51
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Liu L, Corma A. Isolated metal atoms and clusters for alkane activation: Translating knowledge from enzymatic and homogeneous to heterogeneous systems. Chem 2021. [DOI: 10.1016/j.chempr.2021.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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52
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Qian K. A New Strategy to Regulate the Selectivity of Photo-Mediated Catalytic Reaction. Front Chem 2021; 9:673857. [PMID: 34434916 PMCID: PMC8380827 DOI: 10.3389/fchem.2021.673857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 06/18/2021] [Indexed: 11/13/2022] Open
Abstract
Here we developed a new method for regulating the selectivity of photo-mediated catalytic reaction by manipulating the surface charge of Au/TiO2 (gold/titanium dioxide) catalysts within chemical reaction timescales. Two kinds of photocatalytic reactions, hydrogenation of acetophenone and benzyl alcohol oxidation, have been applied to investigate the photocatalytic performance over Au/TiO2 catalysts with tunable surface charges. We found that a suitable timescale of switching surface charge on Au would benefit for the enhanced quantum efficiency and play different roles in the selectivity of desired products in hydrogenation and oxidation reactions. Au/TiO2 catalyst under 5 μs flashing light irradiation exhibits much higher selectivity of 1-phenylethanol in the hydrogenation of acetophenone than that under continuous light and 5 s flashing light irradiation; by contrast, Au/TiO2 catalysts under both flashing light and continuous light irradiation exhibit a similar selectivity of benzaldehyde in benzyl alcohol oxidation. Our findings will benefit for a better understanding of electronic structure-mediated reaction mechanism and be helpful for achieving highly efficient photocatalytic systems.
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Affiliation(s)
- Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, China
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53
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Yuan N, Bai H, An M, Zhang J, Hu X, Guo Q. Modulation of Fe-based oxygen carriers by low concentration doping of Cu in chemical looping process: Reactivity and mechanism based on experiments combined with DFT calculations. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.04.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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54
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Huang X, Jones T, Fedorov A, Farra R, Copéret C, Schlögl R, Willinger MG. Phase Coexistence and Structural Dynamics of Redox Metal Catalysts Revealed by Operando TEM. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101772. [PMID: 34117665 DOI: 10.1002/adma.202101772] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/10/2021] [Indexed: 05/12/2023]
Abstract
Metal catalysts play an important role in industrial redox reactions. Although extensively studied, the state of these catalysts under operating conditions is largely unknown, and assignments of active sites remain speculative. Herein, an operando transmission electron microscopy study is presented, which interrelates the structural dynamics of redox metal catalysts to their activity. Using hydrogen oxidation on copper as an elementary redox reaction, it is revealed how the interaction between metal and the surrounding gas phase induces complex structural transformations and drives the system from a thermodynamic equilibrium toward a state controlled by the chemical dynamics. Direct imaging combined with the simultaneous detection of catalytic activity provides unparalleled structure-activity insights that identify distinct mechanisms for water formation and reveal the means by which the system self-adjusts to changes of the gas-phase chemical potential. Density functional theory calculations show that surface phase transitions are driven by chemical dynamics even when the system is far from a thermodynamic phase boundary. In a bottom-up approach, the dynamic behavior observed here for an elementary reaction is finally extended to more relevant redox reactions and other metal catalysts, which underlines the importance of chemical dynamics for the formation and constant re-generation of transient active sites during catalysis.
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Affiliation(s)
- Xing Huang
- Scientific Center for Optical and Electron Microscopy, ETH Zurich, Otto-Stern-Weg 3, Zurich, 8093, Switzerland
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Travis Jones
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Alexey Fedorov
- Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland
| | - Ramzi Farra
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Robert Schlögl
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
- Department Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
| | - Marc-Georg Willinger
- Scientific Center for Optical and Electron Microscopy, ETH Zurich, Otto-Stern-Weg 3, Zurich, 8093, Switzerland
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
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55
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Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology. Catalysts 2021. [DOI: 10.3390/catal11070833] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dehydrogenation processes play an important role in the petrochemical industry. High selectivity towards olefins is usually hindered by numerous side reactions in a conventional cracking/pyrolysis technology. Herein, we show recent studies devoted to selective ethylene production via oxidative and non-oxidative reactions. This review summarizes the progress that has been achieved with ethane conversion in terms of the process effectivity. Briefly, steam cracking, catalytic dehydrogenation, oxidative dehydrogenation (with CO2/O2), membrane technology, and chemical looping are reviewed.
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56
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Li X, Pei C, Gong J. Shale gas revolution: Catalytic conversion of C1–C3 light alkanes to value-added chemicals. Chem 2021. [DOI: 10.1016/j.chempr.2021.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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57
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Solid-State Redox Kinetics of CeO2 in Two-Step Solar CH4 Partial Oxidation and Thermochemical CO2 Conversion. Catalysts 2021. [DOI: 10.3390/catal11060723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The CeO2/CeO2−δ redox system occupies a unique position as an oxygen carrier in chemical looping processes for producing solar fuels, using concentrated solar energy. The two-step thermochemical ceria-based cycle for the production of synthesis gas from methane and solar energy, followed by CO2 splitting, was considered in this work. This topic concerns one of the emerging and most promising processes for the recycling and valorization of anthropogenic greenhouse gas emissions. The development of redox-active catalysts with enhanced efficiency for solar thermochemical fuel production and CO2 conversion is a highly demanding and challenging topic. The determination of redox reaction kinetics is crucial for process design and optimization. In this study, the solid-state redox kinetics of CeO2 in the two-step process with CH4 as the reducing agent and CO2 as the oxidizing agent was investigated in an original prototype solar thermogravimetric reactor equipped with a parabolic dish solar concentrator. In particular, the ceria reduction and re-oxidation reactions were carried out under isothermal conditions. Several solid-state kinetic models based on reaction order, nucleation, shrinking core, and diffusion were utilized for deducing the reaction mechanisms. It was observed that both ceria reduction with CH4 and re-oxidation with CO2 were best represented by a 2D nucleation and nuclei growth model under the applied conditions. The kinetic models exhibiting the best agreement with the experimental reaction data were used to estimate the kinetic parameters. The values of apparent activation energies (~80 kJ·mol−1 for reduction and ~10 kJ·mol−1 for re-oxidation) and pre-exponential factors (~2–9 s−1 for reduction and ~123–253 s−1 for re-oxidation) were obtained from the Arrhenius plots.
