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Boron radicals identified as the source of the unexpected catalysis by boron nitride nanosheets
journal contribution
posted on 2019-02-26, 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 YangAtomically 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 nanoVolume
13Issue
2Pagination
1394 - 1402Publisher
American Chemical SocietyLocation
Washington, D.C.Publisher DOI
eISSN
1936-086XLanguage
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2019, American Chemical SocietyUsage metrics
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boron nitride nanosheetcatalysiselectrochemiluminescencefree radicalspin trappingScience & TechnologyPhysical SciencesTechnologyChemistry, MultidisciplinaryChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryChemistryScience & Technology - Other TopicsMaterials ScienceELECTRON-SPIN-RESONANCEOXIDATIVE DEHYDROGENATIONELECTROGENERATED CHEMILUMINESCENCEGRAPHENEFUNCTIONALIZATIONNANOTUBESPROPANEOXIDEION
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