1
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Yang J, Zheng J, Dun C, Falling LJ, Zheng Q, Chen JL, Zhang M, Jaegers NR, Asokan C, Guo J, Salmeron M, Prendergast D, Urban JJ, Somorjai GA, Guo Y, Su J. Unveiling Highly Sensitive Active Site in Atomically Dispersed Gold Catalysts for Enhanced Ethanol Dehydrogenation. Angew Chem Int Ed Engl 2024; 63:e202408894. [PMID: 38830120 DOI: 10.1002/anie.202408894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/05/2024]
Abstract
Developing a desirable ethanol dehydrogenation process necessitates a highly efficient and selective catalyst with low cost. Herein, we show that the "complex active site" consisting of atomically dispersed Au atoms with the neighboring oxygen vacancies (Vo) and undercoordinated cation on oxide supports can be prepared and display unique catalytic properties for ethanol dehydrogenation. The "complex active site" Au-Vo-Zr3+ on Au1/ZrO2 exhibits the highest H2 production rate, with above 37,964 mol H2 per mol Au per hour (385 g H2 g Au - 1 ${{\rm{g}}_{{\rm{Au}}}^{ - 1} }$ h-1) at 350 °C, which is 3.32, 2.94 and 15.0 times higher than Au1/CeO2, Au1/TiO2, and Au1/Al2O3, respectively. Combining experimental and theoretical studies, we demonstrate the structural sensitivity of these complex sites by assessing their selectivity and activity in ethanol dehydrogenation. Our study sheds new light on the design and development of cost-effective and highly efficient catalysts for ethanol dehydrogenation. Fundamentally, atomic-level catalyst design by colocalizing catalytically active metal atoms forming a structure-sensitive "complex site", is a crucial way to advance from heterogeneous catalysis to molecular catalysis. Our study advanced the understanding of the structure sensitivity of the active site in atomically dispersed catalysts.
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Affiliation(s)
- Ji Yang
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
- College of Chemistry, Central China Normal University, 430079, Wuhan, People's Republic of China
- The Molecular Foundry, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - Juan Zheng
- College of Chemistry, Central China Normal University, 430079, Wuhan, People's Republic of China
| | - Chaochao Dun
- The Molecular Foundry, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - Lorenz J Falling
- Advanced Light Source, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - Qi Zheng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - Jeng-Lung Chen
- National Synchrotron Radiation Research Center, Science-Based Industrial Park, 30076, Hsinchu, Taiwan
| | - Miao Zhang
- College of Chemistry, University of California-Berkeley, 94720, Berkeley, California, United States
| | - Nicholas R Jaegers
- College of Chemistry, University of California-Berkeley, 94720, Berkeley, California, United States
| | - Chithra Asokan
- College of Chemistry, University of California-Berkeley, 94720, Berkeley, California, United States
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - Miquel Salmeron
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - David Prendergast
- The Molecular Foundry, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - Jeffrey J Urban
- The Molecular Foundry, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
| | - Gabor A Somorjai
- College of Chemistry, University of California-Berkeley, 94720, Berkeley, California, United States
| | - Yanbing Guo
- College of Chemistry, Central China Normal University, 430079, Wuhan, People's Republic of China
| | - Ji Su
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, California, United States
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2
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Li W, Madan SE, Réocreux R, Stamatakis M. Elucidating the Reactivity of Oxygenates on Single-Atom Alloy Catalysts. ACS Catal 2023; 13:15851-15868. [PMID: 38125982 PMCID: PMC10729050 DOI: 10.1021/acscatal.3c03954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 12/23/2023]
Abstract
Doping isolated transition metal atoms into the surface of coinage-metal hosts to form single-atom alloys (SAAs) can significantly improve the catalytic activity and selectivity of their monometallic counterparts. These atomically dispersed dopant metals on the SAA surface act as highly active sites for various bond coupling and activation reactions. In this study, we investigate the catalytic properties of SAAs with different bimetallic combinations [Ni-, Pd-, Pt-, and Rh-doped Cu(111), Ag(111), and Au(111)] for chemistries involving oxygenates relevant to biomass reforming. Density functional theory is employed to calculate and compare the formation energies of species such as methoxy (CH3O), methanol (CH3OH), and hydroxymethyl (CH2OH), thereby understanding the stability of these adsorbates on SAAs. Activation energies and reaction energies of C-O coupling, C-H activation, and O-H activation on these oxygenates are then computed. Analysis of the data in terms of thermochemical linear scaling and Bro̷nsted-Evans-Polanyi relationship shows that some SAAs have the potential to combine weak binding with low activation energies, thereby exhibiting enhanced catalytic behavior over their monometallic counterparts for key elementary steps of oxygenate conversion. This work contributes to the discovery and development of SAA catalysts toward greener technologies, having potential applications in the transition from fossil to renewable fuels and chemicals.
