Platinum/Nickel Bicarbonate Heterostructures towards Accelerated Hydrogen Evolution under Alkaline Conditions | Zendy

Lao Mengmeng | Zendy; Rui Kun | Zendy; Zhao Guoqiang | Zendy; Cui Peixin | Zendy; Zheng Xusheng | Zendy; Dou Shi Xue | Zendy; Sun Wenping | Zendy

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Platinum/Nickel Bicarbonate Heterostructures towards Accelerated Hydrogen Evolution under Alkaline Conditions

Author(s) -

Lao Mengmeng,

Rui Kun,

Zhao Guoqiang,

Cui Peixin,

Zheng Xusheng,

Dou Shi Xue,

Sun Wenping

Publication year - 2019

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201901010

Subject(s) - bicarbonate , catalysis , platinum , nickel , dissociation (chemistry) , nanomaterials , inorganic chemistry , chemistry , nanoparticle , adsorption , hydrogen , platinum nanoparticles , chemical engineering , materials science , nanotechnology , organic chemistry , engineering

Heterostructured nanomaterials, generally have physicochemical properties that differ from those of the individual components, and thus have potential in a wide range of applications. New platinum (Pt)/nickel bicarbonate (Ni(HCO 3 ) 2 ) heterostructures are designed for an efficient alkaline hydrogen evolution reaction (HER). Notably, the specific and mass activity of Pt in Pt/Ni(HCO 3 ) 2 are substantially improved compared to the bare Pt nanoparticles (NPs). The Ni(HCO 3 ) 2 provides abundant water adsorption/dissociation sites and modulate the electronic structure of Pt, which determine the elementary reaction kinetics of alkaline HER. The Ni(HCO 3 ) 2 nanoplates offer a platform for the uniform dispersion of Pt NPs, ensuring the maximum exposure of active sites. The results demonstrate that, Ni(HCO 3 ) 2 is an effective catalyst promoter for alkaline HER.

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