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Hu T, Zhao Y, Yang Y, Lv H, Zhong R, Ding F, Mo F, Hu H, Zhi C, Liang G. Development of Inverse-Opal-Structured Charge-Deficient Co 9S 8@nitrogen-Doped-Carbon to Catalytically Enable High Energy and High Power for the Two-Electron Transfer I +/I - Electrode. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312246. [PMID: 38266255 DOI: 10.1002/adma.202312246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/21/2023] [Indexed: 01/26/2024]
Abstract
The iodine (I) electrode involving two-electron transfer chemistry by converting between I+ and I-, has the potential to deliver theoretically doubled capacity and higher working voltage platforms, thus achieving higher energy density. However, owing to the slow kinetics of the cascade two-electron transfer reactions, the system suffers from large overpotentials and low power density, especially at high working currents and low temperatures. Here, an inverse-opal-structured cobalt sulfide@nitrogen-doped-carbon (Co9S8@NC) catalyst with unique charge-deficient states is developed to promote the reaction kinetics of the I-/I+ electrode. The charge-deficient Co9S8@NC catalyst not only enables strong physicochemical adsorption with the iodine species but also significantly reduces the activation energy and interfacial charge transfer resistance of the cascade I+/I0/I- conversion reaction. Consequently, the prototypical Zn‖I+/I0/I- battery equipped with the Co9S8@NC catalyst can deliver a high energy density of 554 Wh kg-1 and a stable cycle life of 5000 cycles at 30 °C. Moreover, at a subzero temperature of -30 °C, the battery can exhibit enhanced kinetics and a high power density of 1514 W kg-1, high energy density of 485 Wh kg-1.
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Affiliation(s)
- Tao Hu
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, China
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, Guangdong, 518055, China
| | - Yuanyuan Zhao
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, Guangdong, 518055, China
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian, 116024, China
| | - Yihan Yang
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Haiming Lv
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Rong Zhong
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, 999077, China
| | - Feng Ding
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, Guangdong, 518055, China
| | - Funian Mo
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Haibo Hu
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, China
| | - Chunyi Zhi
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, 999077, China
| | - Guojin Liang
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, Guangdong, 518055, China
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Kharabe GP, Barik S, Veeranmaril SK, Nair A, Illathvalappil R, Yoyakki A, Joshi K, Vinod CP, Kurungot S. Aluminium, Nitrogen-Dual-Doped Reduced Graphene Oxide Co-Existing with Cobalt-Encapsulated Graphitic Carbon Nanotube as an Activity Modulated Electrocatalyst for Oxygen Electrocatalyst for Oxygen Electrochemistry Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400012. [PMID: 38651508 DOI: 10.1002/smll.202400012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/05/2024] [Indexed: 04/25/2024]
Abstract
There is a rising need to create high-performing, affordable electrocatalysts in the new field of oxygen electrochemistry. Here, a cost-effective, activity-modulated electrocatalyst with the capacity to trigger both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) in an alkaline environment is presented. The catalyst (Al, Co/N-rGCNT) is made up of aluminium, nitrogen-dual-doped reduced graphene oxide sheets co-existing with cobalt-encapsulated carbon nanotube units. Based on X-ray Absorption Spectroscopy (XAS) studies, it is established that the superior reaction kinetics in Al, Co/N-rGCNT over their bulk counterparts can be attributed to their electronic regulation. The Al, Co/N-rGCNT performs as a versatile bifunctional electrocatalyst for zinc-air battery (ZAB), delivering an open circuit potential ≈1.35 V and peak power density of 106.3 mW cm-2, which are comparable to the system based on Pt/C. The Al, Co/N-rGCNT-based system showed a specific capacity of 737 mAh gZn -1 compared to 696 mAh gZn -1 delivered by the system based on Pt/C. The DFT calculations indicate that the adsorption of Co in the presence of Al doping in NGr improves the electronic properties favoring ORR. Thus, the Al, Co/N-rGCNT-based rechargeable ZAB (RZAB) emerges as a highly viable and affordable option for the development of RZAB for practical applications.
