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Maiola ML, Buss JA. Accessing Ta/Cu Architectures via Metal-Metal Salt Metatheses: Heterobimetallic C-H Bond Activation Affords μ-Hydrides. Angew Chem Int Ed Engl 2023; 62:e202311721. [PMID: 37831544 DOI: 10.1002/anie.202311721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 10/15/2023]
Abstract
We employ a metal-metal salt metathesis strategy to access low-valent tantalum-copper heterometallic architectures (Ta-μ2 -H2 -Cu and Ta-μ3 -H2 -Cu3 ) that emulate structural elements proposed for surface alloyed nanomaterials. Whereas cluster assembly with carbonylmetalates is well precedented, the use of the corresponding polyarene transition metal anions is underexplored, despite recognition of these highly reactive fragments as storable sources of atomic Mn- . Our application of this strategy provides structurally unique early-late bimetallic species. These complexes incorporate bridging hydride ligands during their syntheses, the origin of which is elucidated via detailed isotopic labelling studies. Modification of ancillary ligand sterics and electronics alters the mechanism of bimetallic assembly; a trinuclear complex resulting from dinuclear C-H activation is demonstrated as an intermediate en route to formation of the bimetallic. Further validating the promise of this rational, bottom-up approach, a unique tetranuclear species was synthesized, featuring a Ta centre bearing three Ta-Cu interactions.
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Affiliation(s)
- Michela L Maiola
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109, USA
| | - Joshua A Buss
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109, USA
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2
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Bhalothia D, Yan C, Hiraoka N, Ishii H, Liao YF, Chen PC, Wang KW, Chou JP, Dai S, Chen TY. Pt-Mediated Interface Engineering Boosts the Oxygen Reduction Reaction Performance of Ni Hydroxide-Supported Pd Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16177-16188. [PMID: 36939741 DOI: 10.1021/acsami.2c21814] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Fuel cells are considered potential energy conversion devices for utopia; nevertheless, finding a highly efficacious and economical electrocatalyst for the oxygen reduction reaction (ORR) is of great interest. By keeping this in view, we have proposed a novel design of a trimetallic nanocatalyst (NC) comprising atomic Pt clusters at the heterogeneous Ni(OH)2-to-Pd interface (denoted NPP-70). The as-prepared material surpasses the commercial J.M.-Pt/C (20 wt %) catalyst by ∼ 166 and ∼19 times with exceptionally high specific and mass activities of 16.11 mA cm-2 and 484.8 mA mgPt-1 at 0.90 V versus reversible hydrogen electrode (RHE) in alkaline ORR (0.1 M KOH), respectively. On top of that, NPP-70 NC retains nearly 100% performance after 10k accelerated durability test (ADT) cycles. The results of physical characterization and electrochemical analysis confirm that atomic-scale Pt clusters induce strong lattice strain (compressive) at the Ni(OH)2-to-Pd interface, which triggers the electron relocation from Ni to Pt atoms. Such charge localization is vital for O2 splitting on surface Pt atoms, followed by the relocation of OH- ions from the Pd surface. Besides, a sharp fall down in ORR performance (mass activity is 37 mA mgPt-1 at 0.90 V versus RHE) is observed when the Pt clusters are decorated on the surface of NiOx and Pd (denoted NPP-RT). In situ partial fluorescence yield mode X-ray absorption spectroscopy (PFY-XAS) was employed to reveal the ORR pathways on both configurations. The obtained results demonstrate that interface engineering can be a potential approach to boost the electrocatalytic activity of metal hydroxide/oxide-supported Pd nanoparticles and in turn allow Pd to be a promising alternative for commercial Pt catalysts.