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58
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Zhou H, Yi X, Hui Y, Wang L, Chen W, Qin Y, Wang M, Ma J, Chu X, Wang Y, Hong X, Chen Z, Meng X, Wang H, Zhu Q, Song L, Zheng A, Xiao FS. Isolated boron in zeolite for oxidative dehydrogenation of propane. Science 2021; 372:76-80. [PMID: 33795454 DOI: 10.1126/science.abe7935] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 02/09/2021] [Indexed: 11/02/2022]
Abstract
Oxidative dehydrogenation of propane (ODHP) is a key technology for producing propene from shale gas, but conventional metal oxide catalysts are prone to overoxidation to form valueless CO x Boron-based catalysts were recently found to be selective for this reaction, and B-O-B oligomers are generally regarded as active centers. We show here that the isolated boron in a zeolite framework without such oligomers exhibits high activity and selectivity for ODHP, which also hinders full hydrolysis for boron leaching in a humid atmosphere because of the B-O-SiO x linkage, achieving superior durability in a long-period test. Furthermore, we demonstrate an isolated boron with a -B[OH…O(H)-Si]2 structure in borosilicate zeolite as the active center, which enables the activation of oxygen and a carbon-hydrogen bond to catalyze the ODHP.
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Affiliation(s)
- Hang Zhou
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.,These authors contributed equally to this work
| | - Xianfeng Yi
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.,These authors contributed equally to this work
| | - Yu Hui
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Fushun 113001, China.,These authors contributed equally to this work
| | - Liang Wang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Ningbo Research Institute, Zhejiang University, Ningbo 315100, China
| | - Wei Chen
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Yucai Qin
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Fushun 113001, China
| | - Ming Wang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jiabi Ma
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xuefeng Chu
- Key Laboratory of Architectural Cold Climate Energy Management, Jilin Jianzhu University, Changchun 130118, China
| | - Yeqing Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Zifeng Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Xiangju Meng
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China.
| | - Hai Wang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiuyan Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Lijuan Song
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Fushun 113001, China
| | - Anmin Zheng
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.
| | - Feng-Shou Xiao
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. .,Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.,Department of Chemistry, Zhejiang University, Hangzhou 310028, China
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59
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Ugwu A, Zaabout A, Donat F, van Diest G, Albertsen K, Müller C, Amini S. Combined Syngas and Hydrogen Production using Gas Switching Technology. Ind Eng Chem Res 2021; 60:3516-3531. [PMID: 33840889 PMCID: PMC8033639 DOI: 10.1021/acs.iecr.0c04335] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 02/18/2021] [Accepted: 02/18/2021] [Indexed: 11/30/2022]
Abstract
![]()
This paper focuses
on the experimental demonstration of a three-stage
GST (gas switching technology) process (fuel, steam/CO2, and air stages) for syngas production from methane in the fuel
stage and H2/CO production in the steam/CO2 stage
using a lanthanum-based oxygen carrier (La0.85Sr0.15Fe0.95Al0.05O3). Experiments were
performed at temperatures between 750–950 °C and pressures
up to 5 bar. The results show that the oxygen carrier exhibits high
selectivity to oxidizing methane to syngas at the fuel stage with
improved process performance with increasing temperature although
carbon deposition could not be avoided. Co-feeding CO2 with
CH4 at the fuel stage reduced carbon deposition significantly,
thus reducing the syngas H2/CO molar ratio from 3.75 to
1 (at CO2/CH4 ratio of 1 at 950 °C and
1 bar). The reduced carbon deposition has maximized the purity of
the H2 produced in the consecutive steam stage thus increasing
the process attractiveness for the combined production of syngas and
pure hydrogen. Interestingly, the cofeeding of CO2 with
CH4 at the fuel stage showed a stable syngas production
over 12 hours continuously and maintained the H2/CO ratio
at almost unity, suggesting that the oxygen carrier was exposed to
simultaneous partial oxidation of CH4 with the lattice
oxygen which was restored instantly by the incoming CO2. Furthermore, the addition of steam to the fuel stage could tune
up the H2/CO ratio beyond 3 without carbon deposition at
H2O/CH4 ratio of 1 at 950 °C and 1 bar;
making the syngas from gas switching partial oxidation suitable for
different downstream processes, for example, gas-to-liquid processes.
The process was also demonstrated at higher pressures with over 70%
fuel conversion achieved at 5 bar and 950 °C.
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Affiliation(s)
- Ambrose Ugwu
- Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | | | - Felix Donat
- Laboratory of Energy Science and Engineering, ETH Zürich, Zurich, 8092, Switzerland
| | - Geert van Diest
- Euro Support Advanced Materials B.V, Uden, 5405, The Netherlands
| | - Knuth Albertsen
- Euro Support Advanced Materials B.V, Uden, 5405, The Netherlands
| | - Christoph Müller
- Laboratory of Energy Science and Engineering, ETH Zürich, Zurich, 8092, Switzerland
| | - Shahriar Amini
- Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, 7491, Norway.,Process Technology Department, SINTEF Industry, Trondheim, 7465, Norway.,Department of Mechanical Engineering, University of Alabama, Tuscaloosa, 35487, United States
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60
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Zhu X, Gao Y, Wang X, Haribal V, Liu J, Neal LM, Bao Z, Wu Z, Wang H, Li F. A tailored multi-functional catalyst for ultra-efficient styrene production under a cyclic redox scheme. Nat Commun 2021; 12:1329. [PMID: 33637739 PMCID: PMC7910546 DOI: 10.1038/s41467-021-21374-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 01/25/2021] [Indexed: 01/31/2023] Open
Abstract
Styrene is an important commodity chemical that is highly energy and CO2 intensive to produce. We report a redox oxidative dehydrogenation (redox-ODH) strategy to efficiently produce styrene. Facilitated by a multifunctional (Ca/Mn)1-xO@KFeO2 core-shell redox catalyst which acts as (i) a heterogeneous catalyst, (ii) an oxygen separation agent, and (iii) a selective hydrogen combustion material, redox-ODH auto-thermally converts ethylbenzene to styrene with up to 97% single-pass conversion and >94% selectivity. This represents a 72% yield increase compared to commercial dehydrogenation on a relative basis, leading to 82% energy savings and 79% CO2 emission reduction. The redox catalyst is composed of a catalytically active KFeO2 shell and a (Ca/Mn)1-xO core for reversible lattice oxygen storage and donation. The lattice oxygen donation from (Ca/Mn)1-xO sacrificially stabilizes Fe3+ in the shell to maintain high catalytic activity and coke resistance. From a practical standpoint, the redox catalyst exhibits excellent long-term performance under industrially compatible conditions.
