51
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Wang H, Diao Y, Gao Z, Smith KJ, Guo X, Ma D, Shi C. H 2 Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Haiyan Wang
- State Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning116024, P. R. China
| | - Yanan Diao
- State Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning116024, P. R. China
| | - Zirui Gao
- College of Chemistry and Molecular Engineering, Peking University, Beijing100871, P. R. China
| | - Kevin J. Smith
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BCV6T 1Z3, Canada
| | - Xinwen Guo
- State Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning116024, P. R. China
| | - Ding Ma
- College of Chemistry and Molecular Engineering, Peking University, Beijing100871, P. R. China
| | - Chuan Shi
- State Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning116024, P. R. China
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52
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Modulating the strong metal-support interaction of single-atom catalysts via vicinal structure decoration. Nat Commun 2022; 13:4244. [PMID: 35869061 PMCID: PMC9307766 DOI: 10.1038/s41467-022-31966-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 07/06/2022] [Indexed: 01/19/2023] Open
Abstract
AbstractMetal-support interaction predominately determines the electronic structure of metal atoms in single-atom catalysts (SACs), largely affecting their catalytic performance. However, directly tuning the metal-support interaction in oxide supported SACs remains challenging. Here, we report a new strategy to subtly regulate the strong covalent metal-support interaction (CMSI) of Pt/CoFe2O4 SACs by a simple water soaking treatment. Detailed studies reveal that the CMSI is weakened by the bonding of H+, generated from water dissociation, onto the interface of Pt-O-Fe, resulting in reduced charge transfer from metal to support and leading to an increase of C-H bond activation in CH4 combustion by more than 50 folds. This strategy is general and can be extended to other CMSI-existed metal-supported catalysts, providing a powerful tool to modulating the catalytic performance of SACs.
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53
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Wang B, Luo Y, Chu G, Zhao Y, Duan X, Chen J. Optimizing the Pt‐FeO
x
Interaction over Atomic Pt/FeO
x
/CeO
2
Catalysts for Improved CO Oxidation Activity. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202200104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Bao‐Ju Wang
- Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites 100029 Beijing China
- Beijing University of Chemical Technology Research Center of the Ministry of Education for High Gravity Engineering and Technology 100029 Beijing China
| | - Yong Luo
- Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites 100029 Beijing China
- Beijing University of Chemical Technology Research Center of the Ministry of Education for High Gravity Engineering and Technology 100029 Beijing China
| | - Guang‐Wen Chu
- Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites 100029 Beijing China
- Beijing University of Chemical Technology Research Center of the Ministry of Education for High Gravity Engineering and Technology 100029 Beijing China
| | - Yufei Zhao
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering 100029 Beijing China
| | - Xue Duan
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering 100029 Beijing China
| | - Jian‐Feng Chen
- Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites 100029 Beijing China
- Beijing University of Chemical Technology Research Center of the Ministry of Education for High Gravity Engineering and Technology 100029 Beijing China
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54
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Parastaev A, Muravev V, Osta EH, Kimpel TF, Simons JFM, van Hoof AJF, Uslamin E, Zhang L, Struijs JJC, Burueva DB, Pokochueva EV, Kovtunov KV, Koptyug IV, Villar-Garcia IJ, Escudero C, Altantzis T, Liu P, Béché A, Bals S, Kosinov N, Hensen EJM. Breaking structure sensitivity in CO2 hydrogenation by tuning metal–oxide interfaces in supported cobalt nanoparticles. Nat Catal 2022. [DOI: 10.1038/s41929-022-00874-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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55
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Onn TM, Gathmann SR, Guo S, Solanki SPS, Walton A, Page BJ, Rojas G, Neurock M, Grabow LC, Mkhoyan KA, Abdelrahman OA, Frisbie CD, Dauenhauer PJ. Platinum Graphene Catalytic Condenser for Millisecond Programmable Metal Surfaces. J Am Chem Soc 2022; 144:22113-22127. [DOI: 10.1021/jacs.2c09481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Tzia Ming Onn
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
| | - Sallye R. Gathmann
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
| | - Silu Guo
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
| | - Surya Pratap S. Solanki
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- William A. Brookshire Department of Chemical and Biomolecular Engineering and Texas Center for Superconductivity (TcSUH), University of Houston, Houston, Texas77204, United States
| | - Amber Walton
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
| | - Benjamin J. Page
- Department of Chemical Engineering, University Massachusetts Amherst, 686 N. Pleasant Street, Amherst, Massachusetts01003, United States
| | - Geoffrey Rojas
- Characterization Facility, University of Minnesota, 100 Union Street SE, Minneapolis, Minnesota55455, United States
| | - Matthew Neurock
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
| | - Lars C. Grabow
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- William A. Brookshire Department of Chemical and Biomolecular Engineering and Texas Center for Superconductivity (TcSUH), University of Houston, Houston, Texas77204, United States
| | - K. Andre Mkhoyan
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
| | - Omar A. Abdelrahman
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- Department of Chemical Engineering, University Massachusetts Amherst, 686 N. Pleasant Street, Amherst, Massachusetts01003, United States
| | - C. Daniel Frisbie
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
| | - Paul J. Dauenhauer
- Center for Programmable Energy Catalysis (CPEC), University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota55455, United States
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56
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Shi Y, Wan J, Kong F, Wang Y, Zhou R. Influence of Pt dispersibility and chemical states on catalytic performance of Pt/CeO2-TiO2 catalysts for VOCs low-temperature removal. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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57
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Facet-dependent electronic state of Pt single atoms anchoring on CeO2 nanocrystal for CO (preferential) oxidation. J Catal 2022. [DOI: 10.1016/j.jcat.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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58
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Song Z, Li J, Davis KD, Li X, Zhang J, Zhang L, Sun X. Emerging Applications of Synchrotron Radiation X-Ray Techniques in Single Atomic Catalysts. SMALL METHODS 2022; 6:e2201078. [PMID: 36207288 DOI: 10.1002/smtd.202201078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Indexed: 06/16/2023]
Abstract
Single atom catalysts (SACs) can achieve a maximum atom utilization efficiency of 100%, which provides significantly increased active sites compared with traditional catalysts during catalytic reactions. Synchrotron radiation technology is an important characterization method for identifying single-atom catalysts. Several types of internal information, such as the coordination number, bond length and electronic structure of metals, can all be analyzed. This review will focus on the introduction of synchrotron radiation techniques and their applications in SACs. First, the fundamentals of synchrotron radiation and the corresponding techniques applied in characterization of SACs will be briefly introduced, such as X-ray absorption near edge spectroscopy and extended X-ray absorption fine structure spectroscopy and in situ techniques. The detailed information obtained from synchrotron radiation X-ray characterization is described through four routes: 1) the local environment of a specific atom; 2) the oxidation state of SACs; 3) electronic structures at different orbitals; and 4) the in situ structure modification during catalytic reaction. In addition, a systematic summary of synchrotron radiation X-ray characterization on different types of SACs (noble metals and transition metals) will be discussed.
