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Lin YC, Rinawati M, Huang WH, Aulia S, Chang LY, Guo YT, Chen KJ, Chiang WH, Haw SC, Yeh MH. Favoring the Selective H 2O 2 Generation of a Self-Antibiofouling Dissolved Oxygen Sensor for Real-Time Online Monitoring via Surface-Engineered N-Doped Reduced Graphene Oxide. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42520-42531. [PMID: 37655434 DOI: 10.1021/acsami.3c07261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Dissolved oxygen (DO) is a key parameter in assessing water quality, particularly in aquatic ecosystems. The oxygen reduction reaction (ORR) has notable prevalence in energy conversion and biological processes, including biosensing. Nevertheless, the long-term usage of the submersible DO sensors leads to undesirable biofilm formation on the electrode surface, deteriorating their sensitivity and stability. Recently, the reactive oxygen species (ROS), such as the two-electron pathway ORR byproduct, H2O2, had been known for its biofilm-degradation activity. Herein, for the first time, we reported N-doped reduced graphene oxide (N-rGO) for H2O2 selectivity as the self-antibiofouling DO sensor. Introducing foreign atom doping could reorient the electron network of graphene by the electronegativity gap, which facilitated highly selective and efficient two electron pathway of ORR. Mitigating the N content of N-rGO had enhanced the H2O2 selectivity (57.5%) and electron transfer number (n = 2.84) in neutral medium. Moreover, the N-rGO could be integrated to a wireless DO monitoring device that might realize an applicable device in the aquatic fish farming.
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Affiliation(s)
- Yu-Chi Lin
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Mia Rinawati
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Sofiannisa Aulia
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Ling-Yu Chang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Yi-Ting Guo
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | | | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Shu-Chih Haw
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Min-Hsin Yeh
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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Dual morphology ZnCo2O4 coupled graphitic carbon nitride: An efficient electro-catalyst for electrochemical H2O2 production and methanol oxidation reaction. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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3
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Rong Y, Huang S. Self-Templating Synthesis of N/P/Fe Co-Doped 3D Porous Carbon for Oxygen Reduction Reaction Electrocatalysts in Alkaline Media. NANOMATERIALS 2022; 12:nano12122106. [PMID: 35745446 PMCID: PMC9228732 DOI: 10.3390/nano12122106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/12/2022] [Accepted: 06/15/2022] [Indexed: 01/26/2023]
Abstract
The development of low-cost, highly active, and stable oxygen reduction reaction (ORR) catalysts is of great importance for practical applications in numerous energy conversion devices. Herein, iron/nitrogen/phosphorus co-doped carbon electrocatalysts (NPFe-C) with multistage porous structure were synthesized by the self-template method using melamine, phytic acid and ferric trichloride as precursors. In an alkaline system, the ORR half-wave potential is 0.867 V (vs. RHE), comparable to that of platinum-based catalysts. It is noteworthy that NPFe-C performs better than the commercial Pt/C catalyst in terms of power density and specific capacity. Its unique structure and the feature of heteroatom doping endow the catalyst with higher mass transfer ability and abundant available active sites, and the improved performance can be attributed to the following aspects: (1) Fe-, N-, and P triple doping created abundant active sites, contributing to the higher intrinsic activity of catalysts. (2) Phytic acid was crosslinked with melamine to form hydrogel, and its carbonized products have high specific surface area, which is beneficial for a large number of active sites to be exposed at the reaction interface. (3) The porous three-dimensional carbon network facilitates the transfer of reactants/intermediates/products and electric charge. Therefore, Fe/N/P Co-doped 3D porous carbon materials prepared by a facile and scalable pyrolysis route exhibit potential in the field of energy conversion/storage.
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Affiliation(s)
- Yan Rong
- College of Resources & Environment and Historical Culture, Xianyang Normal University, 43 Wenlin Road, Weicheng District, Xianyang 712000, China
- Correspondence:
| | - Siping Huang
- College of Chemistry and Chemical Engineering, Xianyang Normal University, 43 Wenlin Road, Weicheng District, Xianyang 712000, China;
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Xu Z, Ma Z, Dong K, Liang J, Zhang L, Luo Y, Liu Q, You J, Feng Z, Ma D, Wang Y, Sun X. Electrocatalytic two-electron oxygen reduction over nitrogen doped hollow carbon nanospheres. Chem Commun (Camb) 2022; 58:5025-5028. [PMID: 35373790 DOI: 10.1039/d2cc01238c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The two-electron oxygen reduction reaction (2e- ORR) has become a hopeful alternative for production of hydrogen peroxide (H2O2), but its practical feasibility is hindered by the lack of efficient electrocatalysts to achieve high activity and selectivity. Herein, we successfully synthesized outstanding nitrogen doped hollow carbon nanospheres (NHCSs) for electrochemical production of H2O2. In 0.1 M KOH, NHCSs exhibit superior and sustained catalytic activity for the 2e- ORR with an unordinary selectivity of 96.6%. Impressively, such NHCSs manifest an ultrahigh H2O2 yield rate of 7.32 mol gcat.-1 h-1 and a high faradaic efficiency of 96.7% at 0.5 V in an H-cell system. Density functional theory calculations were performed to further reveal the catalytic mechanism involved.