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Affiliation(s)
- Geeta Pandurang Kharabe
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sidharth Barik
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sudheesh Kumar Veeranmaril
- Physical Sciences and Engineering Division (PSE), KAUST Catalysis Centre (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Aathira Nair
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Rajith Illathvalappil
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Athira Yoyakki
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Kavita Joshi
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Chathakudath Prabhakaran Vinod
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Catalysis and Inorganic Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
| | - Sreekumar Kurungot
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Gao W, Gao Y, Liu B, Kang J, Zhang Z, Zhang M, Zou Y. Nitrogen-doped carbon material NCM- T heterogeneously catalyzed liquid-phase hydrogenation of nitrobenzene to aniline. RSC Adv 2024; 14:5055-5060. [PMID: 38332788 PMCID: PMC10849082 DOI: 10.1039/d4ra00078a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024] Open
Abstract
As an important chemical intermediate, aniline is primarily produced industrially through catalytic hydrogenation of nitrobenzene. Herein, a series of nitrogen-doped carbon materials (referred to as NCM-T, with T denoting the roasting temperature (°C)) were prepared through high-temperature roasting of sucrose and melamine for the heterogeneous catalytic liquid-phase hydrogenation of nitrobenzene to aniline. A preliminary study of the involved reaction mechanism was performed by combining the results of material characterisation and catalyst evaluation. Experimental results showed that the graphitic N content and the defective sites simultaneously affected the performance of NCM-T in catalysing the hydrazine hydrate reduction in the nitrobenzene hydrogenation reaction. The catalyst NCM-800 was reacted in an ethanol solution with hydrazine hydrate as the reducing agent at 80 °C for 5 h. Notably, the nitrobenzene conversion rate was up to 94%, and the aniline selectivity was 100%. The turnover frequency (TOF) could reach up to 7.9 mol g-1 h-1, and after five recycling cycles, only a small loss of catalytic activity was observed. This shows that the prepared catalyst is a recyclable catalyst that can be used for reducing the nitrobenzene from hydrazine hydrate to aniline.
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Affiliation(s)
- Wenxiu Gao
- College of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology Jilin 132000 China
| | - Yongping Gao
- College of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology Jilin 132000 China
| | - Bai Liu
- College of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology Jilin 132000 China
| | - Jianing Kang
- College of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology Jilin 132000 China
| | - Zhihui Zhang
- College of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology Jilin 132000 China
| | - Min Zhang
- College of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology Jilin 132000 China
| | - Yongcun Zou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun 130012 China
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Feng X, Chen G, Cui Z, Qin R, Jiao W, Huang Z, Shang Z, Ma C, Zheng X, Han Y, Huang W. Engineering Electronic Structure of Nitrogen-Carbon Sites by sp 3 -Hybridized Carbon and Incorporating Chlorine to Boost Oxygen Reduction Activity. Angew Chem Int Ed Engl 2024; 63:e202316314. [PMID: 38032121 DOI: 10.1002/anie.202316314] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Indexed: 12/01/2023]
Abstract
Development of efficient and easy-to-prepare low-cost oxygen reaction electrocatalysts is essential for widespread application of rechargeable Zn-air batteries (ZABs). Herein, we mixed NaCl and ZIF-8 by simple physical milling and pyrolysis to obtain a metal-free porous electrocatalyst doped with Cl (mf-pClNC). The mf-pClNC electrocatalyst exhibits a good oxygen reduction reaction (ORR) activity (E1/2 =0.91 V vs. RHE) and high stability in alkaline electrolyte, exceeding most of the reported transition metal carbon-based electrocatalysts and being comparable to commercial Pt/C electrocatalysts. Likewise, the mf-pClNC electrocatalyst also shows state-of-the-art ORR activity and stability in acidic electrolyte. From experimental and theoretical calculations, the better ORR activity is most likely originated from the fact that the introduced Cl promotes the increase of sp3 -hybridized carbon, while the sp3 -hybridized carbon and Cl together modify the electronic structure of the N-adjacent carbons, as the active sites, while NaCl molten-salt etching provides abundant paths for the transport of electrons/protons. Furthermore, the liquid rechargeable ZAB using the mf-pClNC electrocatalyst as the cathode shows a fulfilling performance with a peak power density of 276.88 mW cm-2 . Flexible quasi-solid-state rechargeable ZAB constructed with the mf-pClNC electrocatalyst as the cathode exhibits an exciting performance both at low, high and room temperatures.