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Affiliation(s)
- Zhongxin Song
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Junjie Li
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
| | - Kieran Doyle Davis
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
| | - Xifei Li
- Xi'an Key Laboratory of New Energy Materials and Devices, Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Jiujun Zhang
- Institute for New Energy Materials and Engineering/College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Lei Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
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59
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Wang Y, Wang M. Recent progresses on single-atom catalysts for the removal of air pollutants. Front Chem 2022; 10:1039874. [DOI: 10.3389/fchem.2022.1039874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/10/2022] [Indexed: 11/13/2022] Open
Abstract
The booming industrialization has aggravated emission of air pollutants, inflicting serious harm on environment and human health. Supported noble-metals are one of the most popular catalysts for the oxidation removal of air pollutants. Unfortunately, the high price and large consumption restrict their development and practical application. Single-atom catalysts (SACs) emerge and offer an optimizing approach to address this issue. Due to maximal atom utilization, tunable coordination and electron environment and strong metal-support interaction, SACs have shown remarkable catalytic performance on many reactions. Over the last decade, great potential of SACs has been witnessed in the elimination of air pollutants. In this review, we first briefly summarize the synthesis methods and modulation strategies together with the characterization techniques of SACs. Next, we highlight the application of SACs in the abatement of air pollutants including CO, volatile organic compounds (VOCs) and NOx, unveiling the related catalytic mechanism of SACs. Finally, we propose the remaining challenges and future perspectives of SACs in fundamental research and practical application in the field of air pollutant removal.
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60
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Li X, Pereira-Hernández XI, Chen Y, Xu J, Zhao J, Pao CW, Fang CY, Zeng J, Wang Y, Gates BC, Liu J. Functional CeOx nanoglues for robust atomically dispersed catalysts. Nature 2022; 611:284-288. [DOI: 10.1038/s41586-022-05251-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/18/2022] [Indexed: 11/09/2022]
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61
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Cai T, Teng Z, Wen Y, Zhang H, Wang S, Fu X, Song L, Li M, Lv J, Zeng Q. Single-atom site catalysts for environmental remediation: Recent advances. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129772. [PMID: 35988491 DOI: 10.1016/j.jhazmat.2022.129772] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Single-atom site catalysts (SACs) can maximize the utilization of active metal species and provide an attractive way to regulate the activity and selectivity of catalytic reactions. The adjustable coordination configuration and atomic structure of SACs enable them to be an ideal candidate for revealing reaction mechanisms in various catalytic processes. The minimum use of metals and relatively tight anchoring of the metal atoms significantly reduce leaching and environmental risks. Additionally, the unique physicochemical properties of single atom sites endow SACs with superior activity in various catalytic processes for environmental remediation (ER). Generally, SACs are burgeoning and promising materials in the application of ER. However, a systematic and critical review on the mechanism and broad application of SACs-based ER is lacking. Herein, we review emerging studies applying SACs for different ERs, such as eliminating organic pollutants in water, removing volatile organic compounds, purifying automobile exhaust, and others (hydrodefluorination and disinfection). We have summarized the synthesis, characterization, reaction mechanism and structural-function relationship of SACs in ER. In addition, the perspectives and challenges of SACs for ER are also analyzed. We expect that this review can provide constructive inspiration for discoveries and applications of SACs in environmental catalysis in the future.
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Affiliation(s)
- Tao Cai
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Zhenzhen Teng
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Yanjun Wen
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Huayang Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia.
| | - Xijun Fu
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Lu Song
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Mi Li
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Junwen Lv
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Qingyi Zeng
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China.
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62
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Zhang Y, Liu X, Li S, Wu B, Xu Y, Yang W, Huang C, Zhong L, Wang J, Chen Y. Significant Reduction of the Formation of N 2O and NH 3 on an Efficient Three-Way PtRh Catalyst Modified by LaFeCu Perovskite. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yaliu Zhang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
| | - Xi Liu
- College of Chemical Engineering, Sichuan University, Chengdu610064, Sichuan, China
| | - Shanshan Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
| | - Bingcheng Wu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
| | - Yang Xu
- College of Chemical Engineering, Sichuan University, Chengdu610064, Sichuan, China
| | - Wenhu Yang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
| | - Chengsong Huang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
| | - Lin Zhong
- College of Chemical Engineering, Sichuan University, Chengdu610064, Sichuan, China
| | - Jianli Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
| | - Yaoqiang Chen
- Institute of New Energy and Low-Carbon Technology, Chengdu610064, Sichuan, China
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63
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Hülsey MJ, Fung V, Hou X, Wu J, Yan N. Hydrogen Spillover and Its Relation to Hydrogenation: Observations on Structurally Defined Single‐Atom Sites**. Angew Chem Int Ed Engl 2022; 61:e202208237. [DOI: 10.1002/anie.202208237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Max J. Hülsey
- Department of Chemical and Biomolecular Engineering National University of Singapore 1 Engineering Drive 3 117580 Singapore Singapore
| | - Victor Fung
- Center for Nanophase Materials Sciences Oak Ridge National Laboratory One Bethel Valley Road Oak Ridge TN 37831 USA
| | - Xudong Hou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Jishan Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering National University of Singapore 1 Engineering Drive 3 117580 Singapore Singapore
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64
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Xi J, Zhang X, Zhou X, Wu X, Wang S, Yu W, Yan N, Loh KP, Xu QH. Titanium dioxide hierarchical microspheres decorated with atomically dispersed platinum as an efficient photocatalyst for hydrogen evolution. J Colloid Interface Sci 2022; 623:799-807. [DOI: 10.1016/j.jcis.2022.05.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/17/2022]
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65
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Differentiating supported platinum single atoms, clusters and nanoparticles by styrene hydrogenation. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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66
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TiO2-supported Single-atom Catalysts: Synthesis, Structure, and Application. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2224-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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67
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Ensemble effect for single-atom, small cluster and nanoparticle catalysts. Nat Catal 2022. [DOI: 10.1038/s41929-022-00839-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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68
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Kinetically rate-determining step modulation by metal—support interactions for CO oxidation on Pt/CeO2. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1361-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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69
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Abstract
The field of single-atom catalysis (SAC) has expanded greatly in recent years. While there has been much success developing new synthesis methods, a fundamental disconnect exists between most experiments and the theoretical computations used to model them. The real catalysts are based on powder supports, which inevitably contain a multitude of different facets, different surface sites, defects, hydroxyl groups, and other contaminants due to the environment. This makes it extremely difficult to determine the structure of the active SAC site using current techniques. To be tractable, computations aimed at modeling SAC utilize periodic boundary conditions and low-index facets of an idealized support. Thus, the reaction barriers and mechanisms determined computationally represent, at best, a plausibility argument, and there is a strong chance that some critical aspect is omitted. One way to better understand what is plausible is by experimental modeling, i.e., comparing the results of computations to experiments based on precisely defined single-crystalline supports prepared in an ultrahigh-vacuum (UHV) environment. In this review, we report the status of the surface-science literature as it pertains to SAC. We focus on experimental work on supports where the site of the metal atom are unambiguously determined from experiment, in particular, the surfaces of rutile and anatase TiO2, the iron oxides Fe2O3 and Fe3O4, as well as CeO2 and MgO. Much of this work is based on scanning probe microscopy in conjunction with spectroscopy, and we highlight the remarkably few studies in which metal atoms are stable on low-index surfaces of typical supports. In the Perspective section, we discuss the possibility for expanding such studies into other relevant supports.
