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

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

doi:10.1002/anie.201901010

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

Mengmeng Lao, Kun Rui, Guoqiang Zhao, Peixin Cui, Xusheng Zheng, Shi Xue Dou, Wenping Sun

Research output: Contribution to journal › Article › peer-review

223 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	5432-5437
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	58
Issue number	16
DOIs	https://doi.org/10.1002/anie.201901010
State	Published - 8 Apr 2019
Externally published	Yes

Keywords

electrocatalysis
heterostructures
hydrogen evolution reaction
nickel bicarbonate
platinum

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title = "Platinum/Nickel Bicarbonate Heterostructures towards Accelerated Hydrogen Evolution under Alkaline Conditions",

abstract = " 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.",

keywords = "electrocatalysis, heterostructures, hydrogen evolution reaction, nickel bicarbonate, platinum",

author = "Mengmeng Lao and Kun Rui and Guoqiang Zhao and Peixin Cui and Xusheng Zheng and Dou, {Shi Xue} and Wenping Sun",

note = "Publisher Copyright: {\textcopyright} 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2019",

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doi = "10.1002/anie.201901010",

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T1 - Platinum/Nickel Bicarbonate Heterostructures towards Accelerated Hydrogen Evolution under Alkaline Conditions

AU - Lao, Mengmeng

AU - Rui, Kun

AU - Zhao, Guoqiang

AU - Cui, Peixin

AU - Zheng, Xusheng

AU - Dou, Shi Xue

AU - Sun, Wenping

PY - 2019/4/8

Y1 - 2019/4/8

N2 - 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.

AB - 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.

KW - electrocatalysis

KW - heterostructures

KW - hydrogen evolution reaction

KW - nickel bicarbonate

KW - platinum

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JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

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ER -

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

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Keywords

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