Hierarchical concave layered triangular PtCu alloy nanostructures: Rational integration of dendritic nanostructures for efficient formic acid electrooxidation

The rational construction of multi-dimensional layered noble metal nanostructures is a great challenge since noble metals are not layer-structured materials. Herein, we report a one-pot hydrothermal synthetic method for PtCu hierarchical concave layered triangular (HCLT) nanostructures using dl-carnitine, KI, poly(vinylpyrrolidone), CuCl2, and H2PtCl6. The PtCu HCLT nanostructure is comprised of multilayered triangular dendrites. Its layer number is tunable by changing dl-carnitine concentrations, and the concavity/convexity of the PtCu triangle nanostructures is tunable by changing the H2PtCl6/CuCl2 ratio or KI concentrations. Hierarchical trigonal bipyramid nanoframes are also obtained under certain conditions. Because of its advantageous nanostructure and bimetallic synergetic effect, the obtained PtCu HCLT nanostructure exhibits enhanced electrocatalytic activity and prolonged stability to formic acid oxidation compared to commercial Pt black, Pd/C and some other nanostructures. © 2018 The Royal Society of Chemistry.

Авторы
Wu F.1, 2 , Lai J.1 , Zhang L.1 , Niu W.1 , Lou B.1 , Luque R. 1, 3, 4 , Xu G.1
Редакторы
-
Журнал
Издательство
Royal Society of Chemistry
Номер выпуска
19
Язык
Английский
Страницы
9369-9375
Статус
Опубликовано
Подразделение
-
Номер
-
Том
10
Год
2018
Организации
  • 1 State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
  • 2 University of Science and Technology of China, Hefei, China
  • 3 Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3) Km 396, Córdoba, Spain
  • 4 Peoples Friendship University of Russia, RUDN University, 6 Miklukho-Maklaya str., Moscow, 117198, Russian Federation
Ключевые слова
Binary alloys; Chlorine compounds; Copper compounds; Electrooxidation; Formic acid; Precious metals; Dendritic nanostructures; Electrocatalytic activity; Formic acid electrooxidation; Formic acid oxidation; Layer structured materials; Metal nanostructure; Poly(vinyl pyrrolidone); Rational construction; Nanostructures
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/6648/