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Affiliation(s)
- Florian Kraushofer
- Institute of Applied Physics, Technische Universitat Wien, 1040 Vienna, Austria
| | - Gareth S Parkinson
- Institute of Applied Physics, Technische Universitat Wien, 1040 Vienna, Austria
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70
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In Situ DRIFTS Study of Single-Atom, 2D, and 3D Pt on γ-Al2O3 Nanoflakes and Nanowires for C2H4 Oxidation. Processes (Basel) 2022. [DOI: 10.3390/pr10091773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Up to now, a great number of catalysts have been reported that are active in the oxidation of volatile organic compounds (VOCs). However, supported noble-metal catalysts (especially Pt-based catalysts) are still the most excellent ones for this reaction. In this study, Pt species supported on γ-Al2O3 and ranging from single-atom sites to clusters (less than 1 nm) and 1–2 nm nanoparticles were prepared and investigated for oxidizing C2H4. The Pt-loaded γ-Al2O3 nanoflakes (PtAl-NF) and Pt-loaded γ-Al2O3 nanowires (PtAl-NW) were successfully prepared. The samples were characterized using XRD, TEM, XPS, HAADF-STEM, and in situ DRIFTS. Based on in situ DRIFTS, a simple surface reaction mechanism was developed. The stable intermediates CO on single-atom Pt, subnanometer Pt particles, and fully exposed Pt clusters could be explained by the strong binding of CO molecule poisoning Pt sites. Moreover, the oxidation of C2H4 was best achieved by Pt particles that were 1–2 nm in size and the catalytic activity of PtAl-NF was better when it had less Pt. Lastly, the most exposed (110) facets of γ-Al2O3 nanoflakes were more resistant to water than the majorly exposed (100) facets of γ-Al2O3 nanowires.
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71
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Matthews T, Mashola TA, Adegoke KA, Mugadza K, Fakude CT, Adegoke OR, Adekunle AS, Ndungu P, Maxakato NW. Electrocatalytic activity on single atoms catalysts: Synthesis strategies, characterization, classification, and energy conversion applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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72
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Chen Y, Lin J, Jia B, Wang X, Jiang S, Ma T. Isolating Single and Few Atoms for Enhanced Catalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201796. [PMID: 35577552 DOI: 10.1002/adma.202201796] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/16/2022] [Indexed: 05/27/2023]
Abstract
Atomically dispersed metal catalysts have triggered great interest in the field of catalysis owing to their unique features. Isolated single or few metal atoms can be anchored on substrates via chemical bonding or space confinement to maximize atom utilization efficiency. The key challenge lies in precisely regulating the geometric and electronic structure of the active metal centers, thus significantly influencing the catalytic properties. Although several reviews have been published on the preparation, characterization, and application of single-atom catalysts (SACs), the comprehensive understanding of SACs, dual-atom catalysts (DACs), and atomic clusters has never been systematically summarized. Here, recent advances in the engineering of local environments of state-of-the-art SACs, DACs, and atomic clusters for enhanced catalytic performance are highlighted. Firstly, various synthesis approaches for SACs, DACs, and atomic clusters are presented. Then, special attention is focused on the elucidation of local environments in terms of electronic state and coordination structure. Furthermore, a comprehensive summary of isolated single and few atoms for the applications of thermocatalysis, electrocatalysis, and photocatalysis is provided. Finally, the potential challenges and future opportunities in this emerging field are presented. This review will pave the way to regulate the microenvironment of the active site for boosting catalytic processes.
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Affiliation(s)
- Yang Chen
- Institute of Clean Energy Chemistry, Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang, 110036, China
| | - Jian Lin
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Baohua Jia
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Xiaodong Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Shuaiyu Jiang
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Tianyi Ma
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
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73
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Gao Z, Cai L, Miao C, Hui T, Wang Q, Li D, Feng J. Electronic Metal−Support Interaction Strengthened Pt/CoAl‐LDHs Catalyst for Selective Cinnamaldehyde Hydrogenation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhexi Gao
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Luoyu Cai
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Chenglin Miao
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Tianli Hui
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Qian Wang
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Dianqing Li
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Junting Feng
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering 98#, No.15, Beisanhuan East Road 100029 Beijing CHINA
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74
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Kurtoğlu-Öztulum SF, Yalçın K, Hoffman AS, Jalal A, Zhao Y, Gates BC, Bare SR, Unal U, Uzun A. Ionic Liquid Sheath Stabilizes Atomically Dispersed Reduced Graphene Aerogel‐Supported Iridium Complexes during Ethylene Hydrogenation Catalysis. ChemCatChem 2022. [DOI: 10.1002/cctc.202200553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Kaan Yalçın
- Koç University: Koc Universitesi Chemical and Biological Engineering TURKEY
| | | | - Ahsan Jalal
- Koç University: Koc Universitesi Chemical and Biological Engineering TURKEY
| | - Yuxin Zhao
- Koç University: Koc Universitesi Chemical and Biological Engineering TURKEY
| | - Bruce C. Gates
- UC Davis: University of California Davis Chemical Engineering TURKEY
| | - Simon R. Bare
- SLAC: Stanford Linear Accelerator Center SSRL TURKEY
| | - Ugur Unal
- Koç University: Koc Universitesi Chemistry TURKEY
| | - Alper Uzun
- Koç University: Koc Universitesi Chemical and Biological Engineering Koc UniversityDepartment of Chemical and Biological EngineeringRumelifeneri YoluSariyer 34450 Istanbul TURKEY
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75
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Ou Y, Li S, Wang F, Duan X, Yuan W, Yang H, Zhang Z, Wang Y. Reversible transformation between terrace and step sites of Pt nanoparticles on titanium under CO and O2 environments. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63958-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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76
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Szamosvölgyi Á, Rajkumar T, Sápi A, Szenti I, Ábel M, Gómez-Pérez JF, Baán K, Fogarassy Z, Dodony E, Pécz B, Garg S, Kiss J, Kukovecz Á, Kónya Z. Interfacial Ni active sites strike solid solutional counterpart in CO2 hydrogenation. ENVIRONMENTAL TECHNOLOGY & INNOVATION 2022. [DOI: 10.1016/j.eti.2022.102747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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77
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Shi Y, Zhou Y, Lou Y, Chen Z, Xiong H, Zhu Y. Homogeneity of Supported Single-Atom Active Sites Boosting the Selective Catalytic Transformations. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201520. [PMID: 35808964 PMCID: PMC9404403 DOI: 10.1002/advs.202201520] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/31/2022] [Indexed: 05/09/2023]
Abstract
Selective conversion of specific functional groups to desired products is highly important but still challenging in industrial catalytic processes. The adsorption state of surface species is the key factor in modulating the conversion of functional groups, which is correspondingly determined by the uniformity of active sites. However, the non-identical number of metal atoms, geometric shape, and morphology of conventional nanometer-sized metal particles/clusters normally lead to the non-uniform active sites with diverse geometric configurations and local coordination environments, which causes the distinct adsorption states of surface species. Hence, it is highly desired to modulate the homogeneity of the active sites so that the catalytic transformations can be better confined to the desired direction. In this review, the construction strategies and characterization techniques of the uniform active sites that are atomically dispersed on various supports are examined. In particular, their unique behavior in boosting the catalytic performance in various chemical transformations is discussed, including selective hydrogenation, selective oxidation, Suzuki coupling, and other catalytic reactions. In addition, the dynamic evolution of the active sites under reaction conditions and the industrial utilization of the single-atom catalysts are highlighted. Finally, the current challenges and frontiers are identified, and the perspectives on this flourishing field is provided.