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Affiliation(s)
- Weitian Li
- Thomas
Young Centre and Department of Chemical Engineering, University College London, Roberts Building, Torrington Place, London WC1E 7JE, U.K.
| | - Simran Effricia Madan
- Thomas
Young Centre and Department of Chemical Engineering, University College London, Roberts Building, Torrington Place, London WC1E 7JE, U.K.
| | - Romain Réocreux
- Thomas
Young Centre and Department of Chemical Engineering, University College London, Roberts Building, Torrington Place, London WC1E 7JE, U.K.
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield
Road, Cambridge CB2 1EW, U.K.
| | - Michail Stamatakis
- Thomas
Young Centre and Department of Chemical Engineering, University College London, Roberts Building, Torrington Place, London WC1E 7JE, U.K.
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3
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Patel DA, Giannakakis G, Yan G, Ngan HT, Yu P, Hannagan RT, Kress PL, Shan J, Deshlahra P, Sautet P, Sykes ECH. Mechanistic Insights into Nonoxidative Ethanol Dehydrogenation on NiCu Single-Atom Alloys. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Affiliation(s)
- Dipna A. Patel
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Georgios Giannakakis
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - George Yan
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Hio Tong Ngan
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Peng Yu
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Ryan T. Hannagan
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Paul L. Kress
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Junjun Shan
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Prashant Deshlahra
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Philippe Sautet
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - E. Charles H. Sykes
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
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4
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Takeyasu K, Sawaki Y, Imabayashi T, Putra SEM, Halim HH, Quan J, Hamamoto Y, Hamada I, Morikawa Y, Kondo T, Fujitani T, Nakamura J. Hydrogenation of Formate Species Using Atomic Hydrogen on a Cu(111) Model Catalyst. J Am Chem Soc 2022; 144:12158-12166. [PMID: 35762507 DOI: 10.1021/jacs.2c02797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The reaction mechanism of the CH3OH synthesis by the hydrogenation of CO2 on Cu catalysts is unclear because of the challenge in experimentally detecting reaction intermediates formed by the hydrogenation of adsorbed formate (HCOOa). Thus, the objective of this study is to clarify the reaction mechanism of the CH3OH synthesis by establishing the kinetic natures of intermediates formed by the hydrogenation of adsorbed HCOOa on Cu(111). We exposed HCOOa on Cu(111) to atomic hydrogen at low temperatures of 200-250 K and observed the species using infrared reflection absorption (IRA) spectroscopy and temperature-programmed desorption (TPD) studies. In the IRA spectra, a new peak was observed upon the exposure of HCOOa on Cu(111) to atomic hydrogen at 200 K and was assigned to the adsorbed dioxymethylene (H2COOa) species. The intensity of the new peak gradually decreased with heating from 200 to 290 K, whereas the IR peaks representing HCOOa species increased correspondingly. In addition, small amounts of formaldehyde (HCHO), which were formed by the exposure of HCOOa species to atomic hydrogen, were detected in the TPD studies. Therefore, H2COOa is formed via hydrogenation by atomic hydrogen, which thermally decomposes at ∼250 K on Cu(111). We propose a potential diagram of the CH3OH synthesis via H2COOa from CO2 on Cu surfaces, with the aid of density functional theory calculations and literature data, in which the hydrogenation of bidentate HCOOa to H2COOa is potentially the rate-determining step and accounts for the apparent activation energy of the methanol synthesis from CO2 on Cu surfaces.
