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Dias EH, da Silva GTST, da Cruz JC, Ribeiro C. One‐pot solvothermal synthesis of Carbon black‐supported CuO for catalysis of CO2 electroreduction. ChemElectroChem 2022. [DOI: 10.1002/celc.202200206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Eduardo H. Dias
- University of Sao Paulo: Universidade de Sao Paulo Institute of Chemistry of São Carlos BRAZIL
| | | | | | - Caue Ribeiro
- EMBRAPA Dept. of CNPDIA Rua XV de Novembro, 1452 13560-970 Sao Carlos BRAZIL
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Gao Y, Yu S, Zhou P, Ren X, Wang Z, Zheng Z, Wang P, Cheng H, Liu Y, Wei W, Dai Y, Huang B. Promoting Electrocatalytic Reduction of CO 2 to C 2 H 4 Production by Inhibiting C 2 H 5 OH Desorption from Cu 2 O/C Composite. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105212. [PMID: 34918468 DOI: 10.1002/smll.202105212] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/24/2021] [Indexed: 06/14/2023]
Abstract
The electrochemical CO2 reduction reaction (CO2 RR) has great potential in realizing carbon recycling while storing sustainable electricity as hydrocarbon fuels. However, it is still a challenge to enhance the selectivity of the CO2 RR to single multi-carbon (C2+ ) product, such as C2 H4 . Here, an effective method is proposed to improve C2 H4 selectivity by inhibiting the production of the other competitive C2 products, namely C2 H5 OH, from Cu2 O/C composite. Density functional theory indicates that the heterogeneous structure between Cu2 O and carbon is expected to inhibit C2 H5 OH production and promote CC coupling, which facilitates C2 H4 production. To prove this, a composite electrode containing octahedral Cu2 O nanoparticles (NPs) (o-Cu2 O) with {111} facets and carbon NPs is constructed, which experimentally inhibits C2 H5 OH production while strongly enhancing C2 H4 selectivity compared with o-Cu2 O electrode. Furthermore, the surface hydroxylation of carbon can further improve the C2 H4 production of o-Cu2 O/C electrode, exhibiting a high C2 H4 Faradaic efficiency of 67% and a high C2 H4 current density of 45 mA cm-2 at -1.1 V in a near-neutral electrolyte. This work provides a new idea to improve C2+ selectivity by controlling products desorption.
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Affiliation(s)
- Yugang Gao
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Shiqiang Yu
- School of Physics, Shandong University, Jinan, 250100, China
| | - Peng Zhou
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Xixi Ren
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Peng Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Hefeng Cheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Wei Wei
- School of Physics, Shandong University, Jinan, 250100, China
| | - Ying Dai
- School of Physics, Shandong University, Jinan, 250100, China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
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CuZnAl-Oxide Nanopyramidal Mesoporous Materials for the Electrocatalytic CO 2 Reduction to Syngas: Tuning of H 2/CO Ratio. NANOMATERIALS 2021; 11:nano11113052. [PMID: 34835816 PMCID: PMC8618478 DOI: 10.3390/nano11113052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/30/2021] [Accepted: 11/06/2021] [Indexed: 11/17/2022]
Abstract
Inspired by the knowledge of the thermocatalytic CO2 reduction process, novel nanocrystalline CuZnAl-oxide based catalysts with pyramidal mesoporous structures are here proposed for the CO2 electrochemical reduction under ambient conditions. The XPS analyses revealed that the co-presence of ZnO and Al2O3 into the Cu-based catalyst stabilize the CuO crystalline structure and introduce basic sites on the ternary as-synthesized catalyst. In contrast, the as-prepared CuZn- and Cu-based materials contain a higher amount of superficial Cu0 and Cu1+ species. The CuZnAl-catalyst exhibited enhanced catalytic performance for the CO and H2 production, reaching a Faradaic efficiency (FE) towards syngas of almost 95% at −0.89 V vs. RHE and a remarkable current density of up to 90 mA cm−2 for the CO2 reduction at −2.4 V vs. RHE. The physico-chemical characterizations confirmed that the pyramidal mesoporous structure of this material, which is constituted by a high pore volume and small CuO crystals, plays a fundamental role in its low diffusional mass-transfer resistance. The CO-productivity on the CuZnAl-catalyst increased at more negative applied potentials, leading to the production of syngas with a tunable H2/CO ratio (from 2 to 7), depending on the applied potential. These results pave the way to substitute state-of-the-art noble metals (e.g., Ag, Au) with this abundant and cost-effective catalyst to produce syngas. Moreover, the post-reaction analyses demonstrated the stabilization of Cu2O species, avoiding its complete reduction to Cu0 under the CO2 electroreduction conditions.