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Affiliation(s)
- Dinesh Bhalothia
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Che Yan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Nozomu Hiraoka
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - Hirofumi Ishii
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - Yen-Fa Liao
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - Po-Chun Chen
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Kuan-Wen Wang
- Institute of Materials Science and Engineering, National Central University, Taoyuan City 32001, Taiwan
| | - Jyh-Pin Chou
- Department of Physics, National Changhua University of Education, Changhua 50007, Taiwan
| | - Sheng Dai
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Tsan-Yao Chen
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Centre, National Cheng Kung University, Tainan 70101, Taiwan
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Wu T, Cui J, Wang C, Zhang G, Li L, Qu Y, Niu Y. Oxygen Vacancy-Mediated Activates Oxygen to Produce Reactive Oxygen Species (ROS) on Ce-Modified Activated Clay for Degradation of Organic Compounds without Hydrogen Peroxide in Strong Acid. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4410. [PMID: 36558264 PMCID: PMC9785360 DOI: 10.3390/nano12244410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/24/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
The treatment of acid wastewater to remove organic matter in acid wastewater and recycle valuable resources has great significance. However, the classical advanced oxidation process (AOPs), such as the Fenton reaction, encountered a bottleneck under the conditions of strong acid. Herein, making use of the oxidation properties of CeAY (CeO2@acid clay), we built an AOPs reaction system without H2O2 under a strong acid condition that can realize the transformation of organic matter in industrial wastewater. The X-ray photoelectron spectroscopy (XPS) proved that the CeAY based on Ce3+ as an active center has abundant oxygen vacancies, which can catalyze O2 to produce reactive oxygen species (ROS). Based on the electron spin-resonance spectroscopy spectrum and radical trapping experiments, the production of •O2- and •OH can be determined, which are the essential factors of the degradation of organic compounds. In the system of pH = 1.0, when 1 mg CeAY is added to 10 mL of wastewater, the degradation efficiency of an aniline solution with a 5 mg/L effluent concentration is 100%, and that of a benzoic acid solution with a 100 mg/L effluent concentration is 50% after 10 min of reaction. This work may provide novel insights into the removal of organic pollutants in a strong acid water matrix.
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Affiliation(s)
- Tianming Wu
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Jing Cui
- College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Changjiang Wang
- Shandong Zhengyuan Geological Resource Exploration Co. Ltd., China Metallurgical Geology Bureau, Weifang 261200, China
| | - Gong Zhang
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Limin Li
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Yue Qu
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Yusheng Niu
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao 266071, China
- School of Tourism and Geography Science, Qingdao University, Qingdao 266071, China
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4
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Xiang Q, Yan R, Gao G, Wang S. Electrooxidation of Methanol on PANI‐CeO
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@Pt Catalysts. ChemistrySelect 2022. [DOI: 10.1002/slct.202203391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qun Xiang
- Institute of Physical Science and Information Technology Anhui University Hefei Anhui, 230601 China
| | - Ruiwen Yan
- Institute of Physical Science and Information Technology Anhui University Hefei Anhui, 230601 China
| | - Guiqi Gao
- Institute of Physical Science and Information Technology Anhui University Hefei Anhui, 230601 China
| | - Shuang Wang
- Institute of Physical Science and Information Technology Anhui University Hefei Anhui, 230601 China
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Optimization of SnPd Shell Configuration to Boost ORR Performance of Pt-Clusters Decorated CoOx@SnPd Core-Shell Nanocatalyst. Catalysts 2022. [DOI: 10.3390/catal12111411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fuel cells are expected to bring change to the whole human race when commercialized, however, the sluggish kinetics of oxygen reduction reaction (ORR) severely hampers their commercial viability. Thus far, platinum (Pt) based catalysts are nearly inevitable due to the harsh redox environment of fuel cells. Thus, minimizing Pt metal loading and increasing Pt utilization is a paramount factor for realizing fuel cell technologies. In this context, herein, we developed a multi-metallic nanocatalyst (NC) comprising Pt-clusters (1 wt.%) decorated SnPd composite shell over cobalt-oxide core crystal underneath (denoted as CSPP). For optimizing the ORR performance of the as-prepared NC, we further modulated the configuration of the SnPd shell. In the optimum case, when the Sn/Pd ratio is 0.5 (denoted as CSPP 1005), the ORR mass activity (MA) is 3034.7 mA mgPt−1 at 0.85 V vs. RHE in 0.1 M KOH electrolyte, which is 45-times higher than the commercial Johnson Matthey-Pt/C (J.M.-Pt/C; 20 wt.% Pt) catalyst (67 mA mgPt−1). The results of physical inspections along with electrochemical analysis suggest that such high performance of CSPP 1005 NC can be attributed to the synergistic collaboration between Pt-clusters, PtPd nanoalloys, and adjacent SnPd domains, where Pt-clusters and PtPd nanoalloys promote the O2 adsorption and subsequent splitting, while the SnPd shell favours the OH− relocation step. We believe that the obtained results will open a new avenue for further exploring the high-performance Pt-based catalysts with low Pt-loading and high utilization.