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Affiliation(s)
- Kotaro Takeyasu
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.,Tsukuba Research Centre for Energy and Materials Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.,R&D Center for Zero CO2 Emission with Functional Materials, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Yasutaka Sawaki
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Takumi Imabayashi
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Septia Eka Marsha Putra
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Harry Handoko Halim
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Jiamei Quan
- Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, 37077 Göttingen, Germany.,Institute for Physical Chemistry, Georg-August-University Goettingen, Tammannstrasse 6, Göttingen D-37077, Germany
| | - Yuji Hamamoto
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Ikutaro Hamada
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yoshitada Morikawa
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.,Research Center for Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Takahiro Kondo
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.,Tsukuba Research Centre for Energy and Materials Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.,R&D Center for Zero CO2 Emission with Functional Materials, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Tadahiro Fujitani
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Azuma, Tsukuba, Ibaraki 305-0046, Japan
| | - Junji Nakamura
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.,Tsukuba Research Centre for Energy and Materials Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.,R&D Center for Zero CO2 Emission with Functional Materials, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.,Mitsui Chemicals, Inc. - Carbon Neutral Energy Research Center (MCI-CNRC), International Institute for Carbon-Neutral Energy Research (I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka-shi, Fukuoka 819-0395, Japan
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5
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Xu Z, Ao Z, Yang M, Wang S. Recent progress in single-atom alloys: Synthesis, properties, and applications in environmental catalysis. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127427. [PMID: 34678562 DOI: 10.1016/j.jhazmat.2021.127427] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/19/2021] [Accepted: 10/01/2021] [Indexed: 05/14/2023]
Abstract
Heterogeneous catalysts have made outstanding advancements in pollutants elimination as well as energy and materials production over the past decades. Single-atom alloys (SAAs) are novel environmental catalysts prepared by dispersing single metal atoms on other metals. Integrating the advantages of single atom and alloys, SAAs can maximize atom utilization, reduce the use of noble metals and enhance catalytic performances. The synergistic, electronic and geometric effects of SAAs are effective to modulate the activation energy and adsorption strength, consequently breaking linear scaling relationship as well as offering an excellent catalytic activity and selectivity. Moreover, SAAs possess clear atomic structure, active sites and reaction mechanisms, providing an opportunity to tailor catalytic properties and develop effective environmental catalysts. In this review, we provide the recent progress on synthetic strategies, catalytic properties and catalyst design of SAAs. Furthermore, the applications of SAAs in environmental catalysis are introduced towards catalytic conversion and elimination of different air pollutants in many important reactions including (electrochemical) oxidation of volatile organic compounds (VOCs), dehydrogenation of VOCs, CO2 conversion, NOx reduction, CO oxidation, SO3 decomposition, etc. Finally, challenges and opportunities of SAAs in a broad environmental field are proposed.
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Affiliation(s)
- Zhiling Xu
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; SINOPEC Maoming Petrochemical Company, Maoming 525011, China
| | - Zhimin Ao
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Mei Yang
- SINOPEC Maoming Petrochemical Company, Maoming 525011, China
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide, SA 5005, Australia
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6
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Osada W, Tanaka S, Mukai K, Kawamura M, Choi Y, Ozaki F, Ozaki T, Yoshinobu J. Elucidation of the atomic-scale processes of dissociative adsorption and spillover of hydrogen on the single atom alloy catalyst Pd/Cu(111). Phys Chem Chem Phys 2022; 24:21705-21713. [DOI: 10.1039/d2cp01652d] [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
Hydrogen spillover is a crucial process in the selective hydrogenation reactions on Pd/Cu single atom alloy catalysts. In this study, we report the atomic-scale perspective of these processes on the...
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7
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Elucidating the Influence of the d-Band Center on the Synthesis of Isobutanol. Catalysts 2021. [DOI: 10.3390/catal11030406] [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
As the search for carbon-efficient synthesis pathways for green alternatives to fossil fuels continues, an expanding class of catalysts have been developed for the upgrading of lower alcohols. Understanding of the acid base functionalities has greatly influenced the search for new materials, but the influence of the metal used in catalysts cannot be explained in a broader sense. We address this herein and correlate our findings with the most fundamental understanding of chemistry to date by applying it to d-band theory as part of an experimental investigation. The commercial catalysts of Pt, Rh, Ru, Cu, Pd, and Ir on carbon as a support have been characterized by means of SEM, EDX-mapping, STEM, XRD, N2-physisorption, and H2-chemisorption. Their catalytic activity has been established by means of c-methylation of ethanol with methanol. For all catalysts, the TOF with respect to i-butanol was examined. The Pt/C reached the highest TOF with a selectivity towards i-butanol of 89%. The trend for the TOFs could be well correlated with the d-band centers of the metal, which formed a volcano curve. Therefore, this study is another step towards the rationalization of catalyst design for the upgrading of alcohols into carbon-neutral fuels or chemical feedstock.
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8
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Bai JQ, Tamura M, Nakayama A, Nakagawa Y, Tomishige K. Comprehensive Study on Ni- or Ir-Based Alloy Catalysts in the Hydrogenation of Olefins and Mechanistic Insight. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04615] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jia-qi Bai
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Masazumi Tamura
- Research Center for Artificial Photosynthesis, Advanced Research Institute for Natural Science and Technology, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Akira Nakayama
- Department of Chemical System Engineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Yoshinao Nakagawa
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Keiichi Tomishige
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
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9
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Zeng S, Shan S, Lu A, Wang S, Caracciolo DT, Robinson RJ, Shang G, Xue L, Zhao Y, Zhang A, Liu Y, Liu S, Liu Z, Bai F, Wu J, Wang H, Zhong CJ. Copper-alloy catalysts: structural characterization and catalytic synergies. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00179e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Recent progress in the development of copper-alloy catalysts is highlighted, focusing on the structural and mechanistic characterizations of the catalysts in different catalytic reactions, and challenges and opportunities in future research.
