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Brocha Silalahi RP, Liang H, Jo Y, Liao JH, Chiu TH, Wu YY, Wang X, Kahlal S, Wang Q, Choi W, Lee D, Saillard JY, Liu CW. Hydride-Containing Pt-doped Cu-rich Nanoclusters: Synthesis, Structure, and Electrocatalytic Hydrogen Evolution. Chemistry 2023:e202303755. [PMID: 38149882 DOI: 10.1002/chem.202303755] [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: 11/11/2023] [Revised: 12/26/2023] [Accepted: 12/27/2023] [Indexed: 12/28/2023]
Abstract
A structurally precise hydride-containing Pt-doped Cu-rich nanocluster [PtH2 Cu14 {S2 P(Oi Pr)2 }6 (CCPh)6 ] (1) has been synthesized. It consists of a bicapped icosahedral Cu14 cage that encapsulates a linear PtH2 unit. Upon the addition of two equivalents of CF3 COOH to 1, two hydrido clusters are isolated. These clusters are [PtHCu11 {S2 P(Oi Pr)2 }6 (CCPh)4 ] (2), which is a vertex-missing Cu11 cuboctahedron encaging a PtH moiety, and [PtH2 Cu11 {S2 P(Oi Pr)2 }6 (CCPh)3 ] (3), a distorted 3,3,4,4,4-pentacapped trigonal prismatic Cu11 cage enclosing a PtH2 unit. The electronic structure of 2, analyzed by Density Functional Theory, is a 2e superatom. The electrocatalytic activities of 1-3 for hydrogen evolution reaction (HER) were compared. Notably, Cluster 2 exhibited an exceptionally excellent HER activity within metal nanoclusters, with an onset potential of -0.03 V (at 10 mA cm-2 ), a Tafel slope of 39 mV dec-1 , and consistent HER activity throughout 3000 cycles in 0.5 M H2 SO4 . Our study suggests that the accessible central Pt site plays a crucial role in the remarkable HER activity and may provide valuable insights for establishing correlations between catalyst structure and HER activity.
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Affiliation(s)
- Rhone P Brocha Silalahi
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien, 97401, Taiwan R. O. C
| | - Hao Liang
- Univ Rennes CNRS, ISCR-UMR 6226, F-35000, Rennes, France
| | - Yongsung Jo
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien, 97401, Taiwan R. O. C
| | - Tzu-Hao Chiu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien, 97401, Taiwan R. O. C
| | - Ying-Yann Wu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien, 97401, Taiwan R. O. C
| | - Xiaoping Wang
- Neutron Scattering Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, United States
| | - Samia Kahlal
- Univ Rennes CNRS, ISCR-UMR 6226, F-35000, Rennes, France
| | - Qi Wang
- Univ Rennes CNRS, ISCR-UMR 6226, F-35000, Rennes, France
| | - Woojun Choi
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dongil Lee
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | | | - C W Liu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien, 97401, Taiwan R. O. C
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Silalahi RPB, Chiu TH, Liang H, Kahlal S, Saillard JY, Liu CW. A heteroleptic fused bi-cuboctahedral Cu21S2 cluster. Chem Commun (Camb) 2023. [PMID: 37464924 DOI: 10.1039/d3cc02936k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
A new dicationic cluster, [Cu21S2{S2CNnBu2}9(C2Ph)6]2+, where the Cu21S2 kernel consists of two S@Cu12 cuboctahedra sharing a triangular Cu3 face is reported. Its waist part is bridged by three dithiocarbamate ligands, each in a hexaconnective, hexametallic (μ3, μ3) coordination pattern, an unprecedented feature in Cu nanocluster chemistry.
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Affiliation(s)
- Rhone P Brocha Silalahi
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien 97401, Taiwan, Republic of China.
| | - Tzu-Hao Chiu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien 97401, Taiwan, Republic of China.
| | - Hao Liang
- Univ Rennes, CNRS, ISCR-UMR 6226, Rennes F-35000, France
| | - Samia Kahlal
- Univ Rennes, CNRS, ISCR-UMR 6226, Rennes F-35000, France
| | | | - C W Liu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien 97401, Taiwan, Republic of China.
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