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Superior Performance of an Iron-Platinum/Vulcan Carbon Fuel Cell Catalyst. Catalysts 2022. [DOI: 10.3390/catal12111369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
This work reports on the synthesis of iron-platinum on Vulcan carbon (FePt/VC) as an effective catalyst for the electrooxidation of molecular hydrogen at the anode, and electroreduction of molecular oxygen at the cathode of a proton exchange membrane fuel cell. The catalyst was synthesized by using the simple polyol route and characterized by XRD and HRTEM along with EDS. The catalyst demonstrated superior electrocatalytic activity for the oxygen reduction reaction and the oxidation of hydrogen with a 2.4- and 1.2-fold increase compared to platinum on Vulcan carbon (Pt/VC), respectively. Successful application of FePt/VC catalyst in a self-breathing fuel cell also showed a 1.7-fold increase in maximum power density compared to Pt/VC. Further analysis by accelerated stress test demonstrated the superior stability of FePt on the VC substrate with a 4% performance degradation after 60,000 cycles. In comparison, a degradation of 6% after 10,000 cycles has been reported for Pt/Ketjenblack.
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Beniwal A, Bhalothia D, Yeh W, Cheng M, Yan C, Chen PC, Wang KW, Chen TY. Co-Existence of Atomic Pt and CoPt Nanoclusters on Co/SnO x Mix-Oxide Demonstrates an Ultra-High-Performance Oxygen Reduction Reaction Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2824. [PMID: 36014688 PMCID: PMC9413684 DOI: 10.3390/nano12162824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/12/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
An effective approach for increasing the Noble metal-utilization by decorating the atomic Pt clusters (1 wt.%) on the CoO2@SnPd2 nanoparticle (denoted as CSPP) for oxygen reduction reaction (ORR) is demonstrated in this study. For the optimum case when the impregnation temperature for Co-crystal growth is 50 °C (denoted as CSPP-50), the CoPt nanoalloys and Pt-clusters decoration with multiple metal-to-metal oxide interfaces are formed. Such a nanocatalyst (NC) outperforms the commercial Johnson Matthey-Pt/C (J.M.-Pt/C; 20 wt.% Pt) catalyst by 78-folds with an outstanding mass activity (MA) of 4330 mA mgPt-1 at 0.85 V vs. RHE in an alkaline medium (0.1 M KOH). The results of physical structure inspections along with electrochemical analysis suggest that such a remarkable ORR performance is dominated by the potential synergism between the surface anchored Pt-clusters, CoPt-nanoalloys, and adjacent SnPd2 domain, where Pt-clusters offer ideal adsorption energy for O2 splitting and CoPt-nanoalloys along with SnPd2 domain boost the subsequent desorption of hydroxide ions (OH-).