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Affiliation(s)
- Yujie Shi
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxiJiangsu214122P. R. China
- International Joint Research Center for Photoresponsive Molecules and MaterialsJiangnan UniversityWuxiJiangsu214122P. R. China
| | - Yuwei Zhou
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxiJiangsu214122P. R. China
- International Joint Research Center for Photoresponsive Molecules and MaterialsJiangnan UniversityWuxiJiangsu214122P. R. China
| | - Yang Lou
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxiJiangsu214122P. R. China
- International Joint Research Center for Photoresponsive Molecules and MaterialsJiangnan UniversityWuxiJiangsu214122P. R. China
| | - Zupeng Chen
- College of Chemical EngineeringNanjing Forestry UniversityNanjing210037P. R. China
| | - Haifeng Xiong
- College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005P. R. China
| | - Yongfa Zhu
- Department of ChemistryTsinghua UniversityBeijing100084P. R. China
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78
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CO-tolerant RuNi/TiO 2 catalyst for the storage and purification of crude hydrogen. Nat Commun 2022; 13:4404. [PMID: 35906219 PMCID: PMC9338308 DOI: 10.1038/s41467-022-32100-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 07/11/2022] [Indexed: 11/08/2022] Open
Abstract
Hydrogen storage by means of catalytic hydrogenation of suitable organic substrates helps to elevate the volumetric density of hydrogen energy. In this regard, utilizing cheaper industrial crude hydrogen to fulfill the goal of hydrogen storage would show economic attraction. However, because CO impurities in crude hydrogen can easily deactivate metal active sites even in trace amounts such a process has not yet been realized. Here, we develop a robust RuNi/TiO2 catalyst that enables the efficient hydrogenation of toluene to methyl-cyclohexane under simulated crude hydrogen feeds with 1000-5000 ppm CO impurity at around 180 °C under atmospheric pressure. We show that the co-localization of Ru and Ni species during reduction facilitated the formation of tightly coupled metallic Ru-Ni clusters. During the catalytic hydrogenation process, due to the distinct bonding properties, Ru and Ni served as the active sites for CO methanation and toluene hydrogenation respectively. Our work provides fresh insight into the effective utilization and purification of crude hydrogen for the future hydrogen economy.
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79
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Li M, Huang Z, Wang L, Guo S, Fang J, Liu Y, Chen J, Wu X, Shen H, Zhao H, Jing G. Surface Dopants‐Induced Interfacial Bonding Greatly Enhances Active Phase‐Support Interaction of Sintering‐Resistant Catalyst for Automotive CO Oxidation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mingxuan Li
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Zhiwei Huang
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Lipeng Wang
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Sufeng Guo
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Jinxu Fang
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Yuchen Liu
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Junmou Chen
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Xiaomin Wu
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Huazhen Shen
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Huawang Zhao
- Huaqiao University College of Chemical Engineering Department of Environmental Science & Engineering CHINA
| | - Guohua Jing
- Huaqiao university Department of Environmental Science & Engineering Jimei Rouad 668 361021 Xiamen CHINA
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80
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Felvey N, Guo J, Rana R, Xu L, Bare SR, Gates BC, Katz A, Kulkarni AR, Runnebaum RC, Kronawitter CX. Interconversion of Atomically Dispersed Platinum Cations and Platinum Clusters in Zeolite ZSM-5 and Formation of Platinum gem-Dicarbonyls. J Am Chem Soc 2022; 144:13874-13887. [PMID: 35854402 DOI: 10.1021/jacs.2c05386] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Catalysts composed of platinum dispersed on zeolite supports are widely applied in industry, and coking and sintering of platinum during operation under reactive conditions require their oxidative regeneration, with the platinum cycling between clusters and cations. The intermediate platinum species have remained only incompletely understood. Here, we report an experimental and theoretical investigation of the structure, bonding, and local environment of cationic platinum species in zeolite ZSM-5, which are key intermediates in this cycling. Upon exposure of platinum clusters to O2 at 700 °C, oxidative fragmentation occurs, and Pt2+ ions are stabilized at six-membered rings in the zeolite that contain paired aluminum sites. When exposed to CO under mild conditions, these Pt2+ ions form highly uniform platinum gem-dicarbonyls, which can be converted in H2 to Ptδ+ monocarbonyls. This conversion, which weakens the platinum-zeolite bonding, is a first step toward platinum migration and aggregation into clusters. X-ray absorption and infrared spectra provide evidence of the reductive and oxidative transformations in various gas environments. The chemistry is general, as shown by the observation of platinum gem-dicarbonyls in several commercially used zeolites (ZSM-5, Beta, mordenite, and Y).
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Affiliation(s)
- Noah Felvey
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Jiawei Guo
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Rachita Rana
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Le Xu
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Bruce C Gates
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Alexander Katz
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Ambarish R Kulkarni
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Ron C Runnebaum
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Coleman X Kronawitter
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
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81
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Hydrogen spillover and its relation to hydrogenation: observations on structurally defined single‐atom sites. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208237] [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]
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82
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Wang Y, Schumann J, Happel EE, Çınar V, Sykes ECH, Stamatakis M, Michaelides A, Hannagan RT. Observation and Characterization of Dicarbonyls on a RhCu Single-Atom Alloy. J Phys Chem Lett 2022; 13:6316-6322. [PMID: 35792939 DOI: 10.1021/acs.jpclett.2c01596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Dicarbonyl species are ubiquitous on Rh/oxide catalysts and are known to form on Rh+ centers. However, dicarbonyl species have never been directly observed on single-atom alloys (SAAs) where the active site is metallic. Herein, using surface science and theoretical modeling, we provide evidence of dicarbonyl species at isolated Rh sites on a RhCu(100) SAA. This approach not only enables us to directly visualize dicarbonyl species at Rh sites but also demonstrates that the transition between the mono- and dicarbonyl configuration can be achieved by changing surface temperature and CO pressure. Density functional theory calculations further support the mono- and dicarbonyl assignments and provide evidence that these species should be stable on other SAA combinations. Together, these results provide a picture of the structure and energetics of both the mono- and dicarbonyl configurations on the RhCu(100) SAA surface and should aid with IR assignments on SAA nanoparticle catalysts.