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Affiliation(s)
- Zhaoquan Xu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China. .,School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
| | - Ziyu Ma
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng 475004, Henan, China.
| | - Kai Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
| | - Jie Liang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
| | - Longcheng Zhang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
| | - Yongsong Luo
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
| | - Qian Liu
- Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China
| | - Jinmao You
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing 312000, Zhejiang, China
| | - Zhesheng Feng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
| | - Dongwei Ma
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng 475004, Henan, China.
| | - Yan Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
| | - Xuping Sun
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China. .,College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing 312000, Zhejiang, China
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Audevard J, Benyounes A, Castro Contreras R, Abou Oualid H, Kacimi M, Serp P. Multifunctional Catalytic Properties of Pd/CNT Catalysts for 4‐Nitrophenol Reduction. ChemCatChem 2022. [DOI: 10.1002/cctc.202101783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jeremy Audevard
- JLCC-CNRS Université de Toulouse UPR 8241 CNRS, INPT 31030 Toulouse France
| | - Anas Benyounes
- JLCC-CNRS Université de Toulouse UPR 8241 CNRS, INPT 31030 Toulouse France
| | | | | | - Mohamed Kacimi
- Laboratory of Physical Chemistry of Materials Catalysis and Environment (URAC26) Department of Chemistry Faculty of Science University of Mohammed V 10106 Rabat Morocco
| | - Philippe Serp
- JLCC-CNRS Université de Toulouse UPR 8241 CNRS, INPT 31030 Toulouse France
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Wang D, Feng B, Zhang X, Liu Y, Pei Y, Qiao M, Zong B. Nitrogen-doped Carbon Pyrolyzed from ZIF-8 for Electrocatalytic Oxygen Reduction to Hydrogen Peroxide. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang N, Ma S, Zuo P, Duan J, Hou B. Recent Progress of Electrochemical Production of Hydrogen Peroxide by Two-Electron Oxygen Reduction Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100076. [PMID: 34047062 PMCID: PMC8336511 DOI: 10.1002/advs.202100076] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/17/2021] [Indexed: 05/06/2023]
Abstract
Shifting electrochemical oxygen reduction reaction (ORR) via two-electron pathway becomes increasingly crucial as an alternative/green method for hydrogen peroxide (H2 O2 ) generation. Here, the development of 2e- ORR catalysts in recent years is reviewed, in aspects of reaction mechanism exploration, types of high-performance catalysts, factors to influence catalytic performance, and potential applications of 2e- ORR. Based on the previous theoretical and experimental studies, the underlying 2e- ORR catalytic mechanism is firstly unveiled, in aspect of reaction pathway, thermodynamic free energy diagram, limiting potential, and volcano plots. Then, various types of efficient catalysts for producing H2 O2 via 2e- ORR pathway are summarized. Additionally, the catalytic active sites and factors to influence catalysts' performance, such as electronic structure, carbon defect, functional groups (O, N, B, S, F etc.), synergistic effect, and others (pH, pore structure, steric hindrance effect, etc.) are discussed. The H2 O2 electrogeneration via 2e- ORR also has various potential applications in wastewater treatment, disinfection, organics degradation, and energy storage. Finally, potential future directions and prospects in 2e- ORR catalysts for electrochemically producing H2 O2 are examined. These insights may help develop highly active/selective 2e- ORR catalysts and shape the potential application of this electrochemical H2 O2 producing method.