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Affiliation(s)
- Shanghong Zeng
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Shiyao Shan
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Aolin Lu
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Shan Wang
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Dominic T. Caracciolo
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Richard J. Robinson
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Guojun Shang
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Lei Xue
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Yuansong Zhao
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Aiai Zhang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Yang Liu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Shangpeng Liu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Ze Liu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Fenghua Bai
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Jinfang Wu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P.R. China
| | - Hong Wang
- School of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia, 010051, P.R. China
| | - Chuan-Jian Zhong
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
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10
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Lang R, Du X, Huang Y, Jiang X, Zhang Q, Guo Y, Liu K, Qiao B, Wang A, Zhang T. Single-Atom Catalysts Based on the Metal–Oxide Interaction. Chem Rev 2020; 120:11986-12043. [DOI: 10.1021/acs.chemrev.0c00797] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Rui Lang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xiaorui Du
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yike Huang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xunzhu Jiang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yalin Guo
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaipeng Liu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Aiqin Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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11
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Trimpalis A, Giannakakis G, Cao S, Flytzani-Stephanopoulos M. NiAu single atom alloys for the selective oxidation of methacrolein with methanol to methyl methacrylate. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.04.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Collinge G, Yuk SF, Nguyen MT, Lee MS, Glezakou VA, Rousseau R. Effect of Collective Dynamics and Anharmonicity on Entropy in Heterogenous Catalysis: Building the Case for Advanced Molecular Simulations. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01501] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Greg Collinge
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Simuck F. Yuk
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Manh-Thuong Nguyen
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Mal-Soon Lee
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Vassiliki-Alexandra Glezakou
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Roger Rousseau
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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13
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Hannagan RT, Giannakakis G, Flytzani-Stephanopoulos M, Sykes ECH. Single-Atom Alloy Catalysis. Chem Rev 2020; 120:12044-12088. [DOI: 10.1021/acs.chemrev.0c00078] [Citation(s) in RCA: 286] [Impact Index Per Article: 71.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Guan Y, Ma H, Chen W, Li M, Qian G, Chen D, Zhou X, Duan X. Methyl Methacrylate Synthesis: Thermodynamic Analysis for Oxidative Esterification of Methacrolein and Aldol Condensation of Methyl Acetate. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanan Guan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hongqin Ma
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wenyao Chen
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Maoshuai Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, China
| | - Gang Qian
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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15
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Patel DA, Kress PL, Cramer LA, Larson AM, Sykes ECH. Elucidating the composition of PtAg surface alloys with atomic-scale imaging and spectroscopy. J Chem Phys 2019; 151:164705. [DOI: 10.1063/1.5124687] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Dipna A. Patel
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
| | - Paul L. Kress
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
| | - Laura A. Cramer
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
| | - Amanda M. Larson
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
| | - E. Charles H. Sykes
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
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16
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17
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Han J, Lu J, Wang M, Wang Y, Wang F. Single Atom Alloy Preparation and Applications in Heterogeneous Catalysis. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900185] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianyu Han
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jianmin Lu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Min Wang
- Zhang Dayu School of ChemistryDalian University of Technology Dalian Liaoning 116024 China
| | - Yehong Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Feng Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean EnergyDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
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18
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Bodenschatz CJ, Xie T, Zhang X, Getman RB. Insights into how the aqueous environment influences the kinetics and mechanisms of heterogeneously-catalyzed COH* and CH 3OH* dehydrogenation reactions on Pt(111). Phys Chem Chem Phys 2019; 21:9895-9904. [PMID: 31038522 DOI: 10.1039/c9cp00824a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Water influences catalytic reactions in multiple ways, including energetic and mechanistic effects. While simulations have provided significant insight into the roles that H2O molecules play in aqueous-phase heterogeneous catalysis, questions still remain as to the extent to which H2O structures influence catalytic mechanisms. Specifically, influences of the configurational variability in the water structures at the catalyst interface are yet to be understood. Configurational variability is challenging to capture, as it requires multiscale approaches. Herein, we apply a multiscale sampling approach to calculate reaction thermodynamics and kinetics for COH* dehydrogenation to CO* and CH3OH* dehydrogenation to CH2OH* on Pt(111) catalysts under liquid H2O. We explore various pathways for these dehydrogenation reactions that could influence the overall mechanism of methanol decomposition by including participation of H2O structures both energetically and mechanistically. We find that the liquid H2O environment significantly influences the mechanism of COH* dehydrogenation to CO* but leaves the mechanism of CH3OH* dehydrogenation to CH2OH* largely unaltered.
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Affiliation(s)
- Cameron J Bodenschatz
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, USA.