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Affiliation(s)
- Yicheng Wang
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Julia Schumann
- Department of Chemical Engineering, University College London, London WC1E 7JE, U.K
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
- Department of Physics and Astronomy, University College London, London WC1E 6BT, U.K
| | - Elizabeth E Happel
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Volkan Çınar
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - E Charles H Sykes
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Michail Stamatakis
- Department of Chemical Engineering, University College London, London WC1E 7JE, U.K
| | - Angelos Michaelides
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
- Department of Physics and Astronomy, University College London, London WC1E 6BT, U.K
| | - Ryan T Hannagan
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
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83
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Jiang Z, Tian M, Jing M, Chai S, Jian Y, Chen C, Douthwaite M, Zheng L, Ma M, Song W, Liu J, Yu J, He C. Modulating the Electronic Metal-Support Interactions in Single-Atom Pt 1 -CuO Catalyst for Boosting Acetone Oxidation. Angew Chem Int Ed Engl 2022; 61:e202200763. [PMID: 35347821 DOI: 10.1002/anie.202200763] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Indexed: 01/17/2023]
Abstract
The development of highly active single-atom catalysts (SACs) and identifying their intrinsic active sites in oxidizing industrial hazardous hydrocarbons are challenging prospects. Tuning the electronic metal-support interactions (EMSIs) is valid for modulating the catalytic performance of SACs. We propose that the modulation of the EMSIs in a Pt1 -CuO SAC significantly promotes the activity of the catalyst in acetone oxidation. The EMSIs promote charge redistribution through the unified Pt-O-Cu moieties, which modulates the d-band structure of atomic Pt sites, and strengthens the adsorption and activation of reactants. The positively charged Pt atoms are superior for activating acetone at low temperatures, and the stretched Cu-O bonds facilitate the activation of lattice oxygen atoms to participate in subsequent oxidation. We believe that this work will guide researchers to engineer efficient SACs for application in hydrocarbon oxidation reactions.
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Affiliation(s)
- Zeyu Jiang
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China.,Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Mingjiao Tian
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China.,Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Meizan Jing
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, P. R. China
| | - Shouning Chai
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Yanfei Jian
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Changwei Chen
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Mark Douthwaite
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Mudi Ma
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, P. R. China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China.,National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, P. R. China
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84
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Chen F, Sun W, Zhang D, Guo F, Zhan S, Shen Z. Identification of the Stable Pt Single Sites in the Environment of Ions: From Mechanism to Design Principle. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108504. [PMID: 35436010 DOI: 10.1002/adma.202108504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 03/22/2022] [Indexed: 06/14/2023]
Abstract
For single-atom (SA)-based catalysis, it is urgent to understand the nature and dynamic evolution of SA active sites during the reactions. In this work, an example of Pt SA-Zn0.5 Cd0.5 S (Pt SA-ZCS) is found to display interesting phenomena when facing the Brownian collision of ions in aqueous photocatalysis. Via synchrotron radiation, surface techniques, microscopy, and theory calculations, the results show that two kinds of Pt sites exist: PtZn-sub -S3 (Pt substituting the Zn site) and Ptads -S2 (Pt adsorbing on the surface). In Na2 S, the S2- can coordinate with Pt atoms and peel them from the Ptads -S2 sites, but leaves more stable PtZn-sub -S3 sites, bringing a low but stable catalytic activity (19.40 mmol g-1 h-1 ). Meanwhile, in ascorbic acid, the ascorbic acid ions show less complex ability with Pt atoms, but can decrease the migration barrier of Ptads -S2 sites (67.18 down to 35.96 mmol g-1 h-1 , 52.03% drop after 6 h). Therefore, the Ptads -S2 sites gradually aggregate into nanoclusters, bringing a high but decayed catalytic activity. Moreover, a Pt SA-ZCS-Sulfur composite is designed mainly covered by PtZn-sub -S3 sites accordingly (max: 79.09 mmol g-1 h-1 , 5% drop after 6 h and QE: 14.0% at 420 nm), showing a beneficial strategy "from mechanism to design principle."
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Affiliation(s)
- Fangyuan Chen
- 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
| | - Wenming Sun
- College of Science, China Agricultural University, Beijing, 100193, P. R. China
| | - Dongpeng Zhang
- 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
| | - Fa Guo
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, 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
| | - Zhurui Shen
- 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
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
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85
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Hiragond CB, Powar NS, Lee J, In SI. Single-Atom Catalysts (SACs) for Photocatalytic CO 2 Reduction with H 2 O: Activity, Product Selectivity, Stability, and Surface Chemistry. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201428. [PMID: 35695355 DOI: 10.1002/smll.202201428] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/14/2022] [Indexed: 06/15/2023]
Abstract
In recent years, single-atom catalysts (SACs) have attracted the interest of researchers owing to their suitability for various catalytic applications. For instance, their optoelectronic features, site-specific activity, and cost-effectiveness make SACs ideal for photocatalytic CO2 reduction. The activity, product selectivity, and photostability of SACs depend on various factors such as the nature of the metal/support material, the interaction between the metal atoms and support, light-harvesting ability, charge separation behavior, CO2 adsorption ability, active sites, and defects. Consequently, it is necessary to investigate these factors in depth to elucidate the working principle(s) of SACs for catalytic applications. Herein, the recent progress in the development of SACs for photocatalytic CO2 reduction with H2 O is reviewed. First, a brief overview of CO2 photoreduction and SACs for CO2 conversion is provided. Several synthesis strategies and useful techniques for characterizing SACs employed in heterogeneous catalysis are then described. Next, the challenges of SACs for photocatalytic CO2 reduction and related optimization strategies, in terms of activity, product selectivity, and stability, are explored. The progress in the development of noble metal- and transition metal-based SACs and dual-SACs for photocatalytic CO2 reduction is discussed. Finally, the prospects of SACs for CO2 reduction are considered.
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Affiliation(s)
- Chaitanya B Hiragond
- Department of Energy Science & Engineering, DGIST, 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988, Republic of Korea
| | - Niket S Powar
- Department of Energy Science & Engineering, DGIST, 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988, Republic of Korea
| | - Junho Lee
- Department of Energy Science & Engineering, DGIST, 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988, Republic of Korea
| | - Su-Il In
- Department of Energy Science & Engineering, DGIST, 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988, Republic of Korea
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86
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Kumar P, Al-Attas TA, Hu J, Kibria MG. Single Atom Catalysts for Selective Methane Oxidation to Oxygenates. ACS NANO 2022; 16:8557-8618. [PMID: 35638813 DOI: 10.1021/acsnano.2c02464] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Direct conversion of methane (CH4) to C1-2 liquid oxygenates is a captivating approach to lock carbons in transportable value-added chemicals, while reducing global warming. Existing approaches utilizing the transformation of CH4 to liquid fuel via tandemized steam methane reforming and the Fischer-Tropsch synthesis are energy and capital intensive. Chemocatalytic partial oxidation of methane remains challenging due to the negligible electron affinity, poor C-H bond polarizability, and high activation energy barrier. Transition-metal and stoichiometric catalysts utilizing harsh oxidants and reaction conditions perform poorly with randomized product distribution. Paradoxically, the catalysts which are active enough to break C-H also promote overoxidation, resulting in CO2 generation and reduced carbon balance. Developing catalysts which can break C-H bonds of methane to selectively make useful chemicals at mild conditions is vital to commercialization. Single atom catalysts (SACs) with specifically coordinated metal centers on active support have displayed intrigued reactivity and selectivity for methane oxidation. SACs can significantly reduce the activation energy due to induced electrostatic polarization of the C-H bond to facilitate the accelerated reaction rate at the low reaction temperature. The distinct metal-support interaction can stabilize the intermediate and prevent the overoxidation of the reaction products. The present review accounts for recent progress in the field of SACs for the selective oxidation of CH4 to C1-2 oxygenates. The chemical nature of catalytic sites, effects of metal-support interaction, and stabilization of intermediate species on catalysts to minimize overoxidation are thoroughly discussed with a forward-looking perspective to improve the catalytic performance.
