Docking MOF crystals on graphene support for highly selective electrocatalytic peroxide production

Huang, X. ; Oleynikov, P. ; He, H. ; Mayoral, A. (Universidad de Zaragoza) ; Mu, L. ; Lin, F. ; Zhang, Y. B.

Resumen: Tailoring the reaction kinetics is the central theme of designer electrocatalysts, which enables the selective conversion of abundant and inert atmospheric species into useful products. Here we show a supporting effect in tuning the electrocatalytic kinetics of oxygen reduction reaction (ORR) from four-electron to two-electron mechanism by docking metalloporphyrin-based metal-organic frameworks (MOFs) crystals on graphene support, leading to highly selective peroxide production with faradaic efficiency as high as 93.4%. A magic angle of 38.1° tilting for the co-facial alignment was uncovered by electron diffraction tomography, which is attributed to the maximization of π-π interaction for mitigating the lattice and symmetry mismatch between MOF and graphene. The facilitated electron migration and oxygen chemisorption could be ascribed to the supportive effect of graphene that disperses of the electron state of the active center, and ultimately regulates rate-determining step.

Idioma: Inglés

DOI: 10.1007/s12274-021-3382-3

Año: 2022

Publicado en: Nano Research 15, 1 (2022), 145-152
ISSN: 1998-0124

Factor impacto JCR: 9.9 (2022)

Categ. JCR: CHEMISTRY, PHYSICAL rank: 29 / 161 = 0.18 (2022) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 24 / 107 = 0.224 (2022) - Q1 - T1
Categ. JCR: PHYSICS, APPLIED rank: 18 / 160 = 0.112 (2022) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 47 / 343 = 0.137 (2022) - Q1 - T1

Factor impacto CITESCORE: 13.7 - Engineering (Q1) - Physics and Astronomy (Q1) - Materials Science (Q1)

Factor impacto SCIMAGO: 2.486 - Atomic and Molecular Physics, and Optics (Q1) - Condensed Matter Physics (Q1) - Nanoscience and Nanotechnology (Q1) - Materials Science (miscellaneous) (Q1) - Electrical and Electronic Engineering (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FSE/E13-20R
Financiación: info:eu-repo/grantAgreement/EC/FP7/610256/EU/Gas and Dust from the Stars to the Laboratory: Exploring the NanoCosmos/NANOCOSMOS
Financiación: info:eu-repo/grantAgreement/EC/H2020/648319/EU/Hybrid Materials for Artificial Photosynthesis/HyMAP
Financiación: info:eu-repo/grantAgreement/ES/MICINN/RYC-2018-024561-I
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2019--106315RB-I00
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2020-113142RB-C21
Financiación: info:eu-repo/grantAgreement/ES/MINECO/S2018-NMT-4367

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)