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Affiliation(s)
- Nan Wang
- Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
- Center for Ocean Mega‐ScienceChinese Academy of Sciences7 Nanhai RoadQingdao266071China
- Open Studio for Marine Corrosion and ProtectionPilot National Laboratory for Marine Science and Technology (Qingdao)1 Wenhai RoadQingdao266237China
| | - Shaobo Ma
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin150001China
| | - Pengjian Zuo
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin150001China
| | - Jizhou Duan
- Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
- Center for Ocean Mega‐ScienceChinese Academy of Sciences7 Nanhai RoadQingdao266071China
- Open Studio for Marine Corrosion and ProtectionPilot National Laboratory for Marine Science and Technology (Qingdao)1 Wenhai RoadQingdao266237China
| | - Baorong Hou
- Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
- Center for Ocean Mega‐ScienceChinese Academy of Sciences7 Nanhai RoadQingdao266071China
- Open Studio for Marine Corrosion and ProtectionPilot National Laboratory for Marine Science and Technology (Qingdao)1 Wenhai RoadQingdao266237China
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Wei Z, Xu H, Lei Z, Yi X, Feng C, Dang Z. A binder-free electrode for efficient H2O2 formation and Fe2+ regeneration and its application to an electro-Fenton process for removing organics in iron-laden acid wastewater. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.07.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Zhao H, Yuan ZY. Design Strategies of Non-Noble Metal-Based Electrocatalysts for Two-Electron Oxygen Reduction to Hydrogen Peroxide. CHEMSUSCHEM 2021; 14:1616-1633. [PMID: 33587818 DOI: 10.1002/cssc.202100055] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/12/2021] [Indexed: 05/25/2023]
Abstract
Hydrogen peroxide (H2 O2 ) is a highly value-added and environmentally friendly chemical with various applications. The production of H2 O2 by electrocatalytic 2e- oxygen reduction reaction (ORR) has drawn considerable research attention, with a view to replacing the currently established anthraquinone process. Electrocatalysts with low cost, high activity, high selectivity, and superior stability are in high demand to realize precise control over electrochemical H2 O2 synthesis by 2e- ORR and the feasible commercialization of this system. This Review introduces a comprehensive overview of non-noble metal-based catalysts for electrochemical oxygen reduction to afford H2 O2 , providing an insight into catalyst design and corresponding reaction mechanisms. It starts with an in-depth discussion on the origins of 2e- /4e- selectivity towards ORR for catalysts. Recent advances in design strategies for non-noble metal-based catalysts, including carbon nanomaterials and transition metal-based materials, for electrochemical oxygen reduction to H2 O2 are then discussed, with an emphasis on the effects of electronic structure, nanostructure, and surface properties on catalytic performance. Finally, future challenges and opportunities are proposed for the further development of H2 O2 electrogeneration through 2e- ORR, from the standpoints of mechanistic studies and practical application.
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Affiliation(s)
- Hui Zhao
- School of Materials Science and Engineering, Liaocheng University, Liaocheng, Shandong, 252000, P. R. China
| | - Zhong-Yong Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
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10
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Nanocomposite Cathode Catalysts Containing Platinum Deposited on Carbon Nanotubes Modified by O, N, and P Atoms. Catalysts 2021. [DOI: 10.3390/catal11030335] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Platinum deposited on dispersed materials has so far been the most demanded catalyst for creating cathodes for a wide range of electrochemical power sources. This paper sets out to investigate the effect of carbon nanotube (CNT) modification by O, N, and P atoms on the structural, electrocatalytic, and corrosion properties of the as-synthesized monoplatinum catalysts. The investigated Pt/CNTmod catalysts showed an increased electrochemically active platinum surface area and electrical conductivity, as well as an increased catalytic activity in the oxygen reduction reaction (ORR) in alkaline electrolytes. The improved characteristics of Pt/CNT catalysts are explained by alterations in the composition and number of groups, which are formed on the CNT surface, and their electronic structure. By the sum of the main characteristics, Pt/CNTHNO3+N and Pt/CNTHNO3+NP are the most promising catalysts for use as cathode materials in alkaline media.
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Ren Y, Yan Y, Wang Y, Zhang H, Li X. Thermally treated candle soot as a novel catalyst for hydrogen peroxide in-situ production enhancement in the bio-electro-Fenton system. CHEMOSPHERE 2021; 262:127839. [PMID: 32799145 DOI: 10.1016/j.chemosphere.2020.127839] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/21/2020] [Accepted: 07/26/2020] [Indexed: 06/11/2023]
Abstract
Thermally treated candle soot (TCS) was used as a two-electron (2e¯) oxygen reduction reaction (ORR) catalyst to in situ produce H2O2 in a bio-electro-Fenton (BEF) system. Compared with the pristine candle soot (CS), TCS showed larger Brunauer-Emmett-Teller (BET) surface area (102.54 m2 g-1 vs. 61.79 m2 g-1), higher mesoporous ratio (50.39% vs. 34.98%), and improved hydrophilicity. X-ray photoelectron spectra (XPS) results revealed that the C-O-C was the dominant oxygen-containing group of the CS, and its percentage reached at 80.55%. However, the C-O-C ratio of the TCS decreased to 48.93%, whilst it's CO and OC-O ratios significantly increased to 27.92% and 23.15%. The TCS showed a high H2O2 selectivity (87.5%∼97.0%) at the neutral pH condition, which was much higher than that of the commonly used carbon black (CB) catalyst. Finally, the H2O2 concentration maxima (Cmax-H2O2) of the bio-electro-Fenton system running with the TCS air-cathode (BEF-TCS) achieved at 32.02 mg/L, which was 6.29 times higher than that of the BEF-CB (5.09 mg/L). The removal and mineralization ratios of the SMX in the BEF-TCS reached at 83.0% and 79.0%, respectively. This paper reported a novel 2e¯ ORR electro-catalyst which was low-cost, easily available and highly efficiency.
