WO3 Mesoporous Nanobelts towards Efficient Photoelectrocatalysts for Water Splitting

In the present work, we reported the exploration of photoanodes based on mesoporous WO3 nanobelts through a foaming‐assisted electrospinning strategy. The introduced polyvinylpyrrolidone in the raw solutions played a determining role on the formation of the nanobelts, enabling their fabrication in a...

Full description

Saved in:
Bibliographic Details
Published inChemElectroChem Vol. 5; no. 2; pp. 322 - 327
Main Authors Song, Kai, Gao, Fengmei, Yang, Weiyou, Wang, Enyan, Wang, Zhenxia, Hou, Huilin
Format Journal Article
LanguageEnglish
Published Weinheim John Wiley & Sons, Inc 01.01.2018
Subjects
electrospinning
Foaming
nanobelts
Nanofibers
Photoelectric effect
Photoelectric emission
Polyvinylpyrrolidone
Silver chloride
Tungsten oxides
Water splitting
WO3
Online AccessGet full text

Cover

More Information
Summary:In the present work, we reported the exploration of photoanodes based on mesoporous WO3 nanobelts through a foaming‐assisted electrospinning strategy. The introduced polyvinylpyrrolidone in the raw solutions played a determining role on the formation of the nanobelts, enabling their fabrication in a controlled manner. The as‐fabricated mesoporous WO3 nanobelts exhibited a photocurrent density of 311 μA cm−2 and incident photon‐to‐current efficiency of 6.5 % at 350 nm and 1.2 V vs. Ag/AgCl under simulated sunlight illumination, which are 2.3 times to that of cylindrical nanofibers. Furthermore, our discovery confirmed that, in comparison to the conventionally cylindrical nanofibers, the nanobelts with a rectangular cross section could be a better candidate for constructing photoanodes with enhanced photoelectrochemical efficiency and stability. Time to split: The efficient photoelectrocatalysis of WO3 mesoporous nanobelts is explored, demonstrating enhanced photoelectrochemical activity for water splitting.
ISSN:2196-0216
2196-0216
DOI:10.1002/celc.201700993