• 文献标题:   Photoelectrochemical water splitting by a novel design of photo-anode: inverse opal-like UiO-66 sensitized by Pd and decorated with S,N graphene QDs
  • 文献类型:   Article
  • 作  者:   ZARGAZI M, ENTEZARI MH
  • 作者关键词:   uio66 film, pec water splitting, s n gqd, plasmonic pd, photoelectrode
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:  
  • 被引频次:   6
  • DOI:   10.1016/j.electacta.2021.138926 EA JUL 2021
  • 出版年:   2021

▎ 摘  要

UiO-66 film has been interested for photoelectrodes in water splitting, but it has major problems such as inappropriate band gap and resistant behavior under bias potential. An inverse opal structure was synthesized for the first time and sensitized by plasmonic nanoparticles (Pd) and strategically decorated with S,N graphene quantum dots (S,N GQDs). Consequently, the UiO-66/Pd/S,N GQDs photoanode has indicated a remarkable photocurrent density of approximate to 300 mu A cm(-2) at 1.23 V versus RHE under AM 1.5G. Applied bias photon-to-current efficiency (ABPE) is 0.66% at 0.65 V versus RHE and absorbed photon-to-electron conversion efficiency (APCE) is 19.7% under visible light at 500 nm. This high efficiency originated from the engineering of band gap and effective reduction of charge transfer resistance of MOF with the incorporation of Pd nanoparticles. The combination of morphology and composition regulatory of UiO-66 films has key roles in the fabrication of more desirable designing photoelectrodes for photoelectrochemical (PEC) water splitting. (C) 2021 Elsevier Ltd. All rights reserved.