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Affiliation(s)
- Pawan Kumar
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Tareq A Al-Attas
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Md Golam Kibria
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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87
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Gu R, Meng D, She M, Wang Y, Yang H, Guo X, Xue N, Ding W. Appropriate aggregation is needed for highly active Pt/Al 2O 3 to enable hydrogenation of chlorinated nitrobenzene. Chem Commun (Camb) 2022; 58:7630-7633. [PMID: 35713001 DOI: 10.1039/d2cc00940d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The atomic dispersion of a noble metal with a reducible support has been reported to be beneficial for catalytic hydrogenation reactions. Conversely, we found that Pt particles (3-5 nm) could be obtained on the non-reducible support Al2O3 by weakening the interaction between the metal and support using oleic acid, and the turnover frequency of catalyzing the hydrogenation of chlorinated nitrobenzene could reach 3700 h-1, which is three orders of magnitude higher than that of atomic platinum species.
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Affiliation(s)
- Rongtian Gu
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Deming Meng
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Minyi She
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Yibo Wang
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Hua Yang
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Xiangke Guo
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Nianhua Xue
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Weiping Ding
- Key Lab of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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88
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Kumar A, Dutta S, Kim S, Kwon T, Patil SS, Kumari N, Jeevanandham S, Lee IS. Solid-State Reaction Synthesis of Nanoscale Materials: Strategies and Applications. Chem Rev 2022; 122:12748-12863. [PMID: 35715344 DOI: 10.1021/acs.chemrev.1c00637] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanomaterials (NMs) with unique structures and compositions can give rise to exotic physicochemical properties and applications. Despite the advancement in solution-based methods, scalable access to a wide range of crystal phases and intricate compositions is still challenging. Solid-state reaction (SSR) syntheses have high potential owing to their flexibility toward multielemental phases under feasibly high temperatures and solvent-free conditions as well as their scalability and simplicity. Controlling the nanoscale features through SSRs demands a strategic nanospace-confinement approach due to the risk of heat-induced reshaping and sintering. Here, we describe advanced SSR strategies for NM synthesis, focusing on mechanistic insights, novel nanoscale phenomena, and underlying principles using a series of examples under different categories. After introducing the history of classical SSRs, key theories, and definitions central to the topic, we categorize various modern SSR strategies based on the surrounding solid-state media used for nanostructure growth, conversion, and migration under nanospace or dimensional confinement. This comprehensive review will advance the quest for new materials design, synthesis, and applications.
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Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Soumen Dutta
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seonock Kim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Santosh S Patil
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sampathkumar Jeevanandham
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Korea
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89
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Effect of TiO 2 Calcination Pretreatment on the Performance of Pt/TiO 2 Catalyst for CO Oxidation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123875. [PMID: 35744997 PMCID: PMC9227817 DOI: 10.3390/molecules27123875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 11/19/2022]
Abstract
In order to improve the CO catalytic oxidation performance of a Pt/TiO2 catalyst, a series of Pt/TiO2 catalysts were prepared via an impregnation method in this study, and various characterization methods were used to explore the effect of TiO2 calcination pretreatment on the CO catalytic oxidation performance of the catalysts. The results revealed that Pt/TiO2 (700 °C) prepared by TiO2 after calcination pretreatment at 700 °C exhibits a superior CO oxidation activity at low temperatures. After calcination pretreatment, the catalyst exhibited a suitable specific surface area and pore structure, which is beneficial to the diffusion of reactants and reaction products. At the same time, the proportion of adsorbed oxygen on the catalyst surface was increased, which promoted the oxidation of CO. After calcination pretreatment, the adsorption capacity of the catalyst for CO and CO2 decreased, which was beneficial for the simultaneous inhibition of the CO self-poisoning of Pt sites. In addition, the Pt species exhibited a higher degree of dispersion and a smaller particle size, thereby increasing the CO oxidation activity of the Pt/TiO2 (700 °C) catalyst.
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90
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Muravev V, Simons JFM, Parastaev A, Verheijen MA, Struijs JJC, Kosinov N, Hensen EJM. Operando Spectroscopy Unveils the Catalytic Role of Different Palladium Oxidation States in CO Oxidation on Pd/CeO
2
Catalysts. Angew Chem Int Ed Engl 2022; 61:e202200434. [PMID: 35303388 PMCID: PMC9325467 DOI: 10.1002/anie.202200434] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Indexed: 11/18/2022]
Abstract
Aiming at knowledge‐driven design of novel metal–ceria catalysts for automotive exhaust abatement, current efforts mostly pertain to the synthesis and understanding of well‐defined systems. In contrast, technical catalysts are often heterogeneous in their metal speciation. Here, we unveiled rich structural dynamics of a conventional impregnated Pd/CeO2 catalyst during CO oxidation. In situ X‐ray photoelectron spectroscopy and operando X‐ray absorption spectroscopy revealed the presence of metallic and oxidic Pd states during the reaction. Using transient operando infrared spectroscopy, we probed the nature and reactivity of the surface intermediates involved in CO oxidation. We found that while low‐temperature activity is associated with sub‐oxidized and interfacial Pd sites, the reaction at elevated temperatures involves metallic Pd. These results highlight the utility of the multi‐technique operando approach for establishing structure–activity relationships of technical catalysts.