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Affiliation(s)
- Xueting Feng
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Guanzhen Chen
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Zhibo Cui
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Rong Qin
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wensheng Jiao
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Zeyi Huang
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Ziang Shang
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Chao Ma
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Yunhu Han
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wei Huang
- Institute of Flexible Electronics (IFE), Ningbo Institute, and Frontiers Science Center for Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
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5
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Lu X, Li Y, Dong D, Wan Y, Li R, Xiao L, Wang D, Liu L, Wang G, Zhang J, An M, Yang P. Coexisting Fe single atoms and nanoparticles on hierarchically porous carbon for high-efficiency oxygen reduction reaction and Zn-air batteries. J Colloid Interface Sci 2024; 653:654-663. [PMID: 37741173 DOI: 10.1016/j.jcis.2023.09.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/21/2023] [Accepted: 09/08/2023] [Indexed: 09/25/2023]
Abstract
Fe single-atom catalysts still suffer from unsatisfactory intrinsic activity and durability for oxygen reduction reaction (ORR). Herein, the coexisting Fe single atoms and nanoparticles on hierarchically porous carbon (denoted as Fe-FeN-C) are prepared via a Zn5(OH)6(CO3)2-assisted pyrolysis strategy. Theoretical calculation reveals that the Fe nanoparticles can optimize the electronic structures and d-band center of Fe active center, hence reducing the reaction energy barrier for enhancing intrinsic activity. The Zn5(OH)6(CO3)2 self-sacrificial template not only can promote the formation of Fe single atoms, but also contributes to the construction of microporous/mesoporous/macroporous structures. Therefore, the obtained Fe-FeN-C exhibits impressive ORR activity with a half-wave potential of 0.921 V, which far exceeds Pt/C. With Fe-FeN-C as the cathode catalyst, the assembled Zn-air batteries delivered a maximum power density of 206 mW cm-2 and a long-cycle life over 400 h.
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Affiliation(s)
- Xiangyu Lu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yaqiang Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Derui Dong
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yongbiao Wan
- Microsystem & Terahertz Research Center, Institute of Electronic Engineering, China Academy of Engineering Physics, Chengdu 610200, China
| | - Ruopeng Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Lihui Xiao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Dan Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China.
| | - Lilai Liu
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China
| | - Guangzhao Wang
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing, School of Electronic Information Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Jinqiu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Maozhong An
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Peixia Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
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6
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Chen S, Xia M, Zhang X, Pei L, Li Z, Ge X, Lin MJ, Zhang W, Xie Z. Guanosine-derived atomically dispersed Cu-N 3-C sites for efficient electroreduction of carbon dioxide. J Colloid Interface Sci 2023; 646:863-871. [PMID: 37235932 DOI: 10.1016/j.jcis.2023.05.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/21/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023]
Abstract
Single-atom copper (Cu) embedded within carbon catalysts have demonstrated significant potential in the electrochemical reduction of carbon dioxide (CO2) into valuable chemicals and fuels. Herein, we develop a straightforward and template-free strategy for synthesizing atomically dispersed CuNC catalysts (CuG) by annealing the self-assembled guanosine. The CuG catalysts display two-dimensional morphology, tunable pore size and large surface areas that can be adjusted by changing carbonization temperature. Spherical aberration-corrected transmission electron microscopy reveals that single-atom Cu are homogeneously dispersed on the surface of carbon nanosheets. The optimum CuG-1000 catalysts achieve a high CO Faradaic efficiency (FEco) up to 99% and a high CO current density of 6.53 mA cm-2 (-0.65 V vs. RHE). Besides, the flow cell test of CuG-1000 shows a high current density up to 25.2 mA cm-2 and the FEco still exceeded 91% after more than 20 h of testing. Specifically, the existence of Cu-N3-C active sites was proved by extended X-ray absorption fine structure (EXAFS). Density functional theory evidences that tricoordinated copper with N can largely regulate the adsorption and desorption of key intermediates by transferring electrons to *COOH through Cu atoms, thereby improving selectivity toward CO. This work demonstrates the active origin of CuNC catalysts in CO2 electroreduction and offers a blueprint to construct atomically dispersed transition site catalysts by supramolecular self-assembly strategy.
