@article{ec967d10a1314b148968348c20e10573,
title = "Scalable Chemical Interface Confinement Reduction BiOBr to Bismuth Porous Nanosheets for Electroreduction of Carbon Dioxide to Liquid Fuel",
abstract = "Electrochemical reduction of carbon dioxide (CO2) toward chemical and fuel production is a compelling component of the new energy system. Two-dimensional bismuth with a particular surface has been identified as a highly efficient electrocatalyst for converting CO2 to formate. However, the development of a controllable synthetic strategy for possible large-scale production of such Bi materials remains highly challenging. Herein, a scalable chemical interface confinement reduction method is proposed for topotactic transformation of BiOBr (001) nanosheets to metallic Bi (001) porous nanosheets (PNS). As expected, the Bi (001) PNS exhibits excellent electrochemical performance on CO2 reduction to formate, with Faradaic efficiency of 95.2% and formate partial current density of 72 mA cm−2. Density functional theory calculations suggest that Bi PNS selectively exposes (001) surfaces with small-angle grain boundaries can significantly lower the free energy barrier for the formation of *OCHO, which are responsible for the high activity and selectivity toward CO2-to-formate conversion.",
keywords = "2D materials, BiOBr nanosheets, CO electroreduction, chemical interface confinement reduction, grain boundary",
author = "Xianbiao Fu and Wang, {Jia ao} and Xiaobing Hu and Kun He and Qing Tu and Qin Yue and Yijin Kang",
note = "Funding Information: The work is supported by the National Natural Science Foundation of China, under Award 21972016, 21773023. The authors acknowledge the support from International Institute for Nanotechnology (IIN) and Institute for Sustainability and Energy (ISEN) at Northwestern University. This work made use of the Electron Probe Instrumentation Center (EPIC) facility of Northwestern University's Atomic and Nanoscale Characterization Experimental Center (NUANCE), which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS‐1542205); the Materials Research Science and Engineering Centers (MRSEC) program (NSF DMR‐1121262) at the Materials Research Center; the IIN. This work made use of the J. B. Cohen X‐Ray Diffraction Facility supported by MRSEC and SHyNE. Funding Information: The work is supported by the National Natural Science Foundation of China, under Award 21972016, 21773023. The authors acknowledge the support from International Institute for Nanotechnology (IIN) and Institute for Sustainability and Energy (ISEN) at Northwestern University. This work made use of the Electron Probe Instrumentation Center (EPIC) facility of Northwestern University's Atomic and Nanoscale Characterization Experimental Center (NUANCE), which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205); the Materials Research Science and Engineering Centers (MRSEC) program (NSF DMR-1121262) at the Materials Research Center; the IIN. This work made use of the J. B. Cohen X-Ray Diffraction Facility supported by MRSEC and SHyNE. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH.",
year = "2022",
month = mar,
day = "2",
doi = "10.1002/adfm.202107182",
language = "English (US)",
volume = "32",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "Wiley-VCH Verlag",
number = "10",
}