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Affiliation(s)
- Valery Muravev
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jérôme F. M. Simons
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Alexander Parastaev
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Marcel A. Verheijen
- Department of Applied Physics Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
- Eurofins Material Science Netherlands BV 5656AE Eindhoven The Netherlands
| | - Job J. C. Struijs
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Nikolay Kosinov
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
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91
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Fan J, Zhao Y, Du H, Zheng L, Gao M, Li D, Feng J. Light-Induced Structural Dynamic Evolution of Pt Single Atoms for Highly Efficient Photocatalytic CO 2 Reduction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:26752-26765. [PMID: 35666270 DOI: 10.1021/acsami.2c04794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Revealing the structural evolution of the real active site during photocatalysis is very important for understanding the catalytic mechanism, but it remains a great challenge. By employing single atoms (SAs) as the mechanism research platform, we investigated the variation of the SA structure under light and the corresponding reaction pathway controlment mechanism. In particular, taking the defect anchoring strategy, Pt SAs are anchored on the metal ion vacancy-rich ZnNiTi layered double hydroxide-etched (ZnNiTi-LDHs-E) support. It is proved by CO-Fourier transform infrared and X-ray absorption fine structure characterization methods that the Pt SAs could gain photoelectrons to form cationic Pt(IV), electron-rich Pt(II), and near-neutral Ptδ+ species at different light intensities. By in situ inducing the above different Pt SAs in photocatalytic CO2 reduction, a dramatic product distribution is observed: (1) under weak light, Pt(IV) SAs cannot activate CO, so CO cannot be further transformed into hydrocarbons; (2) under the moderate light, electron-rich Pt(II) SAs could cooperate with adjacent LDH surface sites (Ni2+/Ti4+) to open up the C-C coupling route for C2H6 generation; and (3) Pt SAs in the state of near-neutral Ptδ+ could directly hydrogenate CO into CH4. This work reveals the structural evolution of Pt SAs in photocatalysis and the corresponding effect on catalytic performance, which provides a new idea for the construction of highly efficient photocatalysts.
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Affiliation(s)
- Jiaxuan Fan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
- Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Yin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Haoxuan Du
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Mingyu Gao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
- Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Dianqing Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
- Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Junting Feng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
- Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, 100029 Beijing, China
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92
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The effect of coordination environment on the activity and selectivity of single-atom catalysts. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214493] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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93
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Pan Y, Xu L, He W, Li H, Chen W, Sun Z. Optimizing the synergy between alloy and alloy-oxide interface for CO oxidation in bimetallic catalysts. NANOSCALE 2022; 14:7303-7313. [PMID: 35532914 DOI: 10.1039/d2nr01171a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Creating synergetic metal-oxide interfaces is a promising strategy to promote the catalytic performance of heterogeneous catalysts. However, this strategy has been mainly applied to monometallic catalysts, while scarcely applied to alloy catalysts. In this work, we present a comprehensive study on the synergetic alloy-oxide interfaces in the bimetallic Pt-Co/Al2O3 catalysts for CO oxidation. A series of Pt1Cox/Al2O3 catalysts with various Co/Pt molar ratios with x ranging from 0.5 to 3.8 was synthesized via a facile wet-chemistry strategy. Among them, the Pt1Co0.5/Al2O3 catalyst exhibits the best catalytic performance for CO oxidation, with the lowest CO complete conversion temperature of -10 °C and the highest mass specific rate of 2.61 (mol CO) h-1 (g Pt)-1. From in situ X-ray absorption fine structure and diffuse reflectance infrared Fourier-transform spectroscopy studies, the superior catalytic performance of Pt1Co0.5/Al2O3 originates from the optimal length of the three-dimensional alloy-oxide perimeter sites. We further extended this strategy to other bimetallic systems of Pt-Fe and Pt-Ni, which also show similar structural properties and remarkable promotional effects on the catalytic activity.
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Affiliation(s)
- Ya Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China.
| | - Liuxin Xu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China.
| | - Wenxue He
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China.
| | - Hongmei Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China.
| | - Wei Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China.
| | - Zhihu Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China.
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94
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Jiang Z, Tian M, Jing M, Chai S, Jian Y, Chen C, Douthwaite M, Zheng L, Ma M, Song W, Liu J, Yu J, He C. Modulating the Electronic Metal‐Support Interactions in Single‐Atom Pt
1
−CuO Catalyst for Boosting Acetone Oxidation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zeyu Jiang
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
- Department of Chemistry National University of Singapore Singapore 117543 Singapore
| | - Mingjiao Tian
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 P. R. China
| | - Meizan Jing
- State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P. R. China
| | - Shouning Chai
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Yanfei Jian
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Changwei Chen
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Mark Douthwaite
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis School of Chemistry Cardiff University Cardiff CF10 3AT UK
| | - Lirong Zheng
- Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Mudi Ma
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P. R. China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 P. R. China
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
- National Engineering Laboratory for VOCs Pollution Control Material & Technology University of Chinese Academy of Sciences Beijing 101408 P. R. China
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95
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Guo Y, Huang Y, Zeng B, Han B, Akri M, Shi M, Zhao Y, Li Q, Su Y, Li L, Jiang Q, Cui YT, Li L, Li R, Qiao B, Zhang T. Photo-thermo semi-hydrogenation of acetylene on Pd 1/TiO 2 single-atom catalyst. Nat Commun 2022; 13:2648. [PMID: 35551203 PMCID: PMC9098498 DOI: 10.1038/s41467-022-30291-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 04/12/2022] [Indexed: 11/16/2022] Open
Abstract
Semi-hydrogenation of acetylene in excess ethylene is a key industrial process for ethylene purification. Supported Pd catalysts have attracted most attention due to their superior intrinsic activity but often suffer from low selectivity. Pd single-atom catalysts (SACs) are promising to significantly improve the selectivity, but the activity needs to be improved and the feasible preparation of Pd SACs remains a grand challenge. Here, we report a simple strategy to construct Pd1/TiO2 SACs by selectively encapsulating the co-existed small amount of Pd nanoclusters/nanoparticles based on their different strong metal-support interaction (SMSI) occurrence conditions. In addition, photo-thermo catalysis has been applied to this process where a much-improved catalytic activity was obtained. Detailed characterization combined with DFT calculation suggests that photo-induced electrons transferred from TiO2 to the adjacent Pd atoms facilitate the activation of acetylene. This work offers an opportunity to develop highly stable Pd SACs for efficient catalytic semi-hydrogenation process. Semi-hydrogenation of acetylene in excess ethylene is a key industrial process for ethylene purification. Here the authors develop highly stable Pd1/TiO2 single-atom catalyst for photo-thermo semi-hydrogenation of acetylene.
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Affiliation(s)
- Yalin Guo
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yike Huang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Bin Zeng
- University of Chinese Academy of Sciences, Beijing, China.,State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Bing Han
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Mohcin Akri
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Ming Shi
- University of Chinese Academy of Sciences, Beijing, China.,State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yue Zhao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Qinghe Li
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yang Su
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Lin Li
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Qike Jiang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yi-Tao Cui
- SANKA High Technology Co. Ltd. 90-1, Tatsuno, Hyogo, Japan
| | - Lei Li
- Synchrotron Radiation Research Center, Hyogo Science and Technology Association, Hyogo, Japan
| | - Rengui Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
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96
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Gomez LA, Bababrik R, Komarneni MR, Marlowe J, Salavati-fard T, D’Amico AD, Wang B, Christopher P, Crossley SP. Selective Reduction of Carboxylic Acids to Aldehydes with Promoted MoO 3 Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01350] [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)
- Laura A. Gomez
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Reda Bababrik
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Mallikharjuna R. Komarneni
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Justin Marlowe
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Taha Salavati-fard
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Andrew D. D’Amico
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Bin Wang
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Phillip Christopher
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Steven P. Crossley
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
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97
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Abstract
A large signal of gas-phase CO overlapping with those of adsorbates is often present when investigating catalysts by operando diffuse reflectance FT-IR spectroscopy. Physically removing CO(g) from the IR cell may lead to a fast decay of adsorbate signals. Our work shows that carbonyls adsorbed on metallic Pt sites fully vanished in less than 10 min at 30 °C upon removing CO(g) when redox supports were used. In contrast, a broad band assigned to CO adsorbed on oxidized Pt sites was stable. It was concluded that physically removing CO(g) at room temperature during IR analyses will most likely lead to changes in the distribution of CO(ads) and a misrepresentation of the Pt site speciation, misguiding the development of efficient low-temperature CO oxidation catalysts. A tentative representation of the nature of the Pt phases present depending on the feed composition is also proposed.