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Su Q, Wang W, Zhang Z, Duan J. Enhanced photocatalytic performance of Cu 2O/MoS 2/ZnO composites on Cu mesh substrate for nitrogen reduction. NANOTECHNOLOGY 2021; 32:285706. [PMID: 33784642 DOI: 10.1088/1361-6528/abf378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
Cu2O nanoparticles and MoS2nanoflowers decorated with ZnO nanospheres were successfully co-deposited on Cu mesh via a mild electrodeposition method to build a dual direct Z-scheme heterostructure. The prepared materials can effectively synthesize ammonia with N2and H2O in the liquid membrane reactor under simulated visible light. The results indicate that 3D nanomaterials exhibit better performance compared to a pure semiconductor due to the synergistic effect of enhanced visible light absorption, longer photogenerated carrier lifetime and the specific charge transfer path of dual direct Z-scheme structure. Meanwhile, the hydrophilicity of Cu2O/MoS2/ZnO rapidly makes the surface of the catalyst wet when it participates in the photo reaction, which promotes the contact between the reactant and exciton. This work proposes the electron transfer and possible reaction mechanism corresponding to the designed catalyst, which can provide a reference for other photocatalytic applications using a semiconductor heterojunction as a catalyst.
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Affiliation(s)
- Qian Su
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Weiwen Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Zisheng Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
- Department of Chemical and Biological Engineering, University of Ottawa, Ontario, KIN 6N5, Canada
| | - Jihai Duan
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
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From CO2 to Value-Added Products: A Review about Carbon-Based Materials for Electro-Chemical CO2 Conversion. Catalysts 2021. [DOI: 10.3390/catal11030351] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The global warming and the dangerous climate change arising from the massive emission of CO2 from the burning of fossil fuels have motivated the search for alternative clean and sustainable energy sources. However, the industrial development and population necessities make the decoupling of economic growth from fossil fuels unimaginable and, consequently, the capture and conversion of CO2 to fuels seems to be, nowadays, one of the most promising and attractive solutions in a world with high energy demand. In this respect, the electrochemical CO2 conversion using renewable electricity provides a promising solution. However, faradaic efficiency of common electro-catalysts is low, and therefore, the design of highly selective, energy-efficient, and cost-effective electrocatalysts is critical. Carbon-based materials present some advantages such as relatively low cost and renewability, excellent electrical conductivity, and tunable textural and chemical surface, which show them as competitive materials for the electro-reduction of CO2. In this review, an overview of the recent progress of carbon-based electro-catalysts in the conversion of CO2 to valuable products is presented, focusing on the role of the different carbon properties, which provides a useful understanding for the materials design progress in this field. Development opportunities and challenges in the field are also summarized.
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Li L, Shao Q, Huang X. Amorphous Oxide Nanostructures for Advanced Electrocatalysis. Chemistry 2019; 26:3943-3960. [PMID: 31483074 DOI: 10.1002/chem.201903206] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 09/03/2019] [Indexed: 12/21/2022]
Abstract
Amorphous oxides have attracted special attention as advanced electrocatalysts owing to their unique local structural flexibility and attractive electrocatalytic properties. With abundant randomly oriented bonds and surface-exposed defects (e.g., oxygen vacancies) as active catalytic sites, the adsorption/desorption of reactants can be optimized, leading to superior catalytic activities. Amorphous oxide materials have found wide electrocatalytic applications ranging from hydrogen evolution and oxygen evolution to oxygen reduction, CO2 electroreduction and nitrogen electroreduction. The amorphous oxide electrocatalysts even outperform their crystalline counterparts in terms of electrocatalytic activity and stability. Despite of the merits and achievements for amorphous oxide electrocatalysts, there are still issues and challenges existing for amorphous oxide electrocatalysts. There are rarely reviews specifically focusing on amorphous oxide electrocatalysts and therefore it is imperative to have a comprehensive overview of the research progress and to better understand the achievements and issues with amorphous oxide electrocatalysts. In this minireview, several general preparation methods for amorphous oxides are first introduced. Then, the achievements in amorphous oxides for several important electrocatalytic reactions are summarized. Finally, the challenges and perspectives for the development of amorphous oxide electrocatalysts are outlined.
