input. To overcome this drawback, a novel photocathode was designed and fabricated by combing photothermoelectricity and photoelectricity by adding a NaCo2O4 film under the CuBi2O4 film to generate an internal electric field from photoinduced temperature gradients. Our results show the significantly enhanced photoelectrochemical activity for the composite photocathode with an H2O2 production concentration of 192.9 mu mol/L, 2.4 times higher than CuBi2O4 . Photocurrent under controlled temperature gradients and COMSOL simulation defined that the enhancement comes from the synergy of photothermoelectricity and photoelectricity. This work demonstrates a feasible strategy to inhibit carrier recombination in photoelectrode with internal thermoelectric potential, which can significantly enhance the energy conversion efficiency without extra energy consumption.
引用
收藏
页数:9
相关论文
共 49 条
[31]   Quantification of the loss mechanisms in emerging water splitting photoanodes through empirical extraction of the spatial charge collection efficiency [J].
Segev, Gideon ;
Jiang, Chang-Ming ;
Cooper, Jason K. ;
Eichhorn, Johanna ;
Toma, Francesca M. ;
Sharp, Ian D. .
ENERGY & ENVIRONMENTAL SCIENCE, 2018, 11 (04) :904-913
[32]   Composition Effects on Ultrafast Optical Properties of CuxOy Thin Films: A Transient Absorption Study [J].
Shenje, Learnmore ;
Larson, Steven ;
Zhao, Yiping ;
Ullrich, Susanne .
JOURNAL OF PHYSICAL CHEMISTRY C, 2020, 124 (45) :24908-24918
[33]   Domain-engineered BiFeO3 thin-film photoanodes for highly enhanced ferroelectric solar water splitting [J].
Song, Jaesun ;
Kim, Taemin Ludvic ;
Lee, Jongmin ;
Cho, Sam Yeon ;
Cha, Jaeseong ;
Jeong, Sang Yun ;
An, Hyunji ;
Kim, Wan Sik ;
Jung, Yen-Sook ;
Park, Jiyoon ;
Jung, Gun Young ;
Kim, Dong-Yu ;
Jo, Ji Young ;
Bu, Sang Don ;
Jang, Ho Won ;
Lee, Sanghan .
NANO RESEARCH, 2018, 11 (02) :642-655
[34]   Photoexcited single metal atom catalysts for heterogeneous photocatalytic H2O2 production: Pragmatic guidelines for predicting charge separation [J].
Teng, Zhenyuan ;
Cai, Wenan ;
Sim, Wenwen ;
Zhang, Qitao ;
Wang, Chengyin ;
Su, Chenliang ;
Ohno, Teruhisa .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2021, 282
[35]   Cocatalyst free Z-schematic enhanced H2 evolution over LaVO4/BiVO4 composite photocatalyst using Ag as an electron mediator [J].
Veldurthi, Naveen Kumar ;
Eswar, Neerugatti KrishnaRao ;
Singh, Satyapaul A. ;
Madras, Giridhar .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 220 :512-523
[36]   Gradient Self-Doped CuBi2O4 with Highly Improved Charge Separation Efficiency [J].
Wang, Fuxian ;
Septina, Wilman ;
Chemseddine, Abdelkrim ;
Abdi, Fatwa F. ;
Friedrich, Dennis ;
Bogdanoff, Peter ;
van de Krol, Roel ;
Tilley, S. David ;
Berglund, Sean P. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (42) :15094-15103
[37]   Crystal Facet Engineering of Photoelectrodes for Photoelectrochemical Water Splitting [J].
Wang, Songcan ;
Liu, Gang ;
Wang, Lianzhou .
CHEMICAL REVIEWS, 2019, 119 (08) :5192-5247
[38]   Enhanced Piezo-Photoelectric Catalysis with Oriented Carrier Migration in Asymmetric Au-ZnO Nanorod Array [J].
Xiang Deli ;
Liu Zhirong ;
Wu Mengqi ;
Liu Huanhuan ;
Zhang Xiaodi ;
Wang Zhuo ;
Wang Zhong Lin ;
Li Linlin .
SMALL, 2020, 16 (18)
[39]   Porous CuBi2O4 photocathodes with rationally engineered morphology and composition towards high-efficiency photoelectrochemical performance [J].
Xu, Youxun ;
Jian, Jie ;
Li, Fan ;
Liu, Wei ;
Jia, Lichao ;
Wang, Hongqiang .
JOURNAL OF MATERIALS CHEMISTRY A, 2019, 7 (38) :21997-22004
[40]   Biological phosphorus removal in an extended ASM2 model: Roles of extracellular polymeric substances and kinetic modeling [J].
Yang, Shan-Shan ;
Pang, Ji-Wei ;
Guo, Wan-Qian ;
Yang, Xiao-Yin ;
Wu, Zhong-Yang ;
Ren, Nan-Qi ;
Zhao, Zhi-Qing .
BIORESOURCE TECHNOLOGY, 2017, 232 :412-416