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  Constructing interfacial boron-nitrogen moieties in turbostratic carbon for electrochemical hydrogen peroxide production

Tian, Z., Zhang, Q., Thomsen, L., Gao, N., Pan, J., Daiyan, R., et al. (2022). Constructing interfacial boron-nitrogen moieties in turbostratic carbon for electrochemical hydrogen peroxide production. Angewandte Chemie International Edition, 61(37): e202206915. doi:10.1002/anie.202206915.

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 Creators:
Tian, Zhihong, Author
Zhang, Qingran, Author
Thomsen, Lars, Author
Gao, Nana, Author
Pan, Jian, Author
Daiyan, Rahman, Author
Yun, Jimmy, Author
Brandt, Jessica1, Author           
Lopez Salas, Nieves2, Author           
Lai, Feili, Author
Li, Qiuye, Author
Liu, Tianxi, Author
Amal, Rose, Author
Lu, Xunyu, Author
Antonietti, Markus3, Author           
Affiliations:
1Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863288              
2Nieves Lopez Salas, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3029702              
3Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              

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Free keywords: B/N co-doping; turbostatic carbon; oxygen reduction reaction; HO2 synthesis
 Abstract: Electrochemical oxygen reduction reaction (ORR) provides a green route for decentralized H2O2 synthesis, where astructure-selectivity relationship is pivotal for the control of a highly selective and active two-electron pathway. Here, we report the fabrication of a boron and nitrogen co-doped turbostratic carbon catalyst with tunable B-N-C configurations (CNB-ZIL) by the assistance of a zwitterionic liquid (ZIL) for electrochemical hydrogen peroxide production. Combined spectroscopic analysis reveals a fine tailored B-N moiety in CNB-ZIL, where interfacial B-N species in a homogeneous distribution tend to segregate into hexagonal boron nitride domains at higher pyrolysis temperatures. Based on the experimental observations, a correlation between the interfacial B-N moieties and HO2- selectivity is established. The CNB-ZIL electrocatalysts with optimal interfacial B-N moieties exhibit a high HO2- selectivity with small overpotentials in alkaline media, giving a HO2- yield of ~1787 mmol gcatalyst-1 h-1 at -1.4 V in a flow-cell reactor.

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Language(s): eng - English
 Dates: 2022-07-272022
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.1002/anie.202206915
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Title: Angewandte Chemie International Edition
  Abbreviation : Angew. Chem., Int. Ed.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 61 (37) Sequence Number: e202206915 Start / End Page: - Identifier: ISSN: 1433-7851

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Title: Angewandte Chemie
  Abbreviation : Angew. Chem.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 134 (37) Sequence Number: e202206915 Start / End Page: - Identifier: ISSN: 0044-8249