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Affiliation(s)
- Shuo Chen
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials and Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350016, China
| | - Miao Xia
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials and Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350016, China
| | - Xuefei Zhang
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials and Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350016, China
| | - Lisun Pei
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials and Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350016, China
| | - Zijia Li
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials and Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350016, China
| | - Xin Ge
- Key Laboratory of Automobile Materials MOE, and School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, and Electron Microscopy Center, and International Center of Future Science, Jilin University, Changchun 130012, Jilin, China
| | - Mei-Jin Lin
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials and Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350016, China.
| | - Wei Zhang
- Key Laboratory of Automobile Materials MOE, and School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, and Electron Microscopy Center, and International Center of Future Science, Jilin University, Changchun 130012, Jilin, China.
| | - Zailai Xie
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials and Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350016, China.
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Kumar A, Kumar Das D, Kishore Sharma R, Selvaraj M, A. Assiri M, Ajmal S, Zhang G, Gupta RK, Yasin G. Study of Oxygen Reduction Reaction on Binuclear-Phthalocyanine with Fe-Fe, Co-Co, and Fe-Co Dual-Atom-Active Sites using Density Functional Theory. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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8
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Wang D, Dong S, Fu S, Shen Y, Zeng T, Yu W, Lu X, Wang L, Song S, Ma J. Catalytic ozonation for imazapic degradation over kelp-derived biochar: Promotional role of N- and S-based active sites. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 860:160473. [PMID: 36455736 DOI: 10.1016/j.scitotenv.2022.160473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/16/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
It is a feasible strategy to prepare reliable biochar catalysts for heterogeneous catalytic ozonation (HCO) processes by using inexpensive, high quality, and easily available raw materials. Here, an environmentally friendly, simple, and green biochar catalyst rich in nitrogen (N) and sulfur (S) has been prepared by the pyrolysis of kelp. Compared with directly carbonized kelp biomass (KB), acid-activated KB (KBA) and base-activated KB (KBB) have higher specific surface areas and more extensive porous structures, although only KBB displays effective ozone activation. Imazapic (IMZC), a refractory organic herbicide, was chosen as the target pollutant, which has apparently not hitherto been investigated in the HCO process. Second-order rate constants (k) for the reactions of IMZC with three different reactive oxygen species (ROS), specifically kO3, IMZC, kOH, IMZC, and k1O2, IMZC, have been determined as 0.974, 2.48 × 109, and 6.23 × 105 M-1 s-1, respectively. The amounts of graphitic N and thiophene S derived from the intrinsic N and S showed good correlations with the IMZC degradation rate, implicating them as the main active sites. OH and O2- and 1O2 were identified as main ROS in heterogeneous catalytic ozonation system for IMZC degradation. This study exemplified the utilization of endogenous N and S in biological carbon, and provided more options for the application of advanced oxidation processes and the development of marine resources.
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Affiliation(s)
- Da Wang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
| | - Shiwen Dong
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Siqi Fu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yi Shen
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Tao Zeng
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Weiti Yu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Xiaohui Lu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lizhang Wang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
| | - Shuang Song
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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9
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Lu X, Xiao L, Yang P, Xu H, Liu L, Li R, Li Y, Zhang H, Zhang J, An M. Highly exposed surface pore-edge FeN x sites for enhanced oxygen reduction performance in Zn-air batteries. Inorg Chem Front 2023. [DOI: 10.1039/d2qi02228a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Atomically dispersed pore-edge FeNx sites anchored on porous carbon exhibit excellent activity and stability towards ORR. The assembled Zn-air battery presents a high peak power density (150 mW cm−2) and long-cycle stability (450 h).