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Affiliation(s)
- Xing Zhu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China
| | - Yunfei Gao
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Xijun Wang
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Vasudev Haribal
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Junchen Liu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Luke M Neal
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Zhenghong Bao
- Oak Ridge National Laboratory, Chemical Science Division and Center for Nanophase Materials Sciences, Oak Ridge, TN, USA
| | - Zili Wu
- Oak Ridge National Laboratory, Chemical Science Division and Center for Nanophase Materials Sciences, Oak Ridge, TN, USA
| | - Hua Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China
| | - Fanxing Li
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA.
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61
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Abstract
Chemical looping can be considered a technology platform, which refers to one common basic concept that can be used for various applications. Compared with a traditional catalytic process, the chemical looping concept allows fuels’ conversion and products’ separation without extra processes. In addition, the chemical looping technology has another major advantage: combinability, which enables the integration of different reactions into one process, leading to intensification. This review collects various important state-of-the-art examples, such as integration of chemical looping and catalytic processes. Hereby, we demonstrate that chemical looping can in principle be implemented for any catalytic reaction or at least assist in existing processes, provided that the targeted functional group is transferrable by means of suitable carriers.
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62
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Tian M, Wang C, Han Y, Wang X. Recent Advances of Oxygen Carriers for Chemical Looping Reforming of Methane. ChemCatChem 2021. [DOI: 10.1002/cctc.202001481] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ming Tian
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Chaojie Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19(A) Yuquan Road Shijingshan District Beijing 100049 P. R. China
| | - Yujia Han
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19(A) Yuquan Road Shijingshan District Beijing 100049 P. R. China
| | - Xiaodong Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
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63
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Chen S, Chang X, Sun G, Zhang T, Xu Y, Wang Y, Pei C, Gong J. Propane dehydrogenation: catalyst development, new chemistry, and emerging technologies. Chem Soc Rev 2021; 50:3315-3354. [DOI: 10.1039/d0cs00814a] [Citation(s) in RCA: 132] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This review describes recent advances in the propane dehydrogenation process in terms of emerging technologies, catalyst development and new chemistry.
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Affiliation(s)
- Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xin Chang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Guodong Sun
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Tingting Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yiyi Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yang Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Chunlei Pei
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
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64
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Shah V, Cheng Z, Mohapatra P, Fan LS. Enhanced methane conversion using Ni-doped calcium ferrite oxygen carriers in chemical looping partial oxidation systems with CO 2 utilization. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00150g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enhanced methane and CO2 conversion by utilizing Ni-doped calcium ferrite oxygen carriers for the chemical looping partial oxidation technology.
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Affiliation(s)
- Vedant Shah
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Zhuo Cheng
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Pinak Mohapatra
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Liang-Shih Fan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
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65
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Chlorine-promoted perovskite nanocomposite as a high-performance oxygen transfer agent for chemical looping methane-assisted CO2 splitting. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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66
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Xie Z, Yu T, Song W, Li J, Zhao Z, Liu B, Gao Z, Li D. Highly Active Nanosized Anatase TiO2–x Oxide Catalysts In Situ Formed through Reduction and Ostwald Ripening Processes for Propane Dehydrogenation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02825] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Zean Xie
- Institute of Catalysis for Energy and Environment, Shenyang Normal University, Shenyang 110034, China
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Tingting Yu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Jianmei Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Zhen Zhao
- Institute of Catalysis for Energy and Environment, Shenyang Normal University, Shenyang 110034, China
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Baijun Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Zhenfei Gao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Dong Li
- Institute of Catalysis for Energy and Environment, Shenyang Normal University, Shenyang 110034, China
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67
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Qin L, Chen Y, Guo M, Liu Y, A. Fan J, Fan L. Driving Towards Highly Selective and Coking‐Resistant Natural Gas Reforming Through a Hybrid Oxygen Carrier Design. ChemCatChem 2020. [DOI: 10.1002/cctc.202001199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lang Qin
- William G. Lowrie Department of Chemical and Biomolecular Engineering The Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Yu‐Yen Chen
- William G. Lowrie Department of Chemical and Biomolecular Engineering The Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Mengqing Guo
- William G. Lowrie Department of Chemical and Biomolecular Engineering The Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Yan Liu
- William G. Lowrie Department of Chemical and Biomolecular Engineering The Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Jonathan A. Fan
- Department of Electrical Engineering Ginzton Laboratory Spilker Engineering and Applied Sciences Stanford University 348 Via Pueblo Mall Stanford CA 94305 USA
| | - Liang‐Shih Fan
- William G. Lowrie Department of Chemical and Biomolecular Engineering The Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
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68
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Insights into the intrinsic interaction between series of C1 molecules and surface of NiO oxygen carriers involved in chemical looping processes. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.07.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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69
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Nair MM, Yu N, Mahinpey N. Dopant-Induced Tailoring of Isothermal Redox Properties of CaMnO 3 Perovskites. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03449] [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)
- Mahesh M. Nair
- Schulich School of Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada T2N 1N4
| | - Ningyu Yu
- Schulich School of Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada T2N 1N4
| | - Nader Mahinpey
- Schulich School of Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada T2N 1N4
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70
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Chen S, Pei C, Chang X, Zhao Z, Mu R, Xu Y, Gong J. Coverage‐Dependent Behaviors of Vanadium Oxides for Chemical Looping Oxidative Dehydrogenation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005968] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Chunlei Pei
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Xin Chang
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Zhi‐Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Rentao Mu
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Yiyi Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
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71
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Chen S, Pei C, Chang X, Zhao Z, Mu R, Xu Y, Gong J. Coverage‐Dependent Behaviors of Vanadium Oxides for Chemical Looping Oxidative Dehydrogenation. Angew Chem Int Ed Engl 2020; 59:22072-22079. [DOI: 10.1002/anie.202005968] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/06/2020] [Indexed: 12/31/2022]
Affiliation(s)
- Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Chunlei Pei
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Xin Chang