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19
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20
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Hanukovich S, Dang A, Christopher P. Influence of Metal Oxide Support Acid Sites on Cu-Catalyzed Nonoxidative Dehydrogenation of Ethanol to Acetaldehyde. ACS Catal 2019. [DOI: 10.1021/acscatal.8b05075] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sergei Hanukovich
- Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, Riverside, California 92521, United States
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93117, United States
| | - Alan Dang
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93117, United States
| | - Phillip Christopher
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93117, United States
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21
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Giannakakis G, Flytzani-Stephanopoulos M, Sykes ECH. Single-Atom Alloys as a Reductionist Approach to the Rational Design of Heterogeneous Catalysts. Acc Chem Res 2019; 52:237-247. [PMID: 30540456 DOI: 10.1021/acs.accounts.8b00490] [Citation(s) in RCA: 178] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Heterogeneous catalysts are workhorses in the industrial production of most commodity and specialty chemicals, and have widespread energy and environmental applications, with the annual market value of the catalysts themselves reaching almost $20 billion in 2018. These catalysts are complex, comprising multicomponent materials and multiple structures, making their rational design challenging, if not impossible. Furthermore, typical active metals like Pt, Pd, and Rh are expensive and can be susceptible to poisoning by CO, coking, and they are not always 100% selective. Efforts to use these elements sparingly and improve their selectivity has led to recent identification of single-atom heterogeneous catalysts in which individual transition metal atoms anchored on oxide or carbon-based supports are excellent catalysts for reactions like the CO oxidation, water-gas shift, alcohol dehydrogenation, and steam reforming. In this Account, we describe a new class of single-atom heterogeneous catalysts, namely, Single-Atom Alloys (SAAs) that comprise catalytically active elements like Pt, Pd, and Ni alloyed in more inert host metals at the single-atom limit. These materials evolved by complementary surface science and scanning probe studies using single crystals, and catalytic evaluation of the corresponding alloy nanoparticles with compositions informed by the surface science findings. The well-defined nature of the active sites in SAAs makes accurate modeling with theory relatively easy, enabling the rational design of SAA catalysts via a complementary three-prong approach, encompassing surface science model catalysts, theory, and real catalyst synthesis and testing under industrially relevant conditions. SAAs constitute one of just a few examples of when heterogeneous catalyst design has been guided by an understanding of fundamental surface processes. The Account starts by describing scanning tunneling microscopy studies of highly dilute alloys formed by doping small amounts of a catalytically active element into a more inert host metal. We first discuss hydrogenation reactions in which dissociation of H2 is often rate limiting. Results indicate how the SAA geometry allows the transition state and the binding site of the reaction intermediates to be decoupled, which enables both facile dissociation of reactants and weak binding of intermediates, two key factors for efficient and selective catalysis. These results were exploited to design the first PtCu SAA hydrogenation catalysts which showed high selectivity, stability and resistance to poisoning in industrially relevant hydrogenation reactions, such as the selective conversion of butadiene to butenes. Model studies also revealed spillover of hydrogen atoms from the Pt site where dissociation of H2 occurs to Cu sites where selective hydrogenation is facilitated in a bifunctional manner. We then discuss selective dehydrogenations on SAAs demonstrating that they enable efficient C-H activation, while being resistant to coking that plagues typical Pt catalysts. SAA PtCu nanoparticle catalysts showed excellent stability in butane dehydrogenation for days-on-stream at 400 °C. Another advantage of SAA catalysts is that on many alloy combinations CO, a common catalyst poison, binds more weakly to the alloy than the pure metal. We conclude by discussing recent theory results that predict the energetics of many key reaction steps on a wide range of SAAs and the exciting possibilities this reductionist approach to heterogeneous catalysis offers for the rational design of new catalysts.
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Affiliation(s)
- Georgios Giannakakis
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155 United States
| | - Maria Flytzani-Stephanopoulos
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155 United States
| | - E. Charles H. Sykes
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155 United States
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22
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Yang CP, Fang SU, Yang KH, Chen HC, Tsai HY, Mai FD, Liu YC. Surface-Enhanced Raman Scattering-Active Substrate Prepared with New Plasmon-Activated Water. ACS OMEGA 2018; 3:4743-4751. [PMID: 31458693 PMCID: PMC6641932 DOI: 10.1021/acsomega.8b00494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 04/23/2018] [Indexed: 06/10/2023]
Abstract
Conventionally, reactions in aqueous solutions are prepared using deionized (DI) water, the properties of which are related to inert "bulk water" comprising a tetrahedral hydrogen-bonded network. In this work, we demonstrate the distinguished benefits of using in situ plasmon-activated water (PAW) with reduced hydrogen bonds instead of DI water in electrochemical reactions, which generally are governed by diffusion and kinetic controls. Compared with DI water-based systems, the diffusion coefficient and the electron-transfer rate constant of K3Fe(CN)6 in PAW in situ can be increased by ca. 35 and 15%, respectively. These advantages are responsible for the improved performance of surface-enhanced Raman scattering (SERS). On the basis of PAW in situ, the SERS enhancement of twofold higher intensity of rhodamine 6G and the corresponding low relative standard deviation of 5%, which is comparable to and even better than those based on complicated processes shown in the literature, are encouraging.
