Projects per year
Abstract
One of the obvious merits of graphitic carbon nitride (g-CN), which has been considered a promising candidate for photoelectrochemical (PEC) applications, is its metal-free nature; but it suffers from low PEC performance. Metal-containing semiconductors generally exhibit high PEC performance, but their applications are restricted by their high cost. In this study, we put forward for the first time a pseudo-metal-free strategy to combine the advantages of metal-free g-CN and metal-containing semiconductor materials with high PEC performance. A new g-CN precursor of sulfur-rich poly thiourea formaldehyde (PTF) is adopted to react with part of the fluorine-doped tin dioxide (FTO) layer deposited on glass in a closed reaction system at high temperature to in situ form g-CN/SnS2 composite films which are fabricated by using a multiple-step thermal vapor condensation (MSTVC) approach. It is noticeable that metal-containing compounds are not added to the precursor; the metal element is from the FTO layer which is almost indispensable for fabricating photoelectrodes. The photocurrent density of the as-prepared g-CN/SnS2 composite photoelectrode is as high as 844.6 μA cm−2 at 1.23 V vs. RHE under AM 1.5G illumination without sacrificial agents. This novel pseudo-metal-free strategy opens a new field to stimulate further studies on fabricating composite photoelectrodes.
Original language | English |
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Pages (from-to) | 12767-12773 |
Journal | Journal of Materials Chemistry A |
Volume | 8 |
Issue number | 25 |
Online published | 3 Jun 2020 |
DOIs | |
Publication status | Published - 7 Jul 2020 |
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Dive into the research topics of 'A pseudo-metal-free strategy for constructing high performance photoelectrodes'. Together they form a unique fingerprint.Projects
- 2 Finished
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GRF: A Computational Study on the Mechanisms of Nonmetal Doping and Doping-induced Stability Enhancement of Graphitic Carbon Nitride Nanostructures for Photoelectrochemical Water Splitting
ZHANG, R. (Principal Investigator / Project Coordinator)
1/01/19 → 9/12/22
Project: Research
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GRF: Exciton Dynamics and Photocatalytic Degradation Mechanism of Graphitic Carbon Nitride Nanostructures in Water Splitting
ZHANG, R. (Principal Investigator / Project Coordinator)
1/01/17 → 29/11/21
Project: Research