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Huang E, Liu P. Theoretical Perspective of Promoting Direct Methane-to-Methanol Conversion at Complex Metal Oxide-Metal Interfaces. J Phys Chem Lett 2023; 14:6556-6563. [PMID: 37458591 DOI: 10.1021/acs.jpclett.3c01525] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Direct methane conversion to methanol has been considered as an effective and economic way to address greenhouse effects and the current high demand for methanol in industry. However, the process has long been challenging due to lack of viable catalysts to compromise the activation of methane that typically occurs at high temperatures and retaining of produced methanol that requires mild conditions. This Perspective demonstrates an effective strategy to promote direct methane to methanol conversion by engineering the active sites and chemical environments at complex metal oxide - copper oxide - copper interfaces. Such effort strongly depends on extensive theoretical studies by combining density functional theory (DFT) calculations and kinetic Monte Carlo (KMC) simulations to provide in-depth understanding of reaction mechanism and active sites, which build a strong basis to enable the identification of design principles and advance the catalyst optimization for selective CH4-to-CH3OH conversion.
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Affiliation(s)
- Erwei Huang
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Ping Liu
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
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Wang Q, Xiao Y, Yang S, Zhang Y, Wu L, Pan H, Rao D, Chen T, Sun Z, Wang G, Zhu J, Zeng J, Wei S, Zheng X. Monitoring Electron Flow in Nickel Single-Atom Catalysts during Nitrogen Photofixation. NANO LETTERS 2022; 22:10216-10223. [PMID: 36352348 DOI: 10.1021/acs.nanolett.2c03595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
An efficient catalytic system for nitrogen (N2) photofixation generally consists of light-harvesting units, active sites, and an electron-transfer bridge. In order to track photogenerated electron flow between different functional units, it is highly desired to develop in situ characterization techniques with element-specific capability, surface sensitivity, and detection of unoccupied states. In this work, we developed in situ synchrotron radiation soft X-ray absorption spectroscopy (in situ sXAS) to probe the variation of electronic structure for a reaction system during N2 photoreduction. Nickel single-atom and ceria nanoparticle comodified reduced graphene oxide (CeO2/Ni-G) was designed as a model catalyst. In situ sXAS directly reveals the dynamic interfacial charge transfer of photogenerated electrons under illumination and the consequent charge accumulation at the catalytic active sites for N2 activation. This work provides a powerful tool to monitor the electronic structure evolution of active sites under reaction conditions for photocatalysis and beyond.
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Affiliation(s)
- Qingyu Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
- College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yu Xiao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, P. R. China
| | - Shaokang Yang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Yida Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
- College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Lihui Wu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Haibin Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Dewei Rao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Tao Chen
- College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhihu Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Gongming Wang
- College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Shiqiang Wei
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
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Graciani J, Grinter DC, Ramírez PJ, Palomino RM, Xu F, Waluyo I, Stacchiola D, Fdez Sanz J, Senanayake SD, Rodriguez JA. Conversion of CO 2 to Methanol and Ethanol on Pt/CeO x/TiO 2(110): Enabling Role of Water in C–C Bond Formation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jesús Graciani
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
- Departamento de Química Física, Universidad de Sevilla, Sevilla 41012, Spain
| | - David C. Grinter
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
- Diamond Light Source, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - Pedro J. Ramírez
- Facultad de Ciencias, Universidad Central de Venezuela, 1020-A Caracas, Venezuela
- Zoneca-CENEX, R&D Laboratories, Alta Vista, 64770 Monterrey, México
| | - Robert M. Palomino
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Fang Xu
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Iradwikanari Waluyo
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Dario Stacchiola
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Javier Fdez Sanz
- Departamento de Química Física, Universidad de Sevilla, Sevilla 41012, Spain
| | - Sanjaya D. Senanayake
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - José A. Rodriguez
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
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