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Zhi‐Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Rentao Mu
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Yiyi Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
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72
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Shah V, Joshi R, Fan LS. Thermodynamic Investigation of Process Enhancement in Chemical Looping Reforming of Methane through Modified Ca–Fe Oxygen Carrier Utilization. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03062] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vedant Shah
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Rushikesh Joshi
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Liang-Shih Fan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
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73
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Liu R, Pei C, Zhang X, Chen S, Li H, Zeng L, Mu R, Gong J. Chemical looping partial oxidation over FeWO /SiO2 catalysts. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63544-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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74
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Zhang L, Xu W, Wu J, Hu Y, Huang C, Zhu Y, Tian M, Kang Y, Pan X, Su Y, Wang J, Wang X. Identifying the Role of A-Site Cations in Modulating Oxygen Capacity of Iron-Based Perovskite for Enhanced Chemical Looping Methane-to-Syngas Conversion. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01811] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- College of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Weibin Xu
- 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
| | - Jian Wu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- College of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Yue Hu
- 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
| | - Chuande Huang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yanyan Zhu
- College of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Ming Tian
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yu Kang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaoli Pan
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yang Su
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Junhu Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaodong Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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75
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Wilke SK, Lundberg RA, Dunand DC. Hierarchical Structural Changes During Redox Cycling of Fe-Based Lamellar Foams Containing YSZ, CeO 2, or ZrO 2. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27190-27201. [PMID: 32434318 DOI: 10.1021/acsami.0c05107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Several high-temperature energy conversion and storage technologies rely on redox cycling of Fe-based materials, including storage materials in solid-oxide Fe-air batteries and oxygen carriers in chemical-looping combustion. The materials' macroporosity necessary for gas flow is, however, irreversibly diminished during redox cycling due to (i) large volume changes during the redox transformations, (ii) foam sintering at elevated operating temperature (550-900 °C), and (iii) formation and growth of Kirkendall microporosity. To address these challenges, we use directional freeze-casting to create highly porous, lamellar, Fe-composite foams containing uniformly distributed sintering inhibitor (SI) particles-either Y2O3-stabilized ZrO2 (YSZ), CeO2, or ZrO2-at 0, 5, 10, or 15% of the solid volume. We characterize these foams before, during, and after redox cycling (Fe/FeO/Fe3O4, via H2O and H2) at 800 °C using operando synchrotron X-ray microtomography, metallography, and scanning electron microscopy. Shrinkage of the foam volume and formation of a gas-blocking shell surrounding the foam are reduced as the SI fraction increases. Volumetric shrinkage after the first five redox cycles is decreased from 66% (for pure-Fe foams) to 45% (for all Fe-composites containing 5 vol % SI). Foams containing 15 vol % YSZ show no volumetric shrinkage after five cycles, although, after 20 cycles, they have shrunk 53%. Post-cycling analysis reveals segregation of the SI particles to the cores of individual lamellae, surrounded by thick layers of sintered Fe on the lamellae surfaces. This segregation occurs due to Fe diffusion through FeO to the lamellae surfaces during oxidation, leaving behind the SI particles, which are then pushed into clusters by FeO/Fe3O4 contraction during reduction. The SI is thus rendered ineffective, which explains why foam densification is delayed (compared with pure-Fe foams), rather than fully prevented, after repeated cycling.
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Affiliation(s)
- Stephen K Wilke
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Robert A Lundberg
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - David C Dunand
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
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76
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Cobalt doping modification for enhanced methane conversion at low temperature in chemical looping reforming systems. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.06.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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77
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Cao Y, Zhang C, Tsang DC, Fan J, Clark JH, Zhang S. Hydrothermal Liquefaction of Lignin to Aromatic Chemicals: Impact of Lignin Structure. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01617] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yang Cao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
- Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes, Shanghai, 200438, China
| | - Cheng Zhang
- Zhejiang Province Key Laboratory of Soil Contamination Bioremediation, Zhejiang A&F University, Hangzhou 311300, China
| | - Daniel C.W. Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong China
| | - Jiajun Fan
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, York, YO10 5DD, U.K
| | - James H. Clark
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
- Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes, Shanghai, 200438, China
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, York, YO10 5DD, U.K
| | - Shicheng Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
- Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes, Shanghai, 200438, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
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78
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Warren KJ, Hill CM, Carrillo RJ, Scheffe JR. Facile CO 2 separation and subsequent H 2 production via chemical-looping combustion over ceria-zirconia solid solutions. Phys Chem Chem Phys 2020; 22:8545-8556. [PMID: 32253404 DOI: 10.1039/d0cp00924e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel chemical-looping combustion scheme is proposed, where facile gas separation via steam condensation enables the production of sequestrable CO2 from alkanes, such as CH4, and pure H2 from H2O. This cycle consists of two steps, namely, (1) the endothermic reduction of a ceria-based solid solution via the complete oxidation of CH4, followed by (2) the exothermic oxidation of the reduced metal oxide via H2O splitting. Relative to iron oxide-based materials and undoped ceria, ceria-zirconia solid solutions possess favorable partial molar enthalpic and entropic properties; this promotes selective production of complete combustion products, H2O and CO2, during the reforming reaction. Thermodynamic predictions suggest that the complete oxidation of CH4 is possible by increasing the Zr content to 20 mol%, operating below 600 °C, increasing total pressure, or reducing the amount of delivered reactant. Furthermore, any H2, CO, or unreacted CH4 that may persist is thermodynamically favored to oxidize if exposed to unreacted oxide downstream, as is typical for a packed-bed or downer reactor configuration. Experiments were performed to validate the thermodynamic trends using isothermal thermogravimetry coupled with residual gas analysis, which confirmed that high selectivity towards H2O and CO2 is attainable for methane-driven reduction of Ce0.9Zr0.1O2; selectivities greater than 0.70 were observed at initial reaction extents. Importantly, metal oxide oxidation via H2O splitting and selective production of H2 (or CO if CO2 is the delivered oxidant) is also thermodynamically favored at the operating conditions considered for the first step. This work ultimately presents a viable avenue for the carbon-neutral conversion of CH4 (or other alkanes) to H2 if a renewable energy resource, such as solar energy, is leveraged to supply process heat.
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Affiliation(s)
- Kent J Warren
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, 32611, USA.
| | - Caroline M Hill
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, 32611, USA.
| | - Richard J Carrillo
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, 32611, USA.
| | - Jonathan R Scheffe
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, 32611, USA.