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Affiliation(s)
- Chih-Ping Yang
- Department
of Biochemistry and Molecular Cell Biology, and Department of
Internal Medicine, School of Medicine, College
of Medicine, Taipei Medical University, No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Sheng-Uei Fang
- Department
of Biochemistry and Molecular Cell Biology, and Department of
Internal Medicine, School of Medicine, College
of Medicine, Taipei Medical University, No. 250, Wuxing Street, Taipei 11031, Taiwan
- Division
of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, No. 252, Wuxing Street, Taipei 11031, Taiwan
| | - Kuang-Hsuan Yang
- Department
of Materials Science and Engineering, Vanung
University, 1 Van-Nung
Road, Taoyuan 32061, Taiwan
| | - Hsiao-Chien Chen
- Department
of Biochemistry and Molecular Cell Biology, and Department of
Internal Medicine, School of Medicine, College
of Medicine, Taipei Medical University, No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Hui-Yen Tsai
- Department
of Biochemistry and Molecular Cell Biology, and Department of
Internal Medicine, School of Medicine, College
of Medicine, Taipei Medical University, No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Fu-Der Mai
- Department
of Biochemistry and Molecular Cell Biology, and Department of
Internal Medicine, School of Medicine, College
of Medicine, Taipei Medical University, No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Yu-Chuan Liu
- Department
of Biochemistry and Molecular Cell Biology, and Department of
Internal Medicine, School of Medicine, College
of Medicine, Taipei Medical University, No. 250, Wuxing Street, Taipei 11031, Taiwan
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23
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Yang CP, Liu YC. Therapeutics for Inflammatory-Related Diseases Based on Plasmon-Activated Water: A Review. Int J Mol Sci 2018; 19:E1589. [PMID: 29843406 PMCID: PMC6032129 DOI: 10.3390/ijms19061589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/22/2018] [Accepted: 05/22/2018] [Indexed: 12/18/2022] Open
Abstract
It is recognized that the properties of liquid water can be markedly different from those of bulk one when it is in contact with hydrophobic surfaces or is confined in nano-environments. Because our knowledge regarding water structure on the molecular level of dynamic equilibrium within a picosecond time scale is far from completeness all of water's conventionally known properties are based on inert "bulk liquid water" with a tetrahedral hydrogen-bonded structure. Actually, the strength of water's hydrogen bonds (HBs) decides its properties and activities. In this review, an innovative idea on preparation of metastable plasmon-activated water (PAW) with intrinsically reduced HBs, by letting deionized (DI) water flow through gold-supported nanoparticles (AuNPs) under resonant illumination at room temperature, is reported. Compared to DI water, the created stable PAW can scavenge free hydroxyl and 2,2-diphenyl-1-picrylhydrazyl radicals and effectively reduce NO release from lipopolysaccharide-induced inflammatory cells. Moreover, PAW can dramatically induce a major antioxidative Nrf2 gene in human gingival fibroblasts. This further confirms its cellular antioxidative and anti-inflammatory properties. In addition, innovatively therapeutic strategy of daily drinking PAW on inflammatory-related diseases based on animal disease models is demonstrated, examples being chronic kidney disease (CKD), chronic sleep deprivation (CSD), and lung cancer.
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Affiliation(s)
- Chih-Ping Yang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wuxing St., Taipei 11031, Taiwan.
| | - Yu-Chuan Liu
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wuxing St., Taipei 11031, Taiwan.
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24
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NiAu Single Atom Alloys for the Non-oxidative Dehydrogenation of Ethanol to Acetaldehyde and Hydrogen. Top Catal 2018. [DOI: 10.1007/s11244-017-0883-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Highly selective conversion of CO2 into ethanol on Cu/ZnO/Al2O3 catalyst with the assistance of plasma. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2017.10.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Yan M, Huang ZQ, Zhang Y, Chang CR. Trends in water-promoted oxygen dissociation on the transition metal surfaces from first principles. Phys Chem Chem Phys 2018; 19:2364-2371. [PMID: 28054681 DOI: 10.1039/c6cp06974f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dissociation of O2 into atomic oxygen is a significant route for O2 activation in metal-catalyzed oxidation reactions. In this study, we systematically investigated the mechanisms of O2 dissociation and the promoting role of water on nine transition metal (Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, and Au) surfaces. It was found that on clean metal surfaces, the dissociation of O2 was most favorable on Co(0001) and most difficult on Au(111), according to the free energy barriers of Co (0.03 eV) < Rh (0.20 eV) < Ni (0.26 eV) < Cu (0.45 eV) < Ir (0.62 eV) < Pd (0.65 eV) < Pt (0.92 eV) < Ag (1.07 eV) < Au (2.50 eV). With the involvement of water, O2 and H2O formed an O2H2O complex via hydrogen bonding interactions, being accompanied by an increased co-adsorption free energy of 0.17-0.52 eV and a more activated O-O bond. More importantly, the introduction of water reduced the barriers of O2 dissociation on all the nine metal surfaces, with the reduction of the free energy barrier ranging from 0.03 eV on Co(0001) to 1.05 eV on Au(111). The intrinsic reasons for the promotional role of water are attributed to the hydrogen bonding effect between O2 and H2O and the electronic modification effect induced by the water-surface interaction. These results provide a fundamental understanding of the catalytic role of water in O2 dissociation on the transition metal surfaces and may be helpful in the rational design of new efficient catalysts for the oxidation reactions using molecular oxygen or air.
