Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water Electrolysis
MoS2 with 2D structure shows efficient hydrogen evolution reaction (HER) performance because undercoordinated Mo–S edges have ideal hydrogen adsorption free energy. MoS2 usually does not satisfy the bifunctional catalysts because of the poor intrinsic oxygen evolution reaction (OER) catalytic activi...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-11-01
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| Series: | Small Structures |
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| Online Access: | https://doi.org/10.1002/sstr.202300175 |
| _version_ | 1797504907208556544 |
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| author | Wenxian Li Zulin Sun Riyue Ge Jiancheng Li Yiran Li Julie M. Cairney Rongkun Zheng Ying Li Sean Li Qian Li Bin Liu |
| author_facet | Wenxian Li Zulin Sun Riyue Ge Jiancheng Li Yiran Li Julie M. Cairney Rongkun Zheng Ying Li Sean Li Qian Li Bin Liu |
| author_sort | Wenxian Li |
| collection | DOAJ |
| description | MoS2 with 2D structure shows efficient hydrogen evolution reaction (HER) performance because undercoordinated Mo–S edges have ideal hydrogen adsorption free energy. MoS2 usually does not satisfy the bifunctional catalysts because of the poor intrinsic oxygen evolution reaction (OER) catalytic activity. Herein, it is proposed to construct heterostructure with OER active components to induce efficient bifunctional catalytic activity along with heteroatom doping to modify the electronic structure to optimize the adsorption and desorption capabilities of reaction intermediates. La‐doped Ni3S2/MoS2 grown on nickel foam (La‐NMS@NF) is synthesized as bifunctional catalyst taking advantage of the excellent OER performance of Ni3S2. La‐NMS@NF evolves into nanoflower‐like structures with the addition of La dopant, which provides abundant pore channels to facilitate mass transfer and exposure of active sites. Density functional calculations reveal that the La‐doped Ni3S2/MoS2 heterointerface can optimize the water adsorption and H* adsorption/desorption, improving the HER performance. The La‐NMS@NF exhibits an overpotential of 154 and 300 mV for HER and OER at 100 mA cm−2 in 1.0 m KOH. Herein, a heteroatom‐driven heterostructure activation strategy for electron rearrangement and structural evolution in electrocatalysts to decrease energy consumption in overall water splitting is demonstrated. |
| first_indexed | 2024-03-10T04:11:04Z |
| format | Article |
| id | doaj.art-55d425c19b574344a47d1536fa842077 |
| institution | Directory Open Access Journal |
| issn | 2688-4062 |
| language | English |
| last_indexed | 2024-03-10T04:11:04Z |
| publishDate | 2023-11-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Structures |
| spelling | doaj.art-55d425c19b574344a47d1536fa8420772023-11-23T08:10:45ZengWiley-VCHSmall Structures2688-40622023-11-01411n/an/a10.1002/sstr.202300175Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water ElectrolysisWenxian Li0Zulin Sun1Riyue Ge2Jiancheng Li3Yiran Li4Julie M. Cairney5Rongkun Zheng6Ying Li7Sean Li8Qian Li9Bin Liu10School of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaSchool of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaSchool of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaSchool of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaSchool of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaAustralian Centre for Microscopy and Microanalysis The University of Sydney Sydney NSW 2006 AustraliaSchool of Physics University of Sydney Sydney NSW 2006 AustraliaSchool of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaSchool of Materials Science and Engineering University of New South Wales Sydney NSW 2052 AustraliaSchool of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaSchool of Materials Science and Engineering Shanghai University Shanghai 200444 ChinaMoS2 with 2D structure shows efficient hydrogen evolution reaction (HER) performance because undercoordinated Mo–S edges have ideal hydrogen adsorption free energy. MoS2 usually does not satisfy the bifunctional catalysts because of the poor intrinsic oxygen evolution reaction (OER) catalytic activity. Herein, it is proposed to construct heterostructure with OER active components to induce efficient bifunctional catalytic activity along with heteroatom doping to modify the electronic structure to optimize the adsorption and desorption capabilities of reaction intermediates. La‐doped Ni3S2/MoS2 grown on nickel foam (La‐NMS@NF) is synthesized as bifunctional catalyst taking advantage of the excellent OER performance of Ni3S2. La‐NMS@NF evolves into nanoflower‐like structures with the addition of La dopant, which provides abundant pore channels to facilitate mass transfer and exposure of active sites. Density functional calculations reveal that the La‐doped Ni3S2/MoS2 heterointerface can optimize the water adsorption and H* adsorption/desorption, improving the HER performance. The La‐NMS@NF exhibits an overpotential of 154 and 300 mV for HER and OER at 100 mA cm−2 in 1.0 m KOH. Herein, a heteroatom‐driven heterostructure activation strategy for electron rearrangement and structural evolution in electrocatalysts to decrease energy consumption in overall water splitting is demonstrated.https://doi.org/10.1002/sstr.202300175elements dopingheterostructuresMoS2overall water splitting |
| spellingShingle | Wenxian Li Zulin Sun Riyue Ge Jiancheng Li Yiran Li Julie M. Cairney Rongkun Zheng Ying Li Sean Li Qian Li Bin Liu Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water Electrolysis Small Structures elements doping heterostructures MoS2 overall water splitting |
| title | Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water Electrolysis |
| title_full | Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water Electrolysis |
| title_fullStr | Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water Electrolysis |
| title_full_unstemmed | Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water Electrolysis |
| title_short | Nanoarchitectonics of La‐Doped Ni3S2/MoS2 Hetetostructural Electrocatalysts for Water Electrolysis |
| title_sort | nanoarchitectonics of la doped ni3s2 mos2 hetetostructural electrocatalysts for water electrolysis |
| topic | elements doping heterostructures MoS2 overall water splitting |
| url | https://doi.org/10.1002/sstr.202300175 |
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