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79
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Combining Exsolution and Infiltration for Redox, Low Temperature CH4 Conversion to Syngas. Catalysts 2020. [DOI: 10.3390/catal10050468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Exsolution of surface and bulk nanoparticles in perovskites has been recently employed in chemical looping methane partial oxidation because of the emergent materials’ properties such as oxygen capacity, redox stability, durability, coke resistance and enhanced activity. Here we attempt to further lower the temperature of methane conversion by complementing exsolution with infiltration. We prepare an endo/exo-particle system using exsolution and infiltrate it with minimal amount of Rh (0.1 wt%) in order to functionalize the surface and induce low temperature activity. We achieve a temperature decrease by almost 220 °C and an increase of the activity up to 40%. We also show that the initial microstructure of the perovskite plays a key role in controlling nanoparticle anchorage and carbon deposition. Our results demonstrate that microstructure tuning and surface functionalization are important aspects to consider when designing materials for redox cycling applications.
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80
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Gao Y, Wang X, Liu J, Huang C, Zhao K, Zhao Z, Wang X, Li F. A molten carbonate shell modified perovskite redox catalyst for anaerobic oxidative dehydrogenation of ethane. SCIENCE ADVANCES 2020; 6:eaaz9339. [PMID: 32426468 PMCID: PMC7182410 DOI: 10.1126/sciadv.aaz9339] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 01/27/2020] [Indexed: 05/23/2023]
Abstract
Acceptor-doped, redox-active perovskite oxides such as La0.8Sr0.2FeO3 (LSF) are active for ethane oxidation to CO x but show poor selectivity to ethylene. This article reports molten Li2CO3 as an effective "promoter" to modify LSF for chemical looping-oxidative dehydrogenation (CL-ODH) of ethane. Under the working state, the redox catalyst is composed of a molten Li2CO3 layer covering the solid LSF substrate. The molten layer facilitates the transport of active peroxide (O2 2-) species formed on LSF while blocking the nonselective sites. Spectroscopy measurements and density functional theory calculations indicate that Fe4+→Fe3+ transition is responsible for the peroxide formation, which results in both exothermic ODH and air reoxidation steps. With >90% ethylene selectivity, up to 59% ethylene yield, and favorable heat of reactions, the core-shell redox catalyst has an excellent potential to be effective for intensified ethane conversion. The mechanistic findings also provide a generalized approach for designing CL-ODH redox catalysts.
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Affiliation(s)
- Yunfei Gao
- North Carolina State University, Campus Box 7905, Raleigh, NC 27695-7905, USA
| | - Xijun Wang
- North Carolina State University, Campus Box 7905, Raleigh, NC 27695-7905, USA
| | - Junchen Liu
- North Carolina State University, Campus Box 7905, Raleigh, NC 27695-7905, USA
| | - Chuande Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China
| | - Kun Zhao
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, PR China
| | - Zengli Zhao
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, PR China
| | - Xiaodong Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China
| | - Fanxing Li
- North Carolina State University, Campus Box 7905, Raleigh, NC 27695-7905, USA
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81
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82
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Abstract
Methane activation chemistry, despite being widely reported in literature, remains to date a subject of debate. The challenges in this reaction are not limited to methane activation but extend to stabilization of the intermediate species. The low C-H dissociation energy of intermediates vs. reactants leads to CO2 formation. For selective oxidation, nature presents methane monooxygenase as a benchmark. This enzyme selectively consumes methane by breaking it down into methanol. To assemble an active site similar to monooxygenase, the literature reports Cu-ZSM-5, Fe-ZSM-5, and Cu-MOR, using zeolites and systems like CeO2/Cu2O/Cu. However, the trade-off between methane activation and methanol selectivity remains a challenge. Density functional theory (DFT) calculations and spectroscopic studies indicate catalyst reducibility, oxygen mobility, and water as co-feed as primary factors that can assist in enabling higher selectivity. The use of chemical looping can further improve selectivity. However, in all systems, improvements in productivity per cycle are required in order to meet the economical/industrial standards.
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83
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Kousi K, Neagu D, Bekris L, Papaioannou EI, Metcalfe IS. Endogenous Nanoparticles Strain Perovskite Host Lattice Providing Oxygen Capacity and Driving Oxygen Exchange and CH
4
Conversion to Syngas. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915140] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kalliopi Kousi
- School of EngineeringNewcastle University Newcastle Merz Court NE1 7RU UK
| | - Dragos Neagu
- School of EngineeringNewcastle University Newcastle Merz Court NE1 7RU UK
| | - Leonidas Bekris
- School of EngineeringNewcastle University Newcastle Merz Court NE1 7RU UK
| | | | - Ian S. Metcalfe
- School of EngineeringNewcastle University Newcastle Merz Court NE1 7RU UK
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84
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Kolesnichenko NV, Ezhova NN, Snatenkova YM. Lower olefins from methane: recent advances. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4900] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Modern methods for methane conversion to lower olefins having from 2 to 4 carbon atoms per molecule are generalized. Multistage processing of methane into ethylene and propylene via syngas or methyl chloride and methods for direct conversion of CH4 to ethylene are described. Direct conversion of syngas to olefins as well as indirect routes of the process via methanol or dimethyl ether are considered. Particular attention is paid to innovative methods of olefin synthesis. Recent achievements in the design of catalysts and development of new techniques for efficient implementation of oxidative coupling of methane and methanol conversion to olefins are analyzed and systematized. Advances in commercializing these processes are pointed out. Novel catalysts for Fischer – Tropsch synthesis of lower olefins from syngas and for innovative technique using oxide – zeolite hybrid catalytic systems are described. The promise of a new route to lower olefins by methane conversion via dimethyl ether is shown. Prospects for the synthesis of lower olefins via methyl chloride and using non-oxidative coupling of methane are discussed. The most efficient processes used for processing of methane to lower olefins are compared on the basis of degree of conversion of carbonaceous feed, possibility to integrate with available full-scale production, number of reaction stages and thermal load distribution.
The bibliography includes 346 references.