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Affiliation(s)
- Ming Yan
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Zheng-Qing Huang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Yu Zhang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Chun-Ran Chang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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27
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Abstract
Platinum group metals (PGMs) serve as highly active catalysts in a variety of heterogeneous chemical processes. Unfortunately, their high activity is accompanied by a high affinity for CO and thus, PGMs are susceptible to poisoning. Alloying PGMs with metals exhibiting lower affinity to CO could be an effective strategy toward preventing such poisoning. In this work, we use density functional theory to demonstrate this strategy, focusing on highly dilute alloys of PGMs (Pd, Pt, Rh, Ir and Ni) with poison resistant coinage metal hosts (Cu, Ag, Au), such that individual PGM atoms are dispersed at the atomic limit forming single atom alloys (SAAs). We show that compared to the pure metals, CO exhibits lower binding strength on the majority of SAAs studied, and we use kinetic Monte Carlo simulation to obtain relevant temperature programed desorption spectra, which are found to be in good agreement with experiments. Additionally, we consider the effects of CO adsorption on the structure of SAAs. We calculate segregation energies which are indicative of the stability of dopant atoms in the bulk compared to the surface layer, as well as aggregation energies to determine the stability of isolated surface dopant atoms compared to dimer and trimer configurations. Our calculations reveal that CO adsorption induces dopant atom segregation into the surface layer for all SAAs considered here, whereas aggregation and island formation may be promoted or inhibited depending on alloy constitution and CO coverage. This observation suggests the possibility of controlling ensemble effects in novel catalyst architectures through CO-induced aggregation and kinetic trapping.
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28
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29
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Eren B, Kersell H, Weatherup RS, Heine C, Crumlin EJ, Friend CM, Salmeron MB. Structure of the Clean and Oxygen-Covered Cu(100) Surface at Room Temperature in the Presence of Methanol Vapor in the 10–200 mTorr Pressure Range. J Phys Chem B 2017; 122:548-554. [PMID: 28749680 DOI: 10.1021/acs.jpcb.7b04681] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | - Cynthia M. Friend
- Paulson
School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Miquel B. Salmeron
- Department
of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
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30
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Affiliation(s)
- F. McBride
- Department of Chemistry, Surface Science Research Centre, University of Liverpool, Liverpool L69 3BX, UK
| | - A. Hodgson
- Department of Chemistry, Surface Science Research Centre, University of Liverpool, Liverpool L69 3BX, UK
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31
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Chang CR, Huang ZQ, Li J. The promotional role of water in heterogeneous catalysis: mechanism insights from computational modeling. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1272] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Chun-Ran Chang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology; Xi'an Jiaotong University; Xi'an China
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education; Tsinghua University; Beijing China
| | - Zheng-Qing Huang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology; Xi'an Jiaotong University; Xi'an China
| | - Jun Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education; Tsinghua University; Beijing China
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32
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Liu J, Lucci FR, Yang M, Lee S, Marcinkowski MD, Therrien AJ, Williams CT, Sykes ECH, Flytzani-Stephanopoulos M. Tackling CO Poisoning with Single-Atom Alloy Catalysts. J Am Chem Soc 2016; 138:6396-9. [DOI: 10.1021/jacs.6b03339] [Citation(s) in RCA: 296] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jilei Liu
- Department
of Chemical and Biological Engineering, Tufts University, 4
Colby Street, Medford, Massachusetts 02155, United States
| | - Felicia R. Lucci
- Department
of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Ming Yang
- Department
of Chemical and Biological Engineering, Tufts University, 4
Colby Street, Medford, Massachusetts 02155, United States
| | - Sungsik Lee
- X-ray
Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Matthew D. Marcinkowski
- Department
of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Andrew J. Therrien
- Department
of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Christopher T. Williams
- Department
of Chemical Engineering, University of South Carolina, 301 Main Street, Columbia, South Carolina 29208, United States
| | - E. Charles H. Sykes
- Department
of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Maria Flytzani-Stephanopoulos
- Department
of Chemical and Biological Engineering, Tufts University, 4
Colby Street, Medford, Massachusetts 02155, United States