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Affiliation(s)
- Xiangyu Lu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Lihui Xiao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Peixia Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Hao Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Lilai Liu
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin, 150022, China
| | - Ruopeng Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Yaqiang Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Huiling Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Jinqiu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
| | - Maozhong An
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001 Harbin, China
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10
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Zaman S, Wang M, Liu H, Sun F, Yu Y, Shui J, Chen M, Wang H. Carbon-based catalyst supports for oxygen reduction in proton-exchange membrane fuel cells. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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11
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Successful Manufacturing Protocols of N-Rich Carbon Electrodes Ensuring High ORR Activity: A Review. Processes (Basel) 2022. [DOI: 10.3390/pr10040643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The exploration and development of different carbon nanomaterials happening over the past years have established carbon electrodes as an important electrocatalyst for oxygen reduction reaction. Metal-free catalysts are especially promising potential alternatives for replacing Pt-based catalysts. This article describes recent advances and challenges in the three main synthesis manners (i.e., pyrolysis, hydrothermal method, and chemical vapor deposition) as effective methods for the production of metal-free carbon-based catalysts. To improve the catalytic activity, heteroatom doping the structure of graphene, carbon nanotubes, porous carbons, and carbon nanofibers is important and makes them a prospective candidate for commercial applications. Special attention is paid to providing an overview on the recent major works about nitrogen-doped carbon electrodes with various concentrations and chemical environments of the heteroatom active sites. A detailed discussion and summary of catalytic properties in aqueous electrolytes is given for graphene and porous carbon-based catalysts in particular, including recent studies performed in the authors’ research group. Finally, we discuss pathways and development opportunities approaching the practical use of mainly graphene-based catalysts for metal–air batteries and fuel cells.
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An H, Gao Y, Wang S, Liang S, Wang X, Li N, Sun Z, Xiao J, Zhao X. Long-term corrosion protection of styrene acrylic coatings enhanced by fluorine and nitrogen co-doped graphene oxide. NANOTECHNOLOGY 2021; 33:105701. [PMID: 34823235 DOI: 10.1088/1361-6528/ac3d65] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
Graphene materials are widely used as a physical barrier when applying anticorrosion polymer coatings due to their large surface area and layered structure. However, the electrical conductivity of intrinsic graphene can accelerate galvanic corrosion and shorten the protection period. In this work, fluorine and nitrogen co-doped graphene oxide (FNGO) was synthesized by a hydrothermal process and acted as an anticorrosion filler in waterborne styrene acrylic coatings. Styrene acrylic coatings with 0.4 wt% FNGO showed a corrosion current density that was two orders of magnitude lower than the other samples in the potential polarization test and the largest impedance modulus in the electrochemical impedance spectroscopy results. The outstanding corrosion protection was attributed to the graphene acting as a physical barrier and the synergistic effect of the doped fluorine and nitrogen. In addition to the 'labyrinth effect' of the graphene matrix, the nitrogen atoms inserted in the graphene plane and fluorine atoms grafted on the graphene simultaneously adjusted the electrical properties of graphene, prohibiting electron transport between it and the styrene acrylic resin matrix. This result indicates that doped graphene oxide has great potential to increase the corrosion resistance of waterborne coatings.
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Affiliation(s)
- Haoran An
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- Hebei Key Laboratory of Flexible Functional Materials, Shijiazhuang 050018, People's Republic of China
| | - Yanan Gao
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
| | - Shengyuan Wang
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
| | - Shuang Liang
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- Hebei Key Laboratory of Flexible Functional Materials, Shijiazhuang 050018, People's Republic of China
| | - Xin Wang
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- Hebei Key Laboratory of Flexible Functional Materials, Shijiazhuang 050018, People's Republic of China
| | - Na Li
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- Hebei Key Laboratory of Flexible Functional Materials, Shijiazhuang 050018, People's Republic of China
| | - Zhanying Sun
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- Hebei Key Laboratory of Flexible Functional Materials, Shijiazhuang 050018, People's Republic of China
| | - Jijun Xiao
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- Hebei Key Laboratory of Flexible Functional Materials, Shijiazhuang 050018, People's Republic of China
| | - Xiongyan Zhao
- School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China
- Hebei Key Laboratory of Flexible Functional Materials, Shijiazhuang 050018, People's Republic of China
