Metal support effects in electrocatalysis at hexagonal boron nitride

Dan Qing Liu, Binglin Tao, Hong Cheng Ruan, Cameron L. Bentley, Patrick R. Unwin

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)

Abstract

A scanning electrochemical droplet cell technique has been employed to screen the intrinsic electrocatalytic hydrogen evolution reaction (HER) activity of hexagonal boron nitride (h-BN) nanosheets supported on different metal substrates (Cu and Au). Local (spatially-resolved) voltammetry and Tafel analysis reveal that electronic interaction with the underlying metal substrate plays a significant role in modulating the electrocatalytic activity of h-BN, with Au-supported h-BN exhibiting significantly enhanced HER charge-transfer kinetics (exchange current is ca. two orders of magnitude larger) compared to Cu-supported h-BN, making the former material the superior support in a catalytic sense.

Original languageEnglish
Pages (from-to)628-631
Number of pages4
JournalChemical Communications
Volume55
Issue number5
DOIs
Publication statusPublished - 16 Jan 2019
Externally publishedYes

Cite this