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85
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Investigations on fluid dynamics of binary particles in a dual fluidized bed reactor system for enhanced calcium looping gasification process. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.11.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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86
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Chang H, Bjørgum E, Mihai O, Yang J, Lein HL, Grande T, Raaen S, Zhu YA, Holmen A, Chen D. Effects of Oxygen Mobility in La–Fe-Based Perovskites on the Catalytic Activity and Selectivity of Methane Oxidation. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05154] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hui Chang
- United Chemical Reaction Engineering Research Institute (UNILAB), State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Erlend Bjørgum
- Department of Chemical Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Oana Mihai
- Department of Chemical Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Jie Yang
- United Chemical Reaction Engineering Research Institute (UNILAB), State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hilde Lea Lein
- Department of Materials Science and Engineering, Norwegian University of Science and Technology, N-9491 Trondheim, Norway
| | - Tor Grande
- Department of Materials Science and Engineering, Norwegian University of Science and Technology, N-9491 Trondheim, Norway
| | - Steinar Raaen
- Department of Physics, Norwegian University of Science and Technology, N-9491 Trondheim, Norway
| | - Yi-An Zhu
- United Chemical Reaction Engineering Research Institute (UNILAB), State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Anders Holmen
- Department of Chemical Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
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87
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Dou J, Krzystowczyk E, Wang X, Robbins T, Ma L, Liu X, Li F. A- and B-site Codoped SrFeO 3 Oxygen Sorbents for Enhanced Chemical Looping Air Separation. CHEMSUSCHEM 2020; 13:385-393. [PMID: 31710175 DOI: 10.1002/cssc.201902698] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/08/2019] [Indexed: 06/10/2023]
Abstract
Chemical-looping air separation has numerous potential benefits in terms of energy saving and emission reductions. The current study details a combination of density functional theory calculation and experimental efforts to design A- and B-site codoped SrFeO3 perovskites as "low-temperature" oxygen sorbents for chemical-looping air separation. Substitution of the SrFeO3 host structure with Ca and Co lowers oxygen vacancy formation energy by 0.24-0.46 eV and decreases the oxygen release temperature. As a result, Sr1-x Cax Fe1-y Coy O3 (SCFC; x=0.2, 0.0<y<1.0) spontaneously releases oxygen at 400-500 °C even under a relatively high oxygen partial pressure (e.g. P O 2 =0.05 atm). Sr0.8 Ca0.2 Fe0.4 Co0.6 O3 exhibits a significantly higher oxygen capacity of 1.2 wt % at 400 °C and under a P O 2 swing between 0.05 and 0.2 atm, when compared to the <0.2 wt % capacity for undoped a SrFeO3 (SF) and Ca-doped Sr0.8 Ca0.2 FeO3 (SCF). Electrical conductivity relaxation (ECR) study demonstrates that codoping of Ca and Co lowers the activation energy of oxygen diffusion and surface oxygen exchange by 26.6 or 137.9 kJ mol-1 , respectively, resulting in faster redox kinetics for SCFC than for SCF perovskite. The SCFC oxygen sorbent also exhibits excellent stability for 2000 redox cycles for air separation.
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Affiliation(s)
- Jian Dou
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina, 27695-7905, USA
| | - Emily Krzystowczyk
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina, 27695-7905, USA
| | - Xijun Wang
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina, 27695-7905, USA
| | - Thomas Robbins
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina, 27695-7905, USA
| | - Liang Ma
- Department of Mechanical and Aerospace Engineering, West Virginia University, 1374 Evansdale Drive, Morgantown, WV, 26506, USA
| | - Xingbo Liu
- Department of Mechanical and Aerospace Engineering, West Virginia University, 1374 Evansdale Drive, Morgantown, WV, 26506, USA
| | - Fanxing Li
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina, 27695-7905, USA
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88
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Kousi K, Neagu D, Bekris L, Papaioannou EI, Metcalfe IS. Endogenous Nanoparticles Strain Perovskite Host Lattice Providing Oxygen Capacity and Driving Oxygen Exchange and CH 4 Conversion to Syngas. Angew Chem Int Ed Engl 2020; 59:2510-2519. [PMID: 31804017 DOI: 10.1002/anie.201915140] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Indexed: 11/07/2022]
Abstract
Particles dispersed on the surface of oxide supports have enabled a wealth of applications in electrocatalysis, photocatalysis, and heterogeneous catalysis. Dispersing nanoparticles within the bulk of oxides is, however, synthetically much more challenging and therefore less explored, but could open new dimensions to control material properties analogous to substitutional doping of ions in crystal lattices. Here we demonstrate such a concept allowing extensive, controlled growth of metallic nanoparticles, at nanoscale proximity, within a perovskite oxide lattice as well as on its surface. By employing operando techniques, we show that in the emergent nanostructure, the endogenous nanoparticles and the perovskite lattice become reciprocally strained and seamlessly connected, enabling enhanced oxygen exchange. Additionally, even deeply embedded nanoparticles can reversibly exchange oxygen with a methane stream, driving its redox conversion to syngas with remarkable selectivity and long term cyclability while surface particles are present. These results not only exemplify the means to create extensive, self-strained nanoarchitectures with enhanced oxygen transport and storage capabilities, but also demonstrate that deeply submerged, redox-active nanoparticles could be entirely accessible to reaction environments, driving redox transformations and thus offering intriguing new alternatives to design materials underpinning several energy conversion technologies.
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Affiliation(s)
- Kalliopi Kousi
- School of Engineering, Newcastle University, Newcastle, Merz Court, NE1 7RU, UK
| | - Dragos Neagu
- School of Engineering, Newcastle University, Newcastle, Merz Court, NE1 7RU, UK
| | - Leonidas Bekris
- School of Engineering, Newcastle University, Newcastle, Merz Court, NE1 7RU, UK
| | | | - Ian S Metcalfe
- School of Engineering, Newcastle University, Newcastle, Merz Court, NE1 7RU, UK
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89
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Han S, Zhao D, Lund H, Rockstroh N, Bartling S, Doronkin DE, Grunwaldt JD, Gao M, Jiang G, Kondratenko EV. TiO2-Supported catalysts with ZnO and ZrO2 for non-oxidative dehydrogenation of propane: mechanistic analysis and application potential. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01416h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-oxidative dehydrogenation of propane is one of the most promising technologies for propene production in terms of environmental impact and sustainability.
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Affiliation(s)
- Shanlei Han
- Leibniz-Institut für Katalyse e.V
- D-18059 Rostock
- Germany
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum, Beijing
| | - Dan Zhao
- Leibniz-Institut für Katalyse e.V
- D-18059 Rostock
- Germany
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum, Beijing
| | - Henrik Lund
- Leibniz-Institut für Katalyse e.V
- D-18059 Rostock
- Germany
| | | | | | - Dmitry E. Doronkin
- Institute of Catalysis Research and Technology and Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Jan-Dierk Grunwaldt
- Institute of Catalysis Research and Technology and Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Manglai Gao
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum, Beijing
- Beijing
- P. R. China
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum, Beijing
- Beijing
- P. R. China
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90
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Qin L, Cheng Z, Baser D, Goldenbaum T, Fan JA, Fan LS. Cyclic redox scheme towards shale gas reforming: a review and perspectives. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00301h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkanes are potential precursors to many value-added chemicals such as olefins and other petrochemicals.