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Eco-Friendly Nitrogen-Doped Graphene Preparation and Design for the Oxygen Reduction Reaction. Molecules 2021; 26:molecules26133858. [PMID: 34202753 PMCID: PMC8270343 DOI: 10.3390/molecules26133858] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 06/21/2021] [Indexed: 11/29/2022] Open
Abstract
Four N-doped graphene materials with a nitrogen content ranging from 8.34 to 13.1 wt.% are prepared by the ball milling method. This method represents an eco-friendly mechanochemical process that can be easily adapted for industrial-scale productivity and allows both the exfoliation of graphite and the synthesis of large quantities of functionalized graphene. These materials are characterized by transmission and scanning electron microscopy, thermogravimetry measurements, X-ray powder diffraction, X-ray photoelectron and Raman spectroscopy, and then, are tested towards the oxygen reduction reaction by cyclic voltammetry and rotating disk electrode methods. Their responses towards ORR are analysed in correlation with their properties and use for the best ORR catalyst identification. However, even though the mechanochemical procedure and the characterization techniques are clean and green methods (i.e., water is the only solvent used for these syntheses and investigations), they are time consuming and, generally, a low number of materials can be prepared, characterized and tested. In order to eliminate some of these limitations, the use of regression learner and reverse engineering methods are proposed for facilitating the optimization of the synthesis conditions and the materials’ design. Thus, the machine learning algorithms are applied to data containing the synthesis parameters, the results obtained from different characterization techniques and the materials response towards ORR to quickly provide predictions that allow the best synthesis conditions or the best electrocatalysts’ identification.
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Nandi N, Gaurav S, Sarkar P, Kumar S, Sahu K. Multifunctional N-Doped Carbon Dots for Bimodal Detection of Bilirubin and Vitamin B 12, Living Cell Imaging, and Fluorescent Ink. ACS APPLIED BIO MATERIALS 2021; 4:5201-5211. [PMID: 35007002 DOI: 10.1021/acsabm.1c00371] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A N-doped carbon dot (NCD) has been synthesized via a simplistic one-step hydrothermal technique using l-aspartic acid and 3,6-diaminoacridine hydrochloride. The NCDs exhibit a high quantum yield (22.7%) and excellent optical stability in aqueous media. Additionally, NCDs display good solid-state yellowish-green emission and are suitable for security ink applications. The remarkable fluorescence (FL) properties of NCDs are further applied to develop a multifunctional sensor for bilirubin (BR) and vitamin B12 (VB12) via fluorescence quenching. We have systematically studied the FL quenching mechanisms of the two analytes. The primary quenching mechanism of BR is via the Förster resonant energy transfer (FRET) pathway facilitated by the H-bonding network between the hydrophilic moieties existing at the surface of BR and NCDs. In contrast, the inner filter effect (IFE) is mainly responsible for the recognition of VB12. The practicability of the nanoprobe NCDs is further tested in real-sample analysis for BR (human serum and urine samples) and VB12 (VB12 tablets, human serum, and energy drink) with a satisfactory outcome. The in vitro competency is also verified in the human cervical cancer cell line (HeLa cell) with negligible cytotoxicity and significant biocompatibility. This result facilitates the application of NCDs for bioimaging and recognition of VB12 in a living organism.
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Affiliation(s)
- Nilanjana Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Shubham Gaurav
- Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Priyanka Sarkar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Sachin Kumar
- Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Kalyanasis Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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15
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Ruffman C, Gordon CK, Gilmour JTA, Mackenzie FD, Garden AL. Enhancing the hydrogen evolution activity of MoS 2 basal planes and edges using tunable carbon-based supports. NANOSCALE 2021; 13:3106-3118. [PMID: 33523072 DOI: 10.1039/d0nr07100e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The hydrogen adsorption free energy (ΔGHads) on the basal plane and edges of MoS2 is studied using periodic density functional theory, with the catalyst supported by a range of two-dimensional carbon-based materials. Understanding how ΔGHads can be tuned with support gives insight into MoS2 as a catalyst for the hydrogen evolution reaction. The supports studied here include graphene oxide materials, heteroatom doped (S, B, and N) graphene, and some insulator materials (hexagonal boron nitride and graphitic carbon nitride). For the basal plane of MoS2, a wide range of values for ΔGHads are observed (between 1.4 and 2.2 eV) depending on the support material used. It is found that ΔGHads relates directly to the energy of occupied p-orbital states in the MoS2 catalyst, which is modified by the support material. On the Mo-edge of MoS2, different supports induce smaller variations in ΔGHads, with values ranging between -0.27 and 0.09 eV. However, a graphene support doped with graphitic N atoms produces a ΔGHads value of exactly 0 eV, which is thermodynamically ideal for hydrogen evolution. Furthermore, ΔGHads is found to relate closely and linearly to the amount of charge transfer between MoS2 and support when they adhere together. The support-induced tuning of ΔGHads on MoS2 observed here provides a useful tool for improving current MoS2 catalysts, and the discovery of variables which mediate changes in ΔGHads contributes to the rational design of new hydrogen evolution catalysts.
