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Hu H, Ma K, Yang Y, Jin N, Zhang L, Qian J, Han L. Ni clusters immobilized on oxygen-rich siloxene nanosheets for efficient electrocatalytic oxygen reduction toward H 2O 2 synthesis. Dalton Trans 2024; 53:4823-4832. [PMID: 38372568 DOI: 10.1039/d3dt04389d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Hydrogen peroxide (H2O2) electrosynthesis via the two-electron oxygen reduction reaction (2e- ORR) represents a green alternative to the energy-intensive anthraquinone process. However, the practical application of this method is limited by the lack of cost-effective and high-performance electrocatalysts. Reported here is a hybrid catalyst composed of nickel (Ni) clusters immobilized onto the surface of two-dimensional siloxene nanosheets (Ni/siloxene), which exhibits excellent efficiency and selectivity in electrocatalytic oxygen reduction to H2O2 in an alkaline medium, demonstrating a standard 2e- pathway with >95% H2O2 selectivity across a wide potential range. Experimental results disclose that the high performance of Ni/siloxene can be traced to a synergy of the Ni clusters and the oxygen-rich surface of siloxene. Density functional theory (DFT) calculations further reveal a weakened interaction between Ni/siloxene and *OOH and the consequently reduced energy barrier for the *OOH protonation toward H2O2 desorption, thus leading to a high 2e- ORR reactivity and selectivity. This work provides a valuable and practical guidance for designing high-performance 2e- ORR electrocatalysts based on the rational engineering of the metal-support interaction.
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Affiliation(s)
- Haihui Hu
- College of Chemistry, Fuzhou University, Fujian 350108, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, China
| | - Ke Ma
- College of Chemistry, Fuzhou University, Fujian 350108, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, China
| | - Yuandong Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
- College of Life and Environmental Science & College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Na Jin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, China
| | - Linjie Zhang
- College of Chemistry, Fuzhou University, Fujian 350108, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, China
| | - Jinjie Qian
- College of Life and Environmental Science & College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Lili Han
- College of Chemistry, Fuzhou University, Fujian 350108, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, China
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Song Z, Chi X, Dong S, Meng B, Yu X, Liu X, Zhou Y, Wang J. Carboxylated Hexagonal Boron Nitride/Graphene Configuration for Electrosynthesis of High-Concentration Neutral Hydrogen Peroxide. Angew Chem Int Ed Engl 2024; 63:e202317267. [PMID: 38158770 DOI: 10.1002/anie.202317267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/19/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
The electrosynthesis of hydrogen peroxide (H2 O2 ) via two-electron (2e- ) oxygen (O2 ) reduction reaction (ORR) has great potential to replace the traditional energy-intensive anthraquinone process, but the design of low-cost and highly active and selective catalysts is greatly challenging for the long-term H2 O2 production under industrial relevant current density, especially under neutral electrolytes. To address this issue, this work constructed a carboxylated hexagonal boron nitride/graphene (h-BN/G) heterojunction on the commercial activated carbon through the coupling of B, N co-doping with surface oxygen groups functionalization. The champion catalyst exhibited a high 2e- ORR selectivity (>95 %), production rate (up to 13.4 mol g-1 h-1 ), and Faradaic efficiency (FE, >95 %). The long-term H2 O2 production under the high current density of 100 mA cm-2 caused the cumulative concentration as high as 2.1 wt %. The combination of in situ Raman spectra and theoretical calculation indicated that the carboxylated h-BN/G configuration promotes the adsorption of O2 and the stabilization of the key intermediates, allowing a low energy barrier for the rate-determining step of HOOH* release from the active site and thus improving the 2e- ORR performance. The fast dye degradation by using this electrochemical synthesized H2 O2 further illustrated the promising practical application.
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Affiliation(s)
- Zhixin Song
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiao Chi
- Department of Physics, National University of Singapore, Singapore, 117576, Singapore
| | - Shu Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Biao Meng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiaojiang Yu
- Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore, 117603, Singapore
| | - Xiaoling Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
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Wu JQ, Zhao ZH, Hua YW, Wu YL, Ye SY, Qian JT, Li ML, Zhu LW, Yan Z, Cao X. Self-Reconstructed Two-Dimensional Cluster-Based Co-Organic Layer Heterojunctions for Enhanced Oxygen Evolution Reactions. Inorg Chem 2023; 62:15641-15650. [PMID: 37690055 DOI: 10.1021/acs.inorgchem.3c02332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
When it comes to an efficient catalytic oxygen evolution reaction (OER) in the production of renewable energy and chemicals, the construction of heterogeneous structures is crucial to break the linear scalar relationship of a single catalyst. This heterogeneous structure construction helps creatively achieve high activity and stability. However, the synthesis process of heterogeneous crystalline materials is often complex and challenging to capture and reproduce, which limits their application. Here, the dynamic process of structural changes in Co-MOFs in alkali was captured by in situ powder X-ray diffraction, FT-IR spectroscopy, and Raman spectroscopy, and several self-reconfigured MOF heterogeneous materials with different structures were stably isolated. The created β-Co(OH)2/Co-MOF heterojunction structure facilitates rapid mass-charge transfer and exposure of active sites, which significantly enhanced OER activity. Experimental results show that this heterogeneous structure achieves a low overpotential of 333 mV at 10 mA cm-2. The findings provide new insights and directions for the search for highly reactive cobalt-based MOFs for sustainable energy technologies.
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Affiliation(s)
- Jia-Qian Wu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, P.R. China
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Zi-Hao Zhao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Yi-Wei Hua
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Ya-Ling Wu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Si-Yuan Ye
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Jin-Tao Qian
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Meng-Li Li
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Lian-Wen Zhu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Zheng Yan
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
| | - Xuebo Cao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P.R. China
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