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- Publisher Website: 10.1016/j.heliyon.2024.e31108
- Scopus: eid_2-s2.0-85193500330
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Article: In-situ fabrication of self-supported cobalt molybdenum sulphide on carbon paper for bifunctional water electrocatalysis
Title | In-situ fabrication of self-supported cobalt molybdenum sulphide on carbon paper for bifunctional water electrocatalysis |
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Authors | |
Keywords | Aerosol assisted chemical vapour deposition CoMoS phase Electrochemical water splitting Heterostructure coupling Synergistic effect |
Issue Date | 10-May-2024 |
Publisher | Elsevier |
Citation | Heliyon, 2024, v. 10, n. 10 How to Cite? |
Abstract | The fabrication of highly efficient yet stable noble-metal-free bifunctional electrocatalysts that can simultaneously catalyse both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) remains challenging. Herein, we employ the heterostructure coupling strategy, showcasing an aerosol-assisted chemical vapour deposition (AACVD) aided synthetic approach for the in-situ growth of cobalt molybdenum sulphide nanocomposites on carbon paper (CoMoS@CP) as a bifunctional electrocatalyst. The AACVD allows the rational incorporation of Co in the Mo–S binary structure, which modulates the morphology of CoMoS@CP, resulting in enhanced HER activity (ŋ10 = 171 mV in acidic and ŋ10 = 177 mV in alkaline conditions). Furthermore, the CoS2 species in the CoMoS@CP ternary structure extends the OER capability, yielding an ŋ100 of 455 mV in 1 M KOH. Lastly, we found that the synergistic effect of the Co–Mo–S interface elevates the bifunctional performance beyond binary counterparts, achieving a low cell voltage (1.70 V at 10 mA cm−2) in overall water splitting test and outstanding catalytic stability (∼90 % performance retention after 50-/30-h continuous operation at 10 and 100 mA cm−2, respectively). This work has opened up a new methodology for the controllable synthesis of self-supported transition metal-based electrocatalysts for applications in overall water splitting. |
Persistent Identifier | http://hdl.handle.net/10722/347935 |
DC Field | Value | Language |
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dc.contributor.author | Yao, Yuting | - |
dc.contributor.author | Liu, Yuhan | - |
dc.contributor.author | Shin, Juhun | - |
dc.contributor.author | Cai, Shenglin | - |
dc.contributor.author | Zhang, Xinyue | - |
dc.contributor.author | Guo, Zhengxiao | - |
dc.contributor.author | Blackman, Christopher S | - |
dc.date.accessioned | 2024-10-03T00:30:35Z | - |
dc.date.available | 2024-10-03T00:30:35Z | - |
dc.date.issued | 2024-05-10 | - |
dc.identifier.citation | Heliyon, 2024, v. 10, n. 10 | - |
dc.identifier.uri | http://hdl.handle.net/10722/347935 | - |
dc.description.abstract | The fabrication of highly efficient yet stable noble-metal-free bifunctional electrocatalysts that can simultaneously catalyse both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) remains challenging. Herein, we employ the heterostructure coupling strategy, showcasing an aerosol-assisted chemical vapour deposition (AACVD) aided synthetic approach for the in-situ growth of cobalt molybdenum sulphide nanocomposites on carbon paper (CoMoS@CP) as a bifunctional electrocatalyst. The AACVD allows the rational incorporation of Co in the Mo–S binary structure, which modulates the morphology of CoMoS@CP, resulting in enhanced HER activity (ŋ10 = 171 mV in acidic and ŋ10 = 177 mV in alkaline conditions). Furthermore, the CoS2 species in the CoMoS@CP ternary structure extends the OER capability, yielding an ŋ100 of 455 mV in 1 M KOH. Lastly, we found that the synergistic effect of the Co–Mo–S interface elevates the bifunctional performance beyond binary counterparts, achieving a low cell voltage (1.70 V at 10 mA cm−2) in overall water splitting test and outstanding catalytic stability (∼90 % performance retention after 50-/30-h continuous operation at 10 and 100 mA cm−2, respectively). This work has opened up a new methodology for the controllable synthesis of self-supported transition metal-based electrocatalysts for applications in overall water splitting. | - |
dc.language | eng | - |
dc.publisher | Elsevier | - |
dc.relation.ispartof | Heliyon | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Aerosol assisted chemical vapour deposition | - |
dc.subject | CoMoS phase | - |
dc.subject | Electrochemical water splitting | - |
dc.subject | Heterostructure coupling | - |
dc.subject | Synergistic effect | - |
dc.title | In-situ fabrication of self-supported cobalt molybdenum sulphide on carbon paper for bifunctional water electrocatalysis | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.heliyon.2024.e31108 | - |
dc.identifier.scopus | eid_2-s2.0-85193500330 | - |
dc.identifier.volume | 10 | - |
dc.identifier.issue | 10 | - |
dc.identifier.eissn | 2405-8440 | - |
dc.identifier.issnl | 2405-8440 | - |