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Affiliation(s)
- Charlie Ruffman
- MacDiarmid Institute for Advanced Materials and Nanotechnology and Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
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Zhang H, Clark JH, Geng T, Zhang H, Cao F. A Carbon Catalyst Co-Doped with P and N for Efficient and Selective Oxidation of 5-Hydroxymethylfurfural into 2,5-Diformylfuran. CHEMSUSCHEM 2021; 14:456-466. [PMID: 32804445 DOI: 10.1002/cssc.202001525] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/14/2020] [Indexed: 06/11/2023]
Abstract
A newly designed N and P co-doped carbon material has been developed to catalyze the conversion of 5-hydroxymethylfurfural (HMF) to 2,5-furandialdehyde (DFF) with unprecedented yield and selectivity and demonstrating a synergistic effect between the heteroatoms. The desired catalyst was first synthesized via a pyrolysis method using urea as the nitrogen and carbon source followed by calcination with phytic acid solution as the phosphorus source. The mass ratio of phytic acid to C3 N4 and calcination temperature were varied to investigate their effects on catalyst synthesis and microstructure as well as subsequent catalytic activity in simple reaction systems under oxygen. The effect of reaction conditions on the final HMF conversion and DFF selectivity were also investigated systematically. The P-C-N-5-800 catalyst obtained with the optimized annealing temperature of 800 °C and mass ratio of phytic acid/C3 N4 of 5 enabled a 99.5 % DFF yield at 120 °C for 9 h under 10 bar oxygen pressure, being the highest among any reported metal-free heterogeneous catalyst to date. The excellent performance of P-C-N-5-800 could be ascribed to the synergy between N and P heteroatoms as well as the high content of graphitic-N and the P-C species within the carbon structure. Reusability studies show that the P-C-N-5-800 catalyst was stable and reusable without deactivation. These results strongly suggest that P-C-N-5-800 is a promising catalyst for large-scale production of DFF in a green manner.
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Affiliation(s)
- Huifa Zhang
- Engineering Research Centre of Large Scale Reactor Engineering and Technology of ministry of Education, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - James H Clark
- Green Chemistry Centre of Excellence, University of York, York, YO105DD, UK
| | - Tong Geng
- Engineering Research Centre of Large Scale Reactor Engineering and Technology of ministry of Education, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Huixian Zhang
- SINOPEC North China E&P Company, Zhengzhou, 450006, P. R. China
| | - Fahai Cao
- Engineering Research Centre of Large Scale Reactor Engineering and Technology of ministry of Education, East China University of Science and Technology, Shanghai, 200237, P. R. China
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Sun P, Zhang T, Luo H, Dou J, Bian W, Pan Z, Zheng A, Zhou B. Ferrocene-crosslinked polypyrrole hydrogel derived Fe–N-doped hierarchical porous carbon as an efficient electrocatalyst for pH universal ORR and Zn–air batteries. NEW J CHEM 2021. [DOI: 10.1039/d1nj01340h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Fe–N-doped catalyst (PF-800), prepared via pyrolysis of ferrocene-crosslinked polypyrrole hydrogel, shows impressive activity for ORR in various pH. Further Zn–air battery using PF-800 present high energy density and excellent long-term stability.
