Turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction
Abstract Low-dimensional nanocrystals with controllable defects or strain modifications are newly emerging active electrocatalysts for hydrogen-energy conversion and utilization; however, a crucial challenge remains in insufficient stability due to spontaneous structural degradation and strain relax...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-09-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-40972-w |
| _version_ | 1797558391623647232 |
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| author | Jialun Gu Lanxi Li Youneng Xie Bo Chen Fubo Tian Yanju Wang Jing Zhong Junda Shen Jian Lu |
| author_facet | Jialun Gu Lanxi Li Youneng Xie Bo Chen Fubo Tian Yanju Wang Jing Zhong Junda Shen Jian Lu |
| author_sort | Jialun Gu |
| collection | DOAJ |
| description | Abstract Low-dimensional nanocrystals with controllable defects or strain modifications are newly emerging active electrocatalysts for hydrogen-energy conversion and utilization; however, a crucial challenge remains in insufficient stability due to spontaneous structural degradation and strain relaxation. Here we report a Turing structuring strategy to activate and stabilize superthin metal nanosheets by incorporating high-density nanotwins. Turing configuration, realized by constrained orientation attachment of nanograins, yields intrinsically stable nanotwin network and straining effects, which synergistically reduce the energy barrier of water dissociation and optimize the hydrogen adsorption free energy for hydrogen evolution reaction. Turing PtNiNb nanocatalyst achieves 23.5 and 3.1 times increase in mass activity and stability index, respectively, compared against commercial 20% Pt/C. The Turing PtNiNb-based anion-exchange-membrane water electrolyser with a low Pt mass loading of 0.05 mg cm−2 demonstrates at least 500 h stability at 1000 mA cm− 2, disclosing the stable catalysis. Besides, this new paradigm can be extended to Ir/Pd/Ag-based nanocatalysts, illustrating the universality of Turing-type catalysts. |
| first_indexed | 2024-03-10T17:30:48Z |
| format | Article |
| id | doaj.art-916b08555cee4b0bb6f65de823c7efc6 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-10T17:30:48Z |
| publishDate | 2023-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-916b08555cee4b0bb6f65de823c7efc62023-11-20T10:02:43ZengNature PortfolioNature Communications2041-17232023-09-0114111310.1038/s41467-023-40972-wTuring structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reactionJialun Gu0Lanxi Li1Youneng Xie2Bo Chen3Fubo Tian4Yanju Wang5Jing Zhong6Junda Shen7Jian Lu8Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials ScienceCentre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials ScienceCentre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials ScienceDepartment of Chemistry, City University of Hong KongState Key Laboratory of Superhard Materials, College of Physics, Jilin UniversityCentre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials ScienceDepartment of Materials Science and Engineering, City University of Hong KongDepartment of Materials Science and Engineering, City University of Hong KongCentre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials ScienceAbstract Low-dimensional nanocrystals with controllable defects or strain modifications are newly emerging active electrocatalysts for hydrogen-energy conversion and utilization; however, a crucial challenge remains in insufficient stability due to spontaneous structural degradation and strain relaxation. Here we report a Turing structuring strategy to activate and stabilize superthin metal nanosheets by incorporating high-density nanotwins. Turing configuration, realized by constrained orientation attachment of nanograins, yields intrinsically stable nanotwin network and straining effects, which synergistically reduce the energy barrier of water dissociation and optimize the hydrogen adsorption free energy for hydrogen evolution reaction. Turing PtNiNb nanocatalyst achieves 23.5 and 3.1 times increase in mass activity and stability index, respectively, compared against commercial 20% Pt/C. The Turing PtNiNb-based anion-exchange-membrane water electrolyser with a low Pt mass loading of 0.05 mg cm−2 demonstrates at least 500 h stability at 1000 mA cm− 2, disclosing the stable catalysis. Besides, this new paradigm can be extended to Ir/Pd/Ag-based nanocatalysts, illustrating the universality of Turing-type catalysts.https://doi.org/10.1038/s41467-023-40972-w |
| spellingShingle | Jialun Gu Lanxi Li Youneng Xie Bo Chen Fubo Tian Yanju Wang Jing Zhong Junda Shen Jian Lu Turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction Nature Communications |
| title | Turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction |
| title_full | Turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction |
| title_fullStr | Turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction |
| title_full_unstemmed | Turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction |
| title_short | Turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction |
| title_sort | turing structuring with multiple nanotwins to engineer efficient and stable catalysts for hydrogen evolution reaction |
| url | https://doi.org/10.1038/s41467-023-40972-w |
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