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Affiliation(s)
- Yueping Ren
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, Jiangsu, China; State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, Jiangsu, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, China.
| | - Yating Yan
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, Jiangsu, China
| | - Yue Wang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, Jiangsu, China
| | - Huayu Zhang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, Jiangsu, China
| | - Xiufen Li
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, Jiangsu, China; Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment, Suzhou, China.
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Gowri VM, John SA. Fabrication of electrically conducting graphitic carbon nitride film on glassy carbon electrode with the aid of amine groups for the determination of an organic pollutant. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114787] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Bulyarskiy VS, Abdurakhmonov SD, Gorelik VS. Raman Scattering of Carbon Nanotubes Implanted with Nitrogen. CRYSTALLOGR REP+ 2020. [DOI: 10.1134/s1063774520060115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sideri IK, Tagmatarchis N. Noble-Metal-Free Doped Carbon Nanomaterial Electrocatalysts. Chemistry 2020; 26:15397-15415. [PMID: 32931046 DOI: 10.1002/chem.202003613] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Indexed: 11/08/2022]
Abstract
Electrocatalytic processes, such as oxygen reduction reaction (ORR), oxygen evolution reaction (OER), hydrogen evolution reaction (HER) and carbon dioxide reduction reaction (CO2 RR), play key roles in various sustainable energy storage and production devices and their optimization in an ecological manner is of paramount importance for mankind. In this inclusive Review, we aspire to set the scene on doped carbon-based nanomaterials and their hybrids as precious-metal alternative electrocatalysts for these critical reactions in order for the research community not only to stay up-to-date, but also to get inspired and keep pushing forward towards their practical application in energy conversion.
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Affiliation(s)
- Ioanna K Sideri
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635, Athens, Greece
| | - Nikos Tagmatarchis
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635, Athens, Greece
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Vitamin Derived Nitrogen Doped Carbon Nanotubes for Efficient Oxygen Reduction Reaction and Arsenic Removal from Contaminated Water. MATERIALS 2020; 13:ma13071686. [PMID: 32260368 PMCID: PMC7178648 DOI: 10.3390/ma13071686] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 01/22/2023]
Abstract
Nitrogen doped carbon nanotubes (NCNT) that were prepared by simple microwave pyrolysis of Niacin (Vitamin B3) as noble metal free electrocatalyst for oxygen reduction reaction (ORR) is reported. Our newly developed technique has the distinct features of sustainable and widely available niacin as a bi-functional source of both carbon and nitrogen, whereas the iron catalyst is cheap and the fourth most common element in the Earth’s crust. The results of the electrochemical tests show that our newly developed iron impregnated NCNT anchored on reduced graphene substrate (Fe@NCNT-rGO) catalyst exhibit: a positive half-wave potential (E1/2) of 0.75 V vs. RHE (reversible hydrogen electrode), four-electron pathway, and better methanol tolerance when compared to commercial 20% Pt/C. When applied as adsorbent for arsenic removal, our newly discovered NCNT-Fe illustrate the efficient and effective removal of arsenic across a wide range of pH values.
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Jeon I, Noh H, Baek J. Nitrogen‐Doped Carbon Nanomaterials: Synthesis, Characteristics and Applications. Chem Asian J 2019; 15:2282-2293. [DOI: 10.1002/asia.201901318] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/11/2019] [Indexed: 01/24/2023]
Affiliation(s)
- In‐Yup Jeon
- Department of Chemical EngineeringWonkwang University 460 Iksandae-ro, Iksan Jeonbuk 54538 Republic of Korea
- Graphene Edge Co. Ltd. 460 Iksandae-ro, Iksan Jeonbuk 54538 Republic of Korea
| | - Hyuk‐Jun Noh
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic FrameworksUlsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 Republic of Korea
| | - Jong‐Beom Baek
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic FrameworksUlsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 Republic of Korea
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Hollow dual core-shell nanocomposite of nitrogen-doped Carbon@Bi12SiO20@Nitrogen-doped graphene as high efficiency catalyst for fuel cell. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134824] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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