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Dong G, Huang X, Bi Y. Anchoring Black Phosphorus Quantum Dots on Fe-Doped W 18 O 49 Nanowires for Efficient Photocatalytic Nitrogen Fixation. Angew Chem Int Ed Engl 2022; 61:e202204271. [PMID: 35545533 DOI: 10.1002/anie.202204271] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Indexed: 12/18/2022]
Abstract
Herein, we demonstrate that the surface anchoring of black phosphorus quantum dots (BPQDs) and bulk iron-doping in W18 O49 nanowires significantly promotes the photocatalytic activity toward N2 fixation into NH3 . More specifically, a NH3 production rate of up to 187.6 μmol g-1 h-1 could be achieved, nearly one order of magnitude higher than that of pristine W18 O49 (18.9 μmol g-1 h-1 ). Comprehensive experiments and density-functional theory calculations reveal that Fe-doping could enhance the reducing ability of photo-generated electrons by decreasing the work function and elevating the defect band (d-band) centers. Additionally, the surface BPQDs anchoring could facilitate the N2 adsorption/activation owing to the increased adsorption energy and advantaged W-P dimer bonding-mode. Therefore, synergizing the surface BPQD anchoring and bulk Fe-doping remarkably enhanced the photocatalytic activity of W18 O49 nanowires for NH3 production.
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Affiliation(s)
- Guojun Dong
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, P. R. China
| | - Xiaojuan Huang
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, P. R. China
| | - Yingpu Bi
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, P. R. China.,Dalian National Laboratory for Clean Energy, CAS, Dalian, 116023, China
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Li T, Han S, Cheng C, Wang Y, Du X, Yu Y, Zhang B. Sulfate-Enabled Nitrate Synthesis from Nitrogen Electrooxidation on a Rhodium Electrocatalyst. Angew Chem Int Ed Engl 2022; 61:e202204541. [PMID: 35441770 DOI: 10.1002/anie.202204541] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Indexed: 11/11/2022]
Abstract
The electrocatalytic nitrogen oxidation reaction (NOR) to generate nitrate is gaining increasing attention as an alternative approach to the conventional industrial manufacture. But, current progress in NOR is limited by the difficulties in activation and conversion of the strong N≡N bond (941 kJ mol-1 ). Herein, we designed to utilize sulfate to enhance NOR performance over an Rh electrocatalyst. After the addition of sulfate, the inert Rh nanoparticles exhibited superior NOR performance with a nitrate yield of 168.0 μmol gcat -1 h-1 . The 15 N isotope-labeling experiment confirmed the produced nitrate from nitrogen electrooxidation. A series of electrochemical in situ characterizations and theoretical calculation unveiled that sulfate promoted nitrogen adsorption and decreased the reaction energy barrier, and in situ formed sulfate radicals reduced the activation energy of the potential-determining step, thus accelerating NOR.
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Affiliation(s)
- Tieliang Li
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Shuhe Han
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Chuanqi Cheng
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yuting Wang
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Xiwen Du
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yifu Yu
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Bin Zhang
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
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Dong G, Huang X, Bi Y. Anchoring Black Phosphorus Quantum Dots on Fe‐Doped W
18
O
49
Nanowires for Efficient Photocatalytic Nitrogen Fixation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guojun Dong
- State Key Laboratory for Oxo Synthesis & Selective Oxidation National Engineering Research Center for Fine Petrochemical Intermediates Lanzhou Institute of Chemical Physics CAS Lanzhou 730000 P. R. China
| | - Xiaojuan Huang
- State Key Laboratory for Oxo Synthesis & Selective Oxidation National Engineering Research Center for Fine Petrochemical Intermediates Lanzhou Institute of Chemical Physics CAS Lanzhou 730000 P. R. China
| | - Yingpu Bi
- State Key Laboratory for Oxo Synthesis & Selective Oxidation National Engineering Research Center for Fine Petrochemical Intermediates Lanzhou Institute of Chemical Physics CAS Lanzhou 730000 P. R. China
- Dalian National Laboratory for Clean Energy CAS Dalian 116023 China
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4
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Li T, Han S, Cheng C, Wang Y, Du X, Yu Y, Zhang B. Sulfate‐Enabled Nitrate Synthesis from Nitrogen Electrooxidation on a Rhodium Electrocatalyst. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tieliang Li
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Shuhe Han
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Chuanqi Cheng
- Institute of New Energy Materials School of Materials Science and Engineering Tianjin University Tianjin 300072 China
| | - Yuting Wang
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Xiwen Du
- Institute of New Energy Materials School of Materials Science and Engineering Tianjin University Tianjin 300072 China
| | - Yifu Yu
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
- Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 China
| | - Bin Zhang
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
