1
|
Li S, Li J, Zhu H, Zhang L, Sang X, Zhu Z, You W, Zhang F. Development of polyoxometalate-based Ag-H 2biim inorganic-organic hybrid compounds functionalized for the acid electrocatalytic hydrogen evolution reaction. Dalton Trans 2023; 52:15725-15733. [PMID: 37843464 DOI: 10.1039/d3dt02820h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
The electrocatalytic hydrogen evolution reaction (HER) is an ideal method for hydrogen production. Transition metal complex electrocatalysts exhibit poor HER activity due to excessive or weak adsorption of H during the electrochemical reduction of water to molecular hydrogen in acidic environments. Developing specific functional complex materials as desired catalysts is challenging. Here, an electrochemical surface restructuring strategy of polyoxometalate (POM)-modified Ag materials toward the HER with a dramatically decreased overpotential under acidic aqueous conditions is established. We prepared two POM [SiW12O40]4- (SiW12)/[P2W18O62]6- (P2W18)-based Ag-2,2'-biimidazole (H2biim) inorganic-organic hybrid compounds (1 and 2) via the hydrothermal method and these two compounds undergo an electrochemical restructuring process in 0.5 M H2SO4 during the HER, in which Ag nanoparticles are in situ formed with the basic structures of SiW12 and P2W18 being maintained. The activated catalysts (1-AC-RDE and 2-AC-RDE) exhibit good electrocatalytic activity for the HER with good long-term stability, and the required overpotentials at a current density of 10 mA cm-2 are 112 mV (1-AC-RDE) and 91 mV (2-AC-RDE) with Tafel slopes of 77 mV dec-1 and 65 mV dec-1, respectively. The excellent electron-proton storage and transferability of SiW12 and P2W18 may provide a solution for the insufficient capture of H by Ag, leading to an effective self-optimizing behavior and superior acidic HER activity.
Collapse
Affiliation(s)
- Sifan Li
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China.
- Department of Biochemical Engineering, Chaoyang Teachers College, Chaoyang 122000, Liaoning, China
| | - Jiansheng Li
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China.
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, Liaoning, China.
| | - Haotian Zhu
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China.
| | - Liyuan Zhang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China.
| | - Xiaojing Sang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China.
| | - Zaiming Zhu
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China.
| | - Wansheng You
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China.
| | - Fuxiang Zhang
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, Liaoning, China.
| |
Collapse
|
2
|
Litvinova YM, Gayfulin YM, Sukhikh TS, Brylev KA, Mironov YV. Coordination Polymers Based on Rhenium Octahedral Chalcocyanide Cluster Anions and Ag + Cations with Bipyridine Analogs. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227684. [PMID: 36431785 PMCID: PMC9698110 DOI: 10.3390/molecules27227684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/02/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022]
Abstract
A series of six coordination polymers based on octahedral cluster anions [Re6Q8(CN)6]4- (Q = S or Se) and Ag+ cations coordinated by bipyridine analogs were synthesized under solvothermal conditions. Their structures have been characterized by single crystal X-ray diffraction. Compounds 1 and 2 described by the general formula [{Ag(phen)}4Re6Q8(CN)6] (Q = Se (1), S (2); phen = 1,10-phenanthroline) exhibit layered structures assembled into a supramolecular network by CH…π contacts. At the same time, compounds [{Ag(bipym)}2Ag2Re6Se8(CN)6] (bipym = 2,2'-bipyrimidine) (3), [{Ag2(bipy)}Ag2Re6Se8(CN)6]·CH3CN (bipy = 4,4'-bipyridine) (4) and [{Ag(dpbp)}4Re6Q8(CN)6]·2H2O·2CH3CN (Q = Se (5), S (6); dpbp = 4,4'-Di(4-pyridyl)biphenyl)) evince framework structures. In 1, 2, 5 and 6 weak Ag⋯Ag interactions are observed. All the compounds show luminescence in the red region. The luminescence quantum yields and lifetimes were found to be notably higher than those for most of the coordination polymers based on the octahedral rhenium cluster complexes.
Collapse
|
3
|
Synthesis, Structure, Characterizations and Photocatalytic Degradation of a New POM-Based Hybrid Compound: (Hdma)4[Cd(phen)3][W18O54(PO4)2]·2H2O. J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1108-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
4
|
Wang X, Li T, Tian A, Xu N, Zhang R. Introduction of secondary pyridyl-1H-tetrazole derivatives into Keggin–Ag–(1,10-phenanthroline) system for tuning dimensionalities and architectures: assembly and properties. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1213820] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Xiuli Wang
- Department of Chemistry, Liaoning Province Silicon Materials Engineering Technology Research Center, Bohai University, Jinzhou, PR China
| | - Tianjiao Li
- Department of Chemistry, Liaoning Province Silicon Materials Engineering Technology Research Center, Bohai University, Jinzhou, PR China
| | - Aixiang Tian
- Department of Chemistry, Liaoning Province Silicon Materials Engineering Technology Research Center, Bohai University, Jinzhou, PR China
| | - Na Xu
- Department of Chemistry, Liaoning Province Silicon Materials Engineering Technology Research Center, Bohai University, Jinzhou, PR China
| | - Rui Zhang
- Department of Chemistry, Liaoning Province Silicon Materials Engineering Technology Research Center, Bohai University, Jinzhou, PR China
| |
Collapse
|