Hydride‐Containing Pt‐doped Cu‐rich Nanoclusters: Synthesis, Structure, and Electrocatalytic Hydrogen Evolution - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemistry - A European Journal Année : 2024

Hydride‐Containing Pt‐doped Cu‐rich Nanoclusters: Synthesis, Structure, and Electrocatalytic Hydrogen Evolution

Hao Liang
Yongsung Jo
  • Fonction : Auteur
Jian-Hong Liao
Xiaoping Wang
Samia Kahlal
Qi Wang
Woojun Choi
Dongil Lee

Résumé

A structurally precise hydride-containing Pt-doped Cu-rich nanocluster [PtH Cu {S P(O Pr) } (CCPh) ] (1) has been synthesized. It consists of a bicapped icosahedral Cu cage that encapsulates a linear PtH unit. Upon the addition of two equivalents of CF COOH to 1, two hydrido clusters are isolated. These clusters are [PtHCu {S P(O Pr) } (CCPh) ] (2), which is a vertex-missing Cu cuboctahedron encaging a PtH moiety, and [PtH Cu {S P(O Pr) } (CCPh) ] (3), a distorted 3,3,4,4,4-pentacapped trigonal prismatic Cu cage enclosing a PtH 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 ), a Tafel slope of 39 mV dec , and consistent HER activity throughout 3000 cycles in 0.5 M H SO . 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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jeudi 27 juin 2024
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Année Mois Jours
Avant la publication
jeudi 27 juin 2024
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jeudi 27 juin 2024
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Dates et versions

hal-04395067 , version 1 (12-03-2024)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Rhone P. Brocha Silalahi, Hao Liang, Yongsung Jo, Jian-Hong Liao, Tzu-Hao Chiu, et al.. Hydride‐Containing Pt‐doped Cu‐rich Nanoclusters: Synthesis, Structure, and Electrocatalytic Hydrogen Evolution. Chemistry - A European Journal, 2024, 30 (13), ⟨10.1002/chem.202303755⟩. ⟨hal-04395067⟩
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