Enhancing long-term stability of bio-photoelectrochemical cell by defect engineering of a WO_(3-x) photoanode

作     者：Cheng Zhang Xuchao Zheng Yongyue Ning Zihan Li Zhongdong Wu Xiaoyu Feng Gangyong Li Zhongyuan Huang Zongqian Hu Cheng Zhang;Xuchao Zheng;Yongyue Ning;Zihan Li;Zhongdong Wu;Xiaoyu Feng;Gangyong Li;Zhongyuan Huang;Zongqian Hu

作者机构：College of Textiles and ClothingXin Jiang UniversityUrumqi 830046XinjiangChina Beijing Institute of Radiation MedicineBeijing 100850China State Key Laboratory for Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082HunanChina Department of ChemistryNortheast Normal UniversityChangchun 130024JilinChina Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of EducationNational&Local United Engineering Laboratory for Power BatteriesKey Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin ProvinceAnalysis and Testing CenterDepartment of ChemistryNortheast Normal UniversityChangchun 130024JilinChina Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200241China Key Laboratory of Hunan Province for Advanced Carbon-based Functional MaterialsSchool of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang 414006HunanChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第80卷第5期

页      面：584-593,I0013页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 0710[理学-生物学] 081702[工学-化学工艺] 1002[医学-临床医学] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(81871506 and 81301345) 

主　　题：WO_(3) Oxygen vacancy Oxygen reduction reaction Fuel-free Bio-photoelectrochemical cell 

摘      要：Bio-photoelectrochemical cells(BPECs)can further expand the use of conventional biofuel cells for renewable energy,but the poor stability of the photoelectrode still hinders their practical ***,a BPEC capable of long-term operating in a fuel-free model is fabricated by WO3-xphotoanode with oxygen vacancy(Ov)and bilirubin oxidase catalyzed *** construction of Ov on the WO3surface significantly suppresses the dissolution of W species into the electrolyte,and improves the charge separation efficiency and the reaction kinetics during the photoelectrochemical oxygen evolution process,thus enhancing the stability and power output performance of the *** a result,the assembled BPEC can output an open circuit voltage of 0.81 V and deliver a maximum output power of up to 283μW cm^(-2).Impressively,the BPECs maintain 97%of their original power after 36000 s of consecutive discharge under an enclosed *** fuel-free BPEC based on a robust WO3-xphotoanode shows excellent promise for accurate application.