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98
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Wan W, Geiger J, Berdunov N, Lopez Luna M, Chee SW, Daelman N, López N, Shaikhutdinov S, Roldan Cuenya B. Highly Stable and Reactive Platinum Single Atoms on Oxygen Plasma-Functionalized CeO 2 Surfaces: Nanostructuring and Peroxo Effects. Angew Chem Int Ed Engl 2022; 61:e202112640. [PMID: 35243735 PMCID: PMC9315031 DOI: 10.1002/anie.202112640] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Indexed: 12/12/2022]
Abstract
Atomically dispersed precious metals on oxide supports have recently become increasingly interesting catalytic materials. Nonetheless, their non‐trivial preparation and limited thermal and environmental stability constitutes an issue for their potential applications. Here we demonstrate that an oxygen plasma pre‐treatment of the ceria (CeO2) surface serves to anchor Pt single atoms, making them active and resistant towards sintering in the CO oxidation reaction. Through a combination of experimental results obtained on well‐defined CeO2 films and theory, we show that the O2 plasma causes surface nanostructuring and the formation of surface peroxo (O22−) species, favoring the uniform and dense distribution of isolated strongly bonded Pt2+ atoms. The promotional effect of the plasma treatment was further demonstrated on powder Pt/CeO2 catalysts. We believe that plasma functionalization can be applied to other metal/oxide systems to achieve tunable and stable catalysts with a high density of active sites.
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Affiliation(s)
- Weiming Wan
- Department of Interface Science, Fritz Haber Institute, Faradayweg 4-6, 14195, Berlin, Germany
| | - Julian Geiger
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology Institution, 43007, Tarragona, Spain
| | - Nikolay Berdunov
- Department of Interface Science, Fritz Haber Institute, Faradayweg 4-6, 14195, Berlin, Germany
| | - Mauricio Lopez Luna
- Department of Interface Science, Fritz Haber Institute, Faradayweg 4-6, 14195, Berlin, Germany
| | - See Wee Chee
- Department of Interface Science, Fritz Haber Institute, Faradayweg 4-6, 14195, Berlin, Germany
| | - Nathan Daelman
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology Institution, 43007, Tarragona, Spain
| | - Núria López
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology Institution, 43007, Tarragona, Spain
| | - Shamil Shaikhutdinov
- Department of Interface Science, Fritz Haber Institute, Faradayweg 4-6, 14195, Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz Haber Institute, Faradayweg 4-6, 14195, Berlin, Germany
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99
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Flower-like Co3O4 Catalysts for Efficient Catalytic Oxidation of Multi-Pollutants from Diesel Exhaust. Catalysts 2022. [DOI: 10.3390/catal12050527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nowadays, the oxidation activity at the low-temperature regime for Co3O4 catalysts needs to be improved to meet the stringent regulation of multi-pollutant diesel exhaust. Herein, nanoflower-like Co3O4 diesel oxide catalysts (DOCs) were fabricated with the addition of a low-content Pt to trigger better catalytic activities for oxidizing multi-pollutants (CO, C3H6, and NO) emissions by taking advantage of the strong-metal supporting interaction. Compared to the conventional DOCs based on Pt/Al2O3, the as-synthesized Pt/Co3O4 catalysts not only exhibited better multi-pollutants oxidation activities at the low temperature but also obtained better resistance toward NO inhibition. Moreover, Pt/Co3O4 catalysts showed exceptional hydrothermal durability throughout long-term tests in the presence of water vapor. According to the XPS and H2-TPR results, Pt promoted low-temperature catalytic activity by increasing the active surface oxygen species and reducibility due to the robust synergistic interaction between metallic Pt and supporting Co3O4. Meanwhile, TGA curves confirmed the Pt atoms that facilitated the desorption of surface-active oxygen and hydroxyl radicals in a low-temperature regime. Furthermore, instead of probing the intermediates during CO and C3H6 oxidation for Pt/Co3O4 catalysts, which included carbonates, formate, and acetate species, in situ DRIFTs experiments also revealed C3H6 oxidation mainly took place over metallic Pt sites.
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100
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Ghosh S, Acharyya SS, Yoshida Y, Kaneko T, Iwasawa Y, Sasaki T. Nontraditional Aldol Condensation Performance of Highly Efficient and Reusable Cs + Single Sites in β-Zeolite Channels. ACS APPLIED MATERIALS & INTERFACES 2022; 14:18464-18475. [PMID: 35426658 DOI: 10.1021/acsami.2c01312] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Aldol reactions (self- and cross-aldol condensations) for conjugated enone synthesis were efficiently performed on large-sized Cs+ single sites (1 wt %) confined in β-zeolite channels in toluene, which showed the highest level of catalytic aldol condensation activity among reported zeolite catalysts. In general, aldol condensation reactions for C-C bond synthesis can proceed by acids (e.g., H+), bases (e.g., OH-), enolate species, and acidic or basic solid catalysts. However, the Cs+ single site/β sample without significant acid-base property showed unprecedented, efficient, and reusable catalysis for self-aldol and cross-aldol condensations. Intrinsically inactive Cs+ single sites due to the noble-gas electronic structure were transformed to active Cs+ single sites in β-zeolite channels. Cs+/β has many advantages such as broad substrate scope, eco-friendliness, high product selectivity and yield, and simple work-up procedure. Thus, the Cs+ single site/β provides an attractive and useful methodology for practical C-C bond synthesis. On the basis of the Cs+/β characterization by X-ray photoelectron spectroscopy (XPS), in situ X-ray absorption fine structure (XAFS) (X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS)), and temperature-programmed desorption (TPD), density functional theory (DFT) calculations of the self- and cross-aldol condensation reaction pathways involving the transition states on the Cs+ single site in β-zeolite channel revealed nontraditional concerted interligand bond rearrangement mechanisms.
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Affiliation(s)
- Shilpi Ghosh
- Innovation Research Center for Fuel Cells, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - Shankha S Acharyya
- Innovation Research Center for Fuel Cells, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - Yusuke Yoshida
- Innovation Research Center for Fuel Cells, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - Takuma Kaneko
- Innovation Research Center for Fuel Cells, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - Yasuhiro Iwasawa
- Innovation Research Center for Fuel Cells, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - Takehiko Sasaki
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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