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Boron radicals identified as the source of the unexpected catalysis by boron nitride nanosheets

journal contribution
posted on 26.02.2019, 00:00 authored by Zhen Liu, Jingquan Liu, Srikanth MatetiSrikanth Mateti, Chunmei Zhang, Yingxin Zhang, Lifen Chen, Jianmei Wang, Hongbin Wang, Egan DoevenEgan Doeven, Paul FrancisPaul Francis, Colin BarrowColin Barrow, Aijun Du, Ying (Ian) ChenYing (Ian) Chen, Wenrong YangWenrong Yang
Atomically thin boron nitride (BN) nanosheets were generally considered to be chemically inert until the recent discovery of the surprising catalysis. However, the origin of this unusual catalytic activity remains unclear. We have observed the free boron radicals at the edges and defective sites of BN nanosheets and demonstrated with both experimental and theoretical approaches that the boron radicals in the nanosheets can catalyze the chromogenic reaction of 3,5,3',5'-tetramethylbenzidine and serve as a source of reactive radicals for the co-reactant electrogenerated chemiluminescence of tris(2,2'-bipyridine)ruthenium(2+). These findings suggest BN nanosheets as a type of nonmetal catalyst.

History

Journal

ACS nano

Volume

13

Issue

2

Pagination

1394 - 1402

Publisher

American Chemical Society

Location

Washington, D.C.

eISSN

1936-086X

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2019, American Chemical Society