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33
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Wang C, Garbarino G, Allard LF, Wilson F, Busca G, Flytzani-Stephanopoulos M. Low-Temperature Dehydrogenation of Ethanol on Atomically Dispersed Gold Supported on ZnZrOx. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01593] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chongyang Wang
- Tufts University, Department of Chemical and Biological
Engineering, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Gabriella Garbarino
- Tufts University, Department of Chemical and Biological
Engineering, 4 Colby Street, Medford, Massachusetts 02155, United States
- University of Genoa, Department of Civil, Chemical
and Environmental Engineering (DICCA), Piazzale Kennedy 1, I-16129 Genoa, Italy
| | - Lawrence F. Allard
- Oak Ridge National Laboratory, Materials Science
and Technology Division, Oak Ridge, Tennessee 37831, United States
| | - Faith Wilson
- Tufts University, Department of Chemical and Biological
Engineering, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Guido Busca
- University of Genoa, Department of Civil, Chemical
and Environmental Engineering (DICCA), Piazzale Kennedy 1, I-16129 Genoa, Italy
| | - Maria Flytzani-Stephanopoulos
- Tufts University, Department of Chemical and Biological
Engineering, 4 Colby Street, Medford, Massachusetts 02155, United States
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34
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He Z, Qian Q, Ma J, Meng Q, Zhou H, Song J, Liu Z, Han B. Water-Enhanced Synthesis of Higher Alcohols from CO2Hydrogenation over a Pt/Co3O4Catalyst under Milder Conditions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507585] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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He Z, Qian Q, Ma J, Meng Q, Zhou H, Song J, Liu Z, Han B. Water-Enhanced Synthesis of Higher Alcohols from CO2Hydrogenation over a Pt/Co3O4Catalyst under Milder Conditions. Angew Chem Int Ed Engl 2015; 55:737-41. [DOI: 10.1002/anie.201507585] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 10/05/2015] [Indexed: 01/08/2023]
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36
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Wong GKS, Lim LZ, Lim MJW, Ong LL, Khezri B, Pumera M, Webster RD. Evaluation of the Sorbent Properties of Single- and Multiwalled Carbon Nanotubes for Volatile Organic Compounds through Thermal Desorption-Gas Chromatography/Mass Spectrometry. Chempluschem 2015; 80:1279-1287. [DOI: 10.1002/cplu.201500070] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Indexed: 11/09/2022]
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37
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Klimkiewicz R. Upgrading oxygenated Fischer-Tropsch derivatives and one-step direct synthesis of ethyl acetate from ethanol - examples of the desirability of research on simple chemical compounds transformations. Chem Cent J 2015; 8:77. [PMID: 25648719 PMCID: PMC4303706 DOI: 10.1186/s13065-014-0077-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 12/11/2014] [Indexed: 11/10/2022] Open
Abstract
Oxygenates formed as by-products of Fischer-Tropsch syntheses can be transformed into other Fischer-Tropsch derived oxygenates instead of treating them as unwanted chemicals. One-step direct synthesis of ethyl acetate from ethanol is feasible with the use of some heterogeneous catalysts. Despite their apparent simplicity, both transformations are discussed as targeted fields of research. Furthermore, the two concepts are justified due to the environmental protection. Arguments regarding the Fischer-Tropsch process are focused on the opportunities of the utilization of undesirable by-products. The effective striving for their utilization can make the oxygenates the targeted products of this process. Arguments regarding the one-step direct synthesis of ethyl acetate underline the environmental protection and sustainability as a less waste-generating method but, above all, highlight the possibility of reducing the glycerol overproduction problem. The production of ethyl acetate from bioethanol and then transesterification of fats and oils with the use of ethyl acetate allows managing all the renewable raw materials. Thus, the process enables the biosynthesis of biodiesel without glycerine by-product and potentially would result in the increase in the demand for ethyl acetate. Graphical Abstract.
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Affiliation(s)
- Roman Klimkiewicz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland
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38
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Huang ZQ, Long B, Chang CR. A theoretical study on the catalytic role of water in methanol steam reforming on PdZn(111). Catal Sci Technol 2015. [DOI: 10.1039/c5cy00016e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The catalytic role of water in the methanol steam reforming process on the PdZn(111) surface is explored theoretically.
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Affiliation(s)
- Zheng-Qing Huang
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Bo Long
- College of Information Engineering
- Guizhou Minzu University
- Guiyang 550025
- China
| | - Chun-Ran Chang
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an 710049
- China
| |
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