The “rolling up” effect of platinum layer obtained on nickel surface by interaction with solution of H2PtCl6 and its electrocatalytic properties in hydrogen evolution reaction during water electrolysis in alkaline medium

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The “rolling up” effect of platinum layer obtained on nickel surface by interaction with solution of H2PtCl6 and its electrocatalytic properties in hydrogen evolution reaction during water electrolysis in alkaline medium. / Kaneva, M.V. ; Tolstoy , V. P. .

в: Nanosystems: Physics, Chemistry, Mathematics, Том 12, № 5, 10.11.2021, стр. 630-633.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{cc5791ca15654a66a5041ba5146fd8b1,

title = "The “rolling up” effect of platinum layer obtained on nickel surface by interaction with solution of H2PtCl6 and its electrocatalytic properties in hydrogen evolution reaction during water electrolysis in alkaline medium",

abstract = "We have shown for the first time that a platinum layer has been obtained on the surface of nickel foil as a result of Galvanic Replacement Reaction (GRR) when interacting with an aqueous solution of H2PtCl6, during drying in air, partially rolling up into incompletely formed microscrolls with a unique 3D morphology. Analysis of the wall of these microscrolls by FESEM, TEM, HR-TEM, and SAED methods showed that they are porous and formed by platinum nanocrystals with sizes of 5 – 10 nm, and their packing density over the wall thickness differs. Nickel foil samples with the layer of platinum microscrolls deposited on their surface exhibit high electrocatalytic activity in hydrogen evolution reaction (HER) during water electrolysis in the alkaline medium. In particular, the overpotential value is 32 mV and the Tafel slope is 32.5 mV/dec for an electrode with the platinum layer with a thickness of 120 – 140 nm.",

keywords = "Platinum, nanocrystals, microscrolls, alvanic replacement reaction, hydrogen evolution reaction, nickel electrode",

author = "M.V. Kaneva and Tolstoy, {V. P.}",

year = "2021",

month = nov,

day = "10",

language = "English",

volume = "12",

pages = "630--633",

journal = "Nanosystems: Physics, Chemistry, Mathematics",

issn = "2220-8054",

publisher = "НИУ ИТМО",

number = "5",

}

RIS

TY - JOUR

T1 - The “rolling up” effect of platinum layer obtained on nickel surface by interaction with solution of H2PtCl6 and its electrocatalytic properties in hydrogen evolution reaction during water electrolysis in alkaline medium

AU - Kaneva, M.V.

AU - Tolstoy , V. P.

PY - 2021/11/10

Y1 - 2021/11/10

N2 - We have shown for the first time that a platinum layer has been obtained on the surface of nickel foil as a result of Galvanic Replacement Reaction (GRR) when interacting with an aqueous solution of H2PtCl6, during drying in air, partially rolling up into incompletely formed microscrolls with a unique 3D morphology. Analysis of the wall of these microscrolls by FESEM, TEM, HR-TEM, and SAED methods showed that they are porous and formed by platinum nanocrystals with sizes of 5 – 10 nm, and their packing density over the wall thickness differs. Nickel foil samples with the layer of platinum microscrolls deposited on their surface exhibit high electrocatalytic activity in hydrogen evolution reaction (HER) during water electrolysis in the alkaline medium. In particular, the overpotential value is 32 mV and the Tafel slope is 32.5 mV/dec for an electrode with the platinum layer with a thickness of 120 – 140 nm.

AB - We have shown for the first time that a platinum layer has been obtained on the surface of nickel foil as a result of Galvanic Replacement Reaction (GRR) when interacting with an aqueous solution of H2PtCl6, during drying in air, partially rolling up into incompletely formed microscrolls with a unique 3D morphology. Analysis of the wall of these microscrolls by FESEM, TEM, HR-TEM, and SAED methods showed that they are porous and formed by platinum nanocrystals with sizes of 5 – 10 nm, and their packing density over the wall thickness differs. Nickel foil samples with the layer of platinum microscrolls deposited on their surface exhibit high electrocatalytic activity in hydrogen evolution reaction (HER) during water electrolysis in the alkaline medium. In particular, the overpotential value is 32 mV and the Tafel slope is 32.5 mV/dec for an electrode with the platinum layer with a thickness of 120 – 140 nm.

KW - Platinum

KW - nanocrystals

KW - microscrolls

KW - alvanic replacement reaction

KW - hydrogen evolution reaction

KW - nickel electrode

UR - http://nanojournal.ifmo.ru/en/articles-2/volume12/12-5/chemistry/paper11/

M3 - Article

VL - 12

SP - 630

EP - 633

JO - Nanosystems: Physics, Chemistry, Mathematics

JF - Nanosystems: Physics, Chemistry, Mathematics

SN - 2220-8054

IS - 5

ER -

ID: 88111587