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Luo Z, Yin Z, Yu J, Yan Y, Hu B, Nie R, Kolln AF, Wu X, Behera RK, Chen M, Zhou L, Liu F, Wang B, Huang W, Zhang S, Qi L. General Synthetic Strategy to Ordered Mesoporous Carbon Catalysts with Single-Atom Metal Sites for Electrochemical CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107799. [PMID: 35229465 DOI: 10.1002/smll.202107799] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/21/2022] [Indexed: 06/14/2023]
Abstract
The electrochemical carbon dioxide reduction reaction (CO2 RR) is a transformative technology to reduce the carbon footprint of modern society. Single-site catalysts have been demonstrated as promising catalysts for CO2 RR, but general synthetic methods for catalysts with high surface area and tunable single-site metal composition still need to be developed to unambiguously investigate the structure-activity relationship crossing various metal sites. Here, a generalized coordination-condensation strategy is reported to prepare single-atom metal sites on ordered mesoporous carbon (OMC) with high surface areas (average 800 m2 g-1 ). This method is applicable to a broad range of metal sites (Fe, Co, Ni, Cu, Pt, Pd, Ru, and Rh) with loadings up to 4 wt.%. In particular, the CO2 RR to carbon monoxide (CO) Faradaic efficiency (FE) with Ni single-site OMC catalyst reaches 95%. This high FE is maintained even under large current density (>140 mA cm-2 ) and in a long-term study (14 h), which suits the urgently needed large-scale applications. Theoretical calculations suggest that the enhanced activity on single-atom Ni sites results from balanced binding energies between key intermediates, COOH and CO, for CO2 RR, as mediated by the coordination sphere.
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Affiliation(s)
- Zhicheng Luo
- U.S. DOE Ames Laboratory, Iowa State University, Ames, IA, 50011, USA
| | - Zhouyang Yin
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22904, USA
| | - Jiaqi Yu
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Yu Yan
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, OK, 73019, USA
| | - Bing Hu
- Institute for Catalysis, Hokkaido University, Hokkaido, 001-0021, Japan
| | - Renfeng Nie
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Anna F Kolln
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Xun Wu
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Ranjan K Behera
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Minda Chen
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Lin Zhou
- U.S. DOE Ames Laboratory, Iowa State University, Ames, IA, 50011, USA
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL, 32816, USA
| | - Bin Wang
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, OK, 73019, USA
| | - Wenyu Huang
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Sen Zhang
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22904, USA
| | - Long Qi
- U.S. DOE Ames Laboratory, Iowa State University, Ames, IA, 50011, USA
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Acharya P, Manso RH, Hoffman AS, Bakovic SIP, Kékedy-Nagy L, Bare SR, Chen J, Greenlee LF. Fe Coordination Environment, Fe-Incorporated Ni(OH)2 Phase, and Metallic Core Are Key Structural Components to Active and Stable Nanoparticle Catalysts for the Oxygen Evolution Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04881] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Prashant Acharya
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Ryan H. Manso
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Adam S. Hoffman
- Stanford Synchrotron Radiation Lightsource, Menlo Park, California 94025, United States
| | - Sergio I. Perez Bakovic
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - László Kékedy-Nagy
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
- Department of Electrical and Computer Engineering, Concordia University, Montreal, Quebec H3G 1M8, Canada
| | - Simon R. Bare
- Stanford Synchrotron Radiation Lightsource, Menlo Park, California 94025, United States
| | - Jingyi Chen
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Lauren F. Greenlee
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
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Zheng W, Wan Q, Zhang Q, Liu M, Zhang C, Wang B, Kong L, Li L. High-efficiency perovskite nanocrystal light-emitting diodes via decorating NiO x on the nanocrystal surface. NANOSCALE 2020; 12:8711-8719. [PMID: 32285067 DOI: 10.1039/d0nr01681k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nickel oxides exhibit a great potential as hole transport layers for the fabrication of efficient perovskite light-emitting diodes (LEDs) due to their high carrier mobility and good energy band matching with perovskite nanocrystals. In this work, nickel oxides were directly decorated on the CsPbBr3 nanocrystal surface through adsorption and a sequential oxidation treatment. The resulting sample shows a high photoluminescence quantum-yield of 82%. The LED using CsPbBr3 nanocrystals with nickel oxides achieves a high external quantum efficiency (EQE) of up to 16.8% with a low turn-on voltage of 2.8 V, which is much superior to that of the counterpart LED based on pristine CsPbBr3 nanocrystals (EQE = 0.7%, turn-on voltage = 5.6 V). The excellent performance of the nickel oxide decorated CsPbBr3 nanocrystal device could be attributed to the better energy level matching between the decorated nanocrystals and the transport layers of the device and more balanced charge carrier injection. Furthermore, the operational lifetime of the nickel oxide decorated CsPbBr3 nanocrystal device is 40 times longer than that of the pristine CsPbBr3 nanocrystal device.
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Affiliation(s)
- Weilin Zheng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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