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Affiliation(s)
- Amisha Beniwal
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Dinesh Bhalothia
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Wei Yeh
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Mingxing Cheng
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Che Yan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Po-Chun Chen
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Kuan-Wen Wang
- Institute of Materials Science and Engineering, National Central University, Taoyuan City 32001, Taiwan
| | - Tsan-Yao Chen
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Centre, National Cheng Kung University, Tainan 70101, Taiwan
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Guan C, Chen H, Feng H. Room-Temperature Synthesis of Sub-2 nm Ultrasmall Platinum-Rare-Earth Metal Nanoalloys for Hydrogen Evolution Reaction. Inorg Chem 2022; 61:13379-13385. [PMID: 35976031 DOI: 10.1021/acs.inorgchem.2c01502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To tune the activity of Pt alloy electrocatalysts and reduce the Pt loading, researchers have intensively studied alloys of Pt with late transition metals. However, Pt alloy formation with rare-earth (RE) elements through the traditional chemical route is still a challenge due to the vastly different standard reduction potentials. Here, we report a universal chemical method to prepare a series of Pt/RE (RE = La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Lu) nanoalloys with tunable compositions and ultrasmall particle sizes (sub-2 nm). These Pt-RE nanoalloys were synthesized by a strong liquid metal reduction with high-speed shearing assistance at room temperature. Among the nine Pt-RE alloy catalysts, the PtNd/C shows the best hydrogen evolution reaction (HER) activity, stability, and durability compared to commercial Pt/C. The PtNd/C shows an overpotential of 25.9 mV at the current density of 10 mA/cm2 with a Tafel slope of 19.5 mV/dec and excellent stability in the acidic medium. This work not only provides a general and scalable strategy for synthesizing noble metal-RE alloys but also highlights noble metal-RE alloys as sufficiently advanced catalysts and accelerates the research of noble metal-RE alloy in energy-related applications.
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Affiliation(s)
- Chaoqun Guan
- Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Hao Chen
- Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Hongbin Feng
- Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
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9
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Dysprosium regulated platinum particles as a bimetallic alloy catalyst for oxygen reduction reaction. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Peera SG, Liu C. Unconventional and scalable synthesis of non-precious metal electrocatalysts for practical proton exchange membrane and alkaline fuel cells: A solid-state co-ordination synthesis approach. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214554] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Wang Y, Han C, Xie P, Li H, Yao P, Cao J, Ruan M, Song P, Gong X, Lu M, Xu W. Highly dispersed PtNi nanoparticles modified carbon black as high-performanced electrocatalyst for oxygen reduction in acidic medium. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115908] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Zhang Y, Ye K, Gu Q, Jiang Q, Qin J, Leng D, Liu Q, Yang B, Yin F. Optimized oxygen reduction activity by tuning shell component in Pd@Pt-based core-shell electrocatalysts. J Colloid Interface Sci 2021; 604:301-309. [PMID: 34265687 DOI: 10.1016/j.jcis.2021.06.136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 11/26/2022]
Abstract
Combining the interests of core-shell and alloy structures, herein we report the versatile co-reduction synthesis of Pd@Pt-based core-shell nanoparticles. The current strategy can effectively tune the component of shell, from isolated Pt to binary PtNi alloy, then ternary PtNi-M (M = Fe or Cu) alloy. Further, significant improvement of oxygen reduction reaction (ORR) activity is optimized by the change in shell component. Compared to Pd@Pt/C, Pd@PtNi/C catalyst presents the ORR-helpful mass activity of 1.29 A mg-1Pt. By incorporating a third metal (M) into shell layer, the optimized mass activity of Pd@PtNiFe/C and Pd@PtNiCu/C catalysts is 1.1 times and 1.4 times higher than that of Pd@PtNi/C, respectively. Meanwhile, the lower activity decays of 11.0% for Pd@PtNiFe/C and 10.6% for Pd@PtNiCu/C are obtained compared with that of Pd@PtNi/C (12.4%) after 5,000 cycles, respectively.
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Affiliation(s)
- Yafeng Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Kai Ye
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Qingqing Gu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian 116023, China; Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian 116023, China
| | - Qike Jiang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian 116023, China
| | - Juan Qin
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Deying Leng
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Qianru Liu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Bing Yang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian 116023, China; Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian 116023, China.
| | - Feng Yin
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China; Key Laboratory of Syngas Conversion of Shaanxi Province, Shaanxi Normal University, Xi'an 710119, China.
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