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Affiliation(s)
- Lang Qin
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Zhuo Cheng
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Deven Baser
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Tyler Goldenbaum
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Jonathan A. Fan
- Department of Electrical Engineering
- Ginzton Laboratory
- Spilker Engineering and Applied Sciences
- Stanford University
- Stanford
| | - Liang-Shih Fan
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
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91
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Liu Y, Qin L, Cheng Z, Goetze JW, Kong F, Fan JA, Fan LS. Near 100% CO selectivity in nanoscaled iron-based oxygen carriers for chemical looping methane partial oxidation. Nat Commun 2019; 10:5503. [PMID: 31796744 PMCID: PMC6890731 DOI: 10.1038/s41467-019-13560-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 11/07/2019] [Indexed: 11/28/2022] Open
Abstract
Chemical looping methane partial oxidation provides an energy and cost effective route for methane utilization. However, there is considerable CO2 co-production in current chemical looping systems, rendering a decreased productivity in value-added fuels or chemicals. In this work, we demonstrate that the co-production of CO2 can be dramatically suppressed in methane partial oxidation reactions using iron oxide nanoparticles embedded in mesoporous silica matrix. We experimentally obtain near 100% CO selectivity in a cyclic redox system at 750–935 °C, which is a significantly lower temperature range than in conventional oxygen carrier systems. Density functional theory calculations elucidate the origins for such selectivity and show that low-coordinated lattice oxygen atoms on the surface of nanoparticles significantly promote Fe–O bond cleavage and CO formation. We envision that embedded nanostructured oxygen carriers have the potential to serve as a general materials platform for redox reactions with nanomaterials at high temperatures. Chemical looping methane partial oxidation is an effective technology to produce syngas with a minimal energy penalty. Here, the authors design and develop a mesoporous silica supported nanoparticle oxygen carrier that enables a near 100% CO generation with high recyclability and substantially lower operating temperature.
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Affiliation(s)
- Yan Liu
- Department of Chemical and Biomolecular Engineering, The Ohio State University, 151W Woodruff Ave, Columbus, OH, 43210, USA
| | - Lang Qin
- Department of Chemical and Biomolecular Engineering, The Ohio State University, 151W Woodruff Ave, Columbus, OH, 43210, USA
| | - Zhuo Cheng
- Department of Chemical and Biomolecular Engineering, The Ohio State University, 151W Woodruff Ave, Columbus, OH, 43210, USA
| | - Josh W Goetze
- Department of Chemical and Biomolecular Engineering, The Ohio State University, 151W Woodruff Ave, Columbus, OH, 43210, USA
| | - Fanhe Kong
- Department of Chemical and Biomolecular Engineering, The Ohio State University, 151W Woodruff Ave, Columbus, OH, 43210, USA
| | - Jonathan A Fan
- Department of Electrical Engineering, Ginzton Laboratory, Spilker Engineering and Applied Sciences, Stanford University, 348 Via Pueblo Mall, Stanford, CA, 94305, USA
| | - Liang-Shih Fan
- Department of Chemical and Biomolecular Engineering, The Ohio State University, 151W Woodruff Ave, Columbus, OH, 43210, USA.
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92
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Chen S, Zeng L, Mu R, Xiong C, Zhao ZJ, Zhao C, Pei C, Peng L, Luo J, Fan LS, Gong J. Modulating Lattice Oxygen in Dual-Functional Mo-V-O Mixed Oxides for Chemical Looping Oxidative Dehydrogenation. J Am Chem Soc 2019; 141:18653-18657. [PMID: 31703164 DOI: 10.1021/jacs.9b09235] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Oxygen chemistry plays a pivotal role in numerous chemical reactions. In particular, selective cleavage of C-H bonds by metal oxo species is highly desirable in dehydrogenation of light alkanes. However, high selectivity of alkene is usually hampered through consecutive oxygenation reactions in a conventional oxidative dehydrogenation (ODH) scheme. Herein, we show that dual-functional Mo-V-O mixed oxides selectively convert propane to propylene via an alternative chemical looping oxidative dehydrogenation (CL-ODH) approach. At 500 °C, we obtain 89% propylene selectivity at 36% propane conversion over 100 dehydrogenation-regeneration cycles. We attribute such high propylene yield-which exceeds that of previously reported ODH catalysts-to the involvement and precise modulation of bulk lattice oxygen via atomic-scale doping of Mo and show that increasing the binding energy of V-O bonds is critical to enhance the selectivity of propylene. This work provides the fundamental understanding of metal-oxygen chemistry and a promising strategy for alkane dehydrogenation.
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Affiliation(s)
- Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
| | - Liang Zeng
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
| | - Rentao Mu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
| | - Chuanye Xiong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
| | - Zhi-Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
| | - Chengjie Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
| | - Chunlei Pei
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
| | - Luming Peng
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
| | - Jun Luo
- Center for Electron Microscopy, Institute for New Energy Materials and Low-Carbon Technologies, School of Materials , Tianjin University of Technology , Tianjin 300384 , China
| | - Liang-Shih Fan
- William G. Lowrie Department of Chemical and Biomolecular Engineering , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , China
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93
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Ruhl R, Song J, Thoréton V, Singh SP, Wiik K, Larring Y, Bouwmeester HJM. Structure, electrical conductivity and oxygen transport properties of perovskite-type oxides CaMn 1-x-yTi xFe yO 3-δ. Phys Chem Chem Phys 2019; 21:21824-21835. [PMID: 31552399 DOI: 10.1039/c9cp04911h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Calcium manganite-based perovskite-type oxides hold promise for application in chemical looping combustion processes and oxygen transport membranes. In this study, we have investigated the structure, electrical conductivity and oxygen transport properties of perovskite-type oxides CaMn1-x-yTixFeyO3-δ. Distinct from previous work, data of high-temperature X-ray diffraction (HT-XRD) in the temperature range 600-1000 °C (with intervals of 25 °C) demonstrates that CaMnO3-δ (CM) transforms from orthorhombic to a mixture of orthorhombic and tetragonal phases between 875 °C and 900 °C. Rietveld refinements show the formation of a pure tetragonal phase at 975 °C and of a pure cubic phase at 1000 °C. Partial substitution of manganese by iron and/or titanium to yield CaMn0.875Ti0.125O3-δ (CMT), CaMn0.85Fe0.15O3-δ (CMF) or CaMn0.725Ti0.125Fe0.15O3-δ (CMTF) leads to different phase behaviours. While CMT remains orthorhombic up to the highest temperature covered by the HT-XRD experiments, CMF and CMTF undergo an orthorhombic → tetragonal → cubic sequence of phase transitions. Electrical conductivity relaxation measurements are conducted to determine the chemical diffusion coefficient (Dchem) and the surface exchange coefficient (kchem) of the materials. The results demonstrate that oxygen transport is hindered in the tetragonal phase, when occurring, which is attributed to a possible ordering of oxygen vacancies. The small polaron electrical conductivity of CM in the cited temperature range is lowered upon partial manganese substitution, by about 10% for CMF and up to half an order of magnitude for CMT and CMTF.