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Affiliation(s)
- Leigang Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, No.199, Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China.,College of Chemistry, Chemical Engineering and Materials Science Soochow University, No.199, Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science Soochow University, No.199, Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
| | - Xiaoqing Huang
- College of Chemistry, Chemical Engineering and Materials Science Soochow University, No.199, Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China
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Jiwanti PK, Einaga Y. Electrochemical reduction of CO 2 using palladium modified boron-doped diamond electrodes: enhancing the production of CO. Phys Chem Chem Phys 2019; 21:15297-15301. [PMID: 30989157 DOI: 10.1039/c9cp01409h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In recent years, boron-doped diamond (BDD) has been utilized as an electrode for the electrochemical reduction of CO2, and several reports have been published on this. The wide potential window of BDD enables the hydrogen evolution reaction, which competes with CO2 reduction, to be suppressed. On the other hand, the high overpotential is still a problem. We attempted to overcome this problem by depositing metal on the BDD electrode. Pd metal was chosen to modify the surface of the BDD electrode (PdBDD). Employing this electrode at a lower potential of -1.6 V vs. Ag/AgCl, we increased the production of CO (53.3% faradaic efficiency) from the reduction of CO2. We present various attempts made to improve the CO production.
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Affiliation(s)
| | - Yasuaki Einaga
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan. and ACCEL, Japan Science and Technology Agency, 5-3 Yonbancho, Chiyoda 102-8666, Japan
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Mînzatu V, Davidescu CM, Negrea P, Ciopec M, Muntean C, Hulka I, Paul C, Negrea A, Duțeanu N. Synthesis, Characterization and Adsorptive Performances of a Composite Material Based on Carbon and Iron Oxide Particles. Int J Mol Sci 2019; 20:E1609. [PMID: 30935127 PMCID: PMC6479688 DOI: 10.3390/ijms20071609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 11/20/2022] Open
Abstract
The aim of this paper was to produce a new composite material based on carbon and iron oxides, starting from soluble starch and ferric chloride. The composite material was synthesized by simple thermal decomposition of a reaction mass obtained from starch and iron chloride, in an inert atmosphere. Starch used as a carbon source also efficiently stabilizes the iron oxides particles obtained during the thermal decomposition. The reaction mass used for the thermal decomposition was obtained by simultaneously mixing the carbon and iron oxide precursors, without addition of any precipitation agent. The proper composite material can be obtained by rigorously adhering to the stirring time, temperature, and water quantity used during the preparation of the reaction mass, as well as the thermal regime and the controlled atmosphere used during the thermal decomposition. Synthesized materials were characterized using thermogravimetric analysis, X-Ray Diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infra-red spectroscopy (FT-IR). The performances of the obtained material were highlighted by studying their adsorbent properties and by determining the maximum adsorption capacity for arsenic removal from aqueous solutions.
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Affiliation(s)
- Vasile Mînzatu
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
| | - Corneliu-Mircea Davidescu
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
| | - Petru Negrea
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
| | - Mihaela Ciopec
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
| | - Cornelia Muntean
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
| | - Iosif Hulka
- Engineering, Research Institute for Renewable Energy, Politehnica University of Timisoara, Timisoara 300006, Romania.
| | - Cristina Paul
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
| | - Adina Negrea
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
| | - Narcis Duțeanu
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental, Victoria Square, no. 2, Timisoara 300006, Romania.
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Electrochemical Carbon Dioxide Reduction in Methanol at Cu and Cu2O-Deposited Carbon Black Electrodes. CHEMENGINEERING 2019. [DOI: 10.3390/chemengineering3010015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The electrochemical reduction of carbon dioxide in methanol was investigated with Cu and Cu2O-supported carbon black (Vulcan XC-72) nanoparticle electrodes. Herein, Cu or a Cu2O-deposited carbon black catalyst has been synthesized by the reduction method for a Cu ion, and the drop-casting method was applied for the fabrication of a modified carbon black electrode. A catalyst ink solution was fabricated by dispersing the catalyst particles, and the catalyst ink was added onto the carbon plate. The pH of suspension was effective for controlling the Cu species for the metallic copper and the Cu2O species deposited on the carbon black. Without the deposition of Cu, only CO and methyl formate were produced in the electrochemical CO2 reduction, and the production of hydrocarbons could be scarcely observed. In contrast, hydrocarbons were formed by using Cu or Cu2O-deposited carbon black electrodes. The maximum Faraday efficiency of hydrocarbons was 40.3% (26.9% of methane and 13.4% of ethylene) at −1.9 V on the Cu2O-deposited carbon black catalyst. On the contrary, hydrogen evolution could be depressed to 34.7% under the condition.
