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Wang K, Li S, Yang A, Chen D, Xu F, Zhang LL, Zhang J, Yang S. Near-Barrierless CO Oxidation Using Phosphotungstic Acid-Supported Single-Atom Catalysts. Inorg Chem 2024; 63:13253-13264. [PMID: 38984385 DOI: 10.1021/acs.inorgchem.4c00863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Efficient CO oxidation at ambient or low temperatures is essential for environmental purification and selective CO oxidation in H2, yet achieving this remains a challenge with current methodologies. In this research, we extensively evaluated the catalytic performance of phosphotungstic acid (PTA)-supported 11 M1/PTA single-atom catalysts (SACs) using density functional theory calculations across both gas phase and 12 common solvents. The Rh1/PTA, Pd1/PTA, and Pt1/PTA systems exhibit moderate CO adsorption energies, facilitating the feasibility of oxygen vacancy formation. Remarkably, the Pd1/PTA and Pt1/PTA catalysts exhibited negligible energy barriers and demonstrated exceptionally high catalytic rates, with values reaching up to (1 × 1010)11, markedly exceeding the threshold for room temperature reactions, set at 6.55 × 108. This phenomenon is attributed to a transition from the high-energy barrier processes of oxygen dissociation in O2 and N-O bond dissociation in N2O to the more efficient dissociation of H2O2. Orbital analysis and charge variations at metal sites throughout the reaction process provide deeper insights into the role of the three metal catalytic sites in CO activation. Our findings not only reveal key aspects of SACs in facilitating CO oxidation at low temperatures but also provide valuable insights for future catalytic reaction mechanism studies and environmental applications.
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Affiliation(s)
- Kaijie Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, PR China
| | - Shiyu Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Anqi Yang
- Institute of New Type Optoelectronic Materials and Technology, College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China
| | - Dandan Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Feng Xu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Long Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jian Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Huazhong, University of Science and Technology, Wuhan 430074, PR China
| | - Song Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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Wei C, Zhang Y, Qu Y, Hua W, Jia Z, Lu J, Xie G, Xiao J, Hu H, Yang Y, Liu JQ, Bai J, Xue G. Dual Channel H 2O 2 Photosynthesis in Pure Water over S-Scheme Heterojunction Cs 3PMo 12/CC Boosted by Proton and Electron Reservoirs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401485. [PMID: 38712455 DOI: 10.1002/smll.202401485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/24/2024] [Indexed: 05/08/2024]
Abstract
Dual channel photo-driven H2O2 production in pure water on small-scale on-site setups is a promising strategy to provide low-concentrated H2O2 whenever needed. This process suffers, however, strongly from the fast recombination of photo-generated charge carriers and the sluggish oxidation process. Here, insoluble Keggin-type cesium phosphomolybdate Cs3PMo12O40 (abbreviated to Cs3PMo12) is introduced to carbonized cellulose (CC) to construct S-scheme heterojunction Cs3PMo12/CC. Dual channel H2O2 photosynthesis from both H2O oxidation and O2 reduction in pure water has been thus achieved with the production rate of 20.1 mmol L-1 gcat. -1 h-1, apparent quantum yield (AQY) of 2.1% and solar-to-chemical conversion (SCC) efficiency of 0.050%. H2O2 accumulative concentration reaches 4.9 mmol L-1. This high photocatalytic activity is guaranteed by unique features of Cs3PMo12/CC, namely, S-scheme heterojunction, electron reservoir, and proton reservoir. The former two enhance the separation of photo-generated charge carriers, while the latter speeds up the torpid oxidation process. In situ experiments reveal that H2O2 is formed via successive single-electron transfer in both channels. In real practice, exposing the reaction system under natural sunlight outdoors successfully results in 0.24 mmol L-1 H2O2. This work provides a key practical strategy for designing photocatalysts in modulating redox half-reactions in photosynthesis.
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Affiliation(s)
- Chong Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Yu Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Yunteng Qu
- State Key Laboratory of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & PhotonTechnology, Northwest University, Xi'an, 710069, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Wenbo Hua
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Zixian Jia
- SINOPEC Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd, Dalian, 116045, China
| | - Jiangbo Lu
- School of Physics & Information Technology, Shaanxi Normal University, Xi'an, Shaanxi, 710062, China
| | - Gang Xie
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Jianming Xiao
- Department College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Huaiming Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Ying Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Ji-Quan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Jinbo Bai
- CentraleSupélec, ENS Paris-Saclay, CNRS, LMPS-Laboratoire de Mécanique Paris-Saclay, Université Paris-Saclay, 8-10 rue Joliot-Curie, Gif-sur-Yvette, 91190, France
| | - Ganglin Xue
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
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Zhang J, Sun P, Mo Z, Zhu X, Shouquat Hossain MD, Wu G, Miao Z, Yan P, Chen Z, Xu H. Adjacent Mn site boosts photocatalytic hydrogen evolution of Mn XCd 1-XS solid solution through a dual-metal-site design. J Colloid Interface Sci 2023; 652:470-479. [PMID: 37604058 DOI: 10.1016/j.jcis.2023.08.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/26/2023] [Accepted: 08/05/2023] [Indexed: 08/23/2023]
Abstract
CdS has emerged as a possible candidate for photocatalytic hydrogen generation. However, further improvement in the performance of the Cd metal site is challenging due to limited optimization space. To solve this limitation, in this work, the Mn-Cd dual-metal photocatalyst was synthesized by a one-step solvothermal method, and the effects of different proportions of bimetals on hydrogen production activity were systematically studied. The ingenious design of the bimetallic sites enhances the carrier separation efficiency and the built-in electric field intensity, which leads to significant improvement in the photocatalytic hydrogen production performance of MCS0.19. Density functional theory (DFT) calculations confirm that the introduction of the Mn element can drive electrons through the Fermi level, resulting in enhanced conductivity of the catalyst. Meanwhile, electron channels are built between Mn and S, which speeds up the rate of electron transfer and is conducive to improving hydrogen production activity. This work provides a technical-methodological entrance to improve the photocatalytic hydrogen production performance of dual-metal S solid solutions and also promises to open a novel approach to creating high-efficiency solid solution photocatalysts.
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Affiliation(s)
- Jinyuan Zhang
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Peipei Sun
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhao Mo
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Xianglin Zhu
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - M D Shouquat Hossain
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Guanyu Wu
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China; School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhihuan Miao
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Pengcheng Yan
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhigang Chen
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Hui Xu
- School of the Environment and Safety Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China.
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