- Title
- Room-temperature photocatalytic methanol fuel cell based on one-dimension semiconductor photoanode: intrinsic mechanism of photogenerated charge separation
- Creator
- Zhang, Yu; Sun, Weining; Qian, Bingzhi; Wang, Yanming; Wang, Baoxin; Li, Shuo; Liu, Daliang; Feng, Daming; Ma, Tianyi; Song, Xi-Ming
- Relation
- Electrochimica Acta Vol. 318, p. 413-421
- Publisher Link
- http://dx.doi.org/10.1016/j.electacta.2019.06.099
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2019
- Description
- We report a photocatalytic methanol fuel cell (PMFC) based on one-dimension TiO₂, ZnO and α-Fe₂O₃ photoanode for efficient methanol oxidation reaction at room temperature. Electro-chemical analysis along with Mott-Schottky (MS) equation and cyclic voltammetry (CV) revealed thermodynamic feasibility of charge transfer and methanol oxidation in the system. Time-resolved surface photovoltage (SPV) transient gave a dynamic information of photogenerated charge carriers, which is related to types of materials, sample thickness and light intensity. The ZnO-based PMFC got the maximum short-circuit current of 1.82 mA cm-2 and TiO₂-based fuel cell had an open-circuit voltage of 1.34 V. This study opens an available field to develop power cells taking advantage of both chemical energy and solar energy.
- Subject
- photoelectrochemistry; methanol fuel cell; energy band level; surface photovoltage; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1411572
- Identifier
- uon:36354
- Identifier
- ISSN:0013-4686
- Rights
- © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
- Language
- eng
- Full Text
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Goal 7: Ensure access to affordable, reliable, sustainable and modern energy
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|---|---|---|---|---|---|---|---|
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