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Fe-Based Nano-Materials in Catalysis. MATERIALS 2018; 11:ma11050831. [PMID: 29772842 PMCID: PMC5978208 DOI: 10.3390/ma11050831] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/04/2018] [Accepted: 05/10/2018] [Indexed: 01/29/2023]
Abstract
The role of iron in view of its further utilization in chemical processes is presented, based on current knowledge of its properties. The addition of iron to a catalyst provides redox functionality, enhancing its resistance to carbon deposition. FeOx species can be formed in the presence of an oxidizing agent, such as CO2, H2O or O2, during reaction, which can further react via a redox mechanism with the carbon deposits. This can be exploited in the synthesis of active and stable catalysts for several processes, such as syngas and chemicals production, catalytic oxidation in exhaust converters, etc. Iron is considered an important promoter or co-catalyst, due to its high availability and low toxicity that can enhance the overall catalytic performance. However, its operation is more subtle and diverse than first sight reveals. Hence, iron and its oxides start to become a hot topic for more scientists and their findings are most promising. The scope of this article is to provide a review on iron/iron-oxide containing catalytic systems, including experimental and theoretical evidence, highlighting their properties mainly in view of syngas production, chemical looping, methane decomposition for carbon nanotubes production and propane dehydrogenation, over the last decade. The main focus goes to Fe-containing nano-alloys and specifically to the Fe–Ni nano-alloy, which is a very versatile material.
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Şahin NE, Comminges C, Le Valant A, Kiener J, Parmentier J, Napporn TW, Melinte G, Ersen O, Kokoh KB. One-Pot Soft-Template Synthesis of Nanostructured Copper-Supported Mesoporous Carbon FDU-15 Electrocatalysts for Efficient CO2
Reduction. Chemphyschem 2018. [DOI: 10.1002/cphc.201701352] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nihat Ege Şahin
- Université de Poitiers; Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP-UMR-CNRS 7285); 4 rue Michel Brunet, B27, TSA 51106 86073 Poitiers cedex 09 France
| | - Clément Comminges
- Université de Poitiers; Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP-UMR-CNRS 7285); 4 rue Michel Brunet, B27, TSA 51106 86073 Poitiers cedex 09 France
| | - Anthony Le Valant
- Université de Poitiers; Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP-UMR-CNRS 7285); 4 rue Michel Brunet, B27, TSA 51106 86073 Poitiers cedex 09 France
| | - Julien Kiener
- Université de Haute-Alsace; Institut de Science des Matériaux de Mulhouse, CNRS UMR 7361; 15 rue Jean Starcky - BP 2488-68057 cedex Mulhouse France
| | - Julien Parmentier
- Université de Haute-Alsace; Institut de Science des Matériaux de Mulhouse, CNRS UMR 7361; 15 rue Jean Starcky - BP 2488-68057 cedex Mulhouse France
| | - Teko W. Napporn
- Université de Poitiers; Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP-UMR-CNRS 7285); 4 rue Michel Brunet, B27, TSA 51106 86073 Poitiers cedex 09 France
| | - Georgian Melinte
- Université de Strasbourg; Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS; 23 rue du Lœss 67037 cedex 2 Strasbourg France
| | - Ovidiu Ersen
- Université de Strasbourg; Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS; 23 rue du Lœss 67037 cedex 2 Strasbourg France
| | - Kouakou B. Kokoh
- Université de Poitiers; Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP-UMR-CNRS 7285); 4 rue Michel Brunet, B27, TSA 51106 86073 Poitiers cedex 09 France
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13
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Pérez-Rodríguez S, Sebastián D, Lázaro M, Pastor E. Stability and catalytic properties of nanostructured carbons in electrochemical environments. J Catal 2017. [DOI: 10.1016/j.jcat.2017.09.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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