title: Photoelectrodes based upon Mo:BiVO4 inverse opals for photoelectrochemical water splitting.
abstract: BiVO4 has been regarded as a promising material for photoelectrochemical water splitting, but it suffers from a major challenge on charge collection and utilization. In order to meet this challenge, we design a nanoengineered three-dimensional (3D) ordered macro-mesoporous architecture (a kind of inverse opal) of Mo:BiVO4 through a controllable colloidal crystal template method with the help of a sandwich solution infiltration method and adjustable post-heating time. Within expectation, a superior photocurrent density is achieved in return for this design. This enhancement originates primarily from effective charge collection and utilization according to the analysis of electrochemical impedance spectroscopy and so on. All the results highlight the great significance of the 3D ordered macro-mesoporous architecture as a promising photoelectrode model for the application in solar conversion. The cooperating amplification effects of nanoengineering from composition regulation and morphology innovation are helpful for creating more purpose-designed photoelectrodes with highly efficient performance.
authors.affiliation: Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science & Technology of China , Hefei, Anhui 230026, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhou
authors.forename: Jian
authors.initials: J
authors.lastname: Bao
authors.forename: Yang
authors.initials: Y
authors.lastname: Xu
authors.forename: Jiajia
authors.initials: J
authors.lastname: Zhang
authors.forename: Junfeng
authors.initials: J
authors.lastname: Xie
authors.forename: Meili
authors.initials: M
authors.lastname: Guan
authors.forename: Chengliang
authors.initials: C
authors.lastname: Wang
authors.forename: Liaoyong
authors.initials: L
authors.lastname: Wen
authors.forename: Yong
authors.initials: Y
authors.lastname: Lei
authors.forename: Yi
authors.initials: Y
authors.lastname: Xie