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Affiliation(s)
- Rian Ruhl
- Electrochemistry Research Group, Membrane Science and Technology, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands.
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94
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Choi M, Na HG, Bang JH, Oum W, Choi SW, Kim SS, Kim HW, Jin C. Fast Semiconductor-Metal Bidirectional Transition by Flame Chemical Vapor Deposition. ACS OMEGA 2019; 4:11824-11831. [PMID: 31460291 PMCID: PMC6682083 DOI: 10.1021/acsomega.9b01112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/26/2019] [Indexed: 06/10/2023]
Abstract
A simple yet powerful flame chemical vapor deposition technique is proposed that allows free control of the surface morphology, microstructure, and composition of existing materials with regard to various functionalities within a short process time (in seconds) at room temperature and atmospheric pressure as per the requirement. Since the heat energy is directly transferred to the material surface, the redox periodically converges to the energy dynamic equilibrium depending on the energy injection time; therefore, bidirectional transition between the semiconductor/metal is optionally available. To demonstrate this, a variety of Sn-based particles were created on preformed SnO2 nanowires, and this has been interpreted as a new mechanism for the response and response times of gas-sensing, which are representative indicators of the most surface-sensitive applications and show one-to-one correspondence between theoretical and experimental results. The detailed technologies derived herein are clearly influential in both research and industry.
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Affiliation(s)
- Myung
Sik Choi
- Division
of Materials Science and Engineering and The Research Institute of Industrial
Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Han Gil Na
- Division
of Materials Science and Engineering and The Research Institute of Industrial
Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Jae Hoon Bang
- Division
of Materials Science and Engineering and The Research Institute of Industrial
Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Wansik Oum
- Division
of Materials Science and Engineering and The Research Institute of Industrial
Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Sun-Woo Choi
- Department
of Materials and Metallurgical Engineering, Kangwon National University, Samcheok 25913, Republic of Korea
| | - Sang Sub Kim
- Department
of Materials Science and Engineering, Inha
University, Incheon 22212, Republic of Korea
| | - Hyoun Woo Kim
- Division
of Materials Science and Engineering and The Research Institute of Industrial
Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Changhyun Jin
- Division
of Materials Science and Engineering and The Research Institute of Industrial
Science, Hanyang University, Seoul 04763, Republic of Korea
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95
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Buelens LC, Poelman H, Marin GB, Galvita VV. 110th Anniversary: Carbon Dioxide and Chemical Looping: Current Research Trends. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02521] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lukas C. Buelens
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Hilde Poelman
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Guy B. Marin
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Vladimir V. Galvita
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
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96
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Peng H, Zhang X, Han X, You X, Lin S, Chen H, Liu W, Wang X, Zhang N, Wang Z, Wu P, Zhu H, Dai S. Catalysts in Coronas: A Surface Spatial Confinement Strategy for High-Performance Catalysts in Methane Dry Reforming. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00968] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Honggen Peng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Xianhua Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Xue Han
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Xiaojuan You
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Sixue Lin
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Hao Chen
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Wenming Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Xiang Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Ning Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, Jiangxi 330031, China
| | - Zheng Wang
- State Key Laboratory of High-efficiency Utilization of Coal & Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062, China
| | - Huiyuan Zhu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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97
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Wang X, Du X, Yu W, Zhang J, Wei J. Coproduction of Hydrogen and Methanol from Methane by Chemical Looping Reforming. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01695] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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98
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Xiong C, Chen S, Yang P, Zha S, Zhao ZJ, Gong J. Structure–Performance Relationships for Propane Dehydrogenation over Aluminum Supported Vanadium Oxide. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04701] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chuanye Xiong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Piaoping Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Shenjun Zha
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Zhi-Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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99
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Defect engineering of metal-oxide interface for proximity of photooxidation and photoreduction. Proc Natl Acad Sci U S A 2019; 116:10232-10237. [PMID: 31064878 DOI: 10.1073/pnas.1901631116] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Close proximity between different catalytic sites is crucial for accelerating or even enabling many important catalytic reactions. Photooxidation and photoreduction in photocatalysis are generally separated from each other, which arises from the hole-electron separation on photocatalyst surface. Here, we show with widely studied photocatalyst Pt/[Formula: see text] as a model, that concentrating abundant oxygen vacancies only at the metal-oxide interface can locate hole-driven oxidation sites in proximity to electron-driven reduction sites for triggering unusual reactions. Solar hydrogen production from aqueous-phase alcohols, whose hydrogen yield per photon is theoretically limited below 0.5 through conventional reactions, achieves an ultrahigh hydrogen yield per photon of 1.28 through the unusual reactions. We demonstrated that such defect engineering enables hole-driven CO oxidation at the Pt-[Formula: see text] interface to occur, which opens up room-temperature alcohol decomposition on Pt nanoparticles to [Formula: see text] and adsorbed CO, accompanying with electron-driven proton reduction on Pt to [Formula: see text].
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100
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Sandvik P, Wang W, Kathe M, Kong F, Fan LS. Operating Strategy of Chemical Looping Systems with Varied Reducer and Combustor Pressures. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06248] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter Sandvik
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - William Wang
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Mandar Kathe
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Fanhe Kong
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Liang-Shih Fan
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
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