Highly Loaded Independent Pt0 Atoms on Graphdiyne for pH-General Methanol Oxidation Reaction

Lan Hui, Yurui Xue, Chengyu Xing, Yuxin Liu, Yuncheng Du, Yan Fang, Huidi Yu, Bolong Huang, Yuliang Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)

Abstract

The emergence of platinum-based catalysts promotes efficient methanol oxidation reactions (MOR). However, the defects of such noble metal catalysts are high cost, easy poisoning, and limited commercial applications. The efficient utilization of a low-cost, anti-poisoning catalyst has been expected. Here, it is skillfully used N-doped graphdiyne (NGDY) to prepare a zero-valent platinum atomic catalyst (Pt/NGDY), which shows excellent activity, high pH adaptability, and high CO tolerance for MOR. The Pt/NGDY electrocatalysts for MOR with specific activity 154.2 mA cm−2 (1449.3 mA mgPt−1), 29 mA cm−2 (296 mA mgPt−1) and 22 mA cm−2 (110 mA mgPt−1) in alkaline, acid, and neutral solutions. The specific activity of Pt/NGDY is 9 times larger than Pt/C in alkaline solution. Density functional theory (DFT) calculations confirm that the incorporation of electronegativity nitrogen atoms can increase the high coverage of Pt to achieve a unique atomic state, in which the shared contributions of different Pt sites reach the balance between the electroactivity and the stability to guarantee the higher performance of MOR and durability with superior anti-poisoning effect.

Original languageEnglish
Article number2104991
JournalAdvanced Science
Volume9
Issue number16
DOIs
Publication statusPublished - 3 Jun 2022

Keywords

  • atomic catalysis
  • fuel cells
  • methanol oxidation reactions
  • two dimensional graphdiyne

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • General Chemical Engineering
  • General Materials Science
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • General Engineering
  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Highly Loaded Independent Pt0 Atoms on Graphdiyne for pH-General Methanol Oxidation Reaction'. Together they form a unique fingerprint.

Cite this