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Gu K, Wang D, Xie C, Wang T, Huang G, Liu Y, Zou Y, Tao L, Wang S. Defect-Rich High-Entropy Oxide Nanosheets for Efficient 5-Hydroxymethylfurfural Electrooxidation. Angew Chem Int Ed Engl 2021; 60:20253-20258. [PMID: 34173309 DOI: 10.1002/anie.202107390] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Indexed: 12/13/2022]
Abstract
High-entropy oxides (HEOs), a new concept of entropy stabilization, exhibit unique structures and fascinating properties, and are thus important class of materials with significant technological potential. However, the conventional high-temperature synthesis techniques tend to afford micron-scale HEOs with low surface area, and the catalytic activity of available HEOs is still far from satisfactory because of their limited exposed active sites and poor intrinsic activity. Here we report a low-temperature plasma strategy for preparing defect-rich HEOs nanosheets with high surface area, and for the first time employ them for 5-hydroxymethylfurfural (HMF) electrooxidation. Owing to the nanosheets structure, abundant oxygen vacancies, and high surface area, the quinary (FeCrCoNiCu)3 O4 nanosheets deliver improved activity for HMF oxidation with lower onset potential and faster kinetics, outperforming that of HEOs prepared by high-temperature method. Our method opens new opportunities for synthesizing nanostructured HEOs with great potential applications.
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Affiliation(s)
- Kaizhi Gu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Dongdong Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Chao Xie
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Tehua Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Gen Huang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Yanbo Liu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Yuqin Zou
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Li Tao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Shuangyin Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
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Su L, Wang P, Ma X, Wang J, Zhan S. Regulating Local Electron Density of Iron Single Sites by Introducing Nitrogen Vacancies for Efficient Photo‐Fenton Process. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108937] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Lina Su
- MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China
| | - Pengfei Wang
- Tianjin Key Laboratory of Clean Energy and Pollutant Control School of Energy and Environmental Engineering Hebei University of Technology Tianjin 300401 P. R. China
| | - Xiaoli Ma
- College of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830000 P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116000 P. R. China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China
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Su L, Wang P, Ma X, Wang J, Zhan S. Regulating Local Electron Density of Iron Single Sites by Introducing Nitrogen Vacancies for Efficient Photo-Fenton Process. Angew Chem Int Ed Engl 2021; 60:21261-21266. [PMID: 34370369 DOI: 10.1002/anie.202108937] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Indexed: 11/11/2022]
Abstract
The activity of heterogeneous photocatalytic H2 O2 activation in Fenton-like processes is closely related to the local electron density of reaction centre atoms. However, the recombination of electron-hole pairs arising from random charge transfer greatly restricts the oriented electron delivery to active center. Here we show a defect engineered iron single atom photocatalyst (Fe1 -Nv /CN, single Fe atoms dispersed on carbon nitride with abundant nitrogen vacancies) for the activation of H2 O2 under visible light irradiation. Based on DFT calculations and transient absorption spectroscopy results, the engineered nitrogen vacancies serve as the electron trap sites, which can directionally drive the electrons to concentrate on Fe atoms. The formation of highly concentrated electrons density at Fe sites significantly improves the H2 O2 conversion efficiency. Therefore, the optimized single atom catalyst exhibiting a higher ciprofloxacin degradation activity, which was up to 18 times that of pristine CN.
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Affiliation(s)
- Lina Su
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Pengfei Wang
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Xiaoli Ma
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830000, P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116000, P. R. China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
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Gu K, Wang D, Xie C, Wang T, Huang G, Liu Y, Zou Y, Tao L, Wang S. Defect‐Rich High‐Entropy Oxide Nanosheets for Efficient 5‐Hydroxymethylfurfural Electrooxidation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107390] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kaizhi Gu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Dongdong Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Chao Xie
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Tehua Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Gen Huang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Yanbo Liu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Yuqin Zou
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Li Tao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Shuangyin Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
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