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Affiliation(s)
- Peng Sun
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
| | - Teng Zhang
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
| | - Haotian Luo
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
| | - Jinli Dou
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
| | - Weiwei Bian
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
| | - Zhengxuan Pan
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
| | - Aili Zheng
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
| | - Baolong Zhou
- School of Pharmacy
- Weifang Medical University
- Weifang
- P. R. China
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine
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18
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A Facile Method for the Generation of Fe 3C Nanoparticle and Fe-N x Active Site in Carbon Matrix to Achieve Good Oxygen Reduction Reaction Electrochemical Performances. MATERIALS 2020; 13:ma13214779. [PMID: 33114736 PMCID: PMC7663306 DOI: 10.3390/ma13214779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 02/02/2023]
Abstract
Introduction of both nitrogen and transition metal elements into the carbon materials has demonstrated to be a promising strategy to construct highly active electrode materials for energy shortage. In this work, through the coordination reaction between Fe3+ and 1,3,5-tris(4-aminophenyl)benzene, metallosupramolecular polymer precursors are designed for the preparation of carbon flakes co-doped with both Fe and N elements. The asprepared carbon flakes display wrinkled edges and comprise Fe3C nanoparticle and active site of Fe-Nx. These carbon materials exhibit excellent electrocatalytic performance. Towards oxygen reduction reaction (ORR), the optimized sample has Eonset and Ehalf-wave of 0.93 V and 0.83 V in alkaline system, respectively, which are very close to that of Pt/C. This approach may offer a new way to high performance and lowcost electrochemical catalysts.
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19
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Mohmad G, Sarkar S, Biswas A, Roy K, Dey RS. Polymer‐Assisted Electrophoretic Synthesis of N‐Doped Graphene‐Polypyrrole Demonstrating Oxygen Reduction with Excellent Methanol Crossover Impact and Durability. Chemistry 2020; 26:12664-12673. [DOI: 10.1002/chem.202002526] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/01/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Ghulam Mohmad
- Institute of Nano Science and Technology Sector 64, Mohali 160062 Punjab India
| | - Subhajit Sarkar
- Institute of Nano Science and Technology Sector 64, Mohali 160062 Punjab India
| | - Ashmita Biswas
- Institute of Nano Science and Technology Sector 64, Mohali 160062 Punjab India
| | - Kingshuk Roy
- Research Institute for Sustainable Energy (RISE) TCG Centres for Research and Education in Science and Technology (TCG CREST), Sector V Salt Lake Kolkata 700091 India
| | - Ramendra Sundar Dey
- Institute of Nano Science and Technology Sector 64, Mohali 160062 Punjab India
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20
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Wang X, Jia Y, Mao X, Zhang L, Liu D, Song L, Yan X, Chen J, Yang D, Zhou J, Wang K, Du A, Yao X. A Directional Synthesis for Topological Defect in Carbon. Chem 2020. [DOI: 10.1016/j.chempr.2020.05.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Das R, Sugimoto H, Fujii M, Giri PK. Quantitative Understanding of Charge-Transfer-Mediated Fe 3+ Sensing and Fast Photoresponse by N-Doped Graphene Quantum Dots Decorated on Plasmonic Au Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4755-4768. [PMID: 31914727 DOI: 10.1021/acsami.9b19067] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The formation of a heterostructure with plasmonic nanoparticles drastically alters the optoelectronic properties of graphene quantum dots (GQDs), resulting in exceptional properties. In the present work, we prepare nitrogen-doped GQDs decorated on gold nanoparticles (Au@N-GQDs) by a one-step green reduction method and study its extraordinary fluorescence and photoresponse characteristics. The as-prepared Au@N-GQDs show more than one order of magnitude enhancement in the fluorescence intensity as compared to the bare N-GQDs, which is attributed to hot electron generation and improved absorption in N-GQDs by local field enhancement and the modification of the edge functional groups. Because of the selective coordination to Fe3+ ions, the Au@N-GQDs exhibit extraordinary quenching of fluorescence, with ultrahigh sensitivity for the detection of Fe3+ (<1 nM). A new model for the charge-transfer dynamics is developed involving the Langmuir's law of adsorption to explain the unusual quenching, which strongly deviates from the known models of static/dynamic quenching. The proposed sensor is successfully implemented for the ultrasensitive detection of Fe3+ ions in human serum and Brahmaputra river water samples, representing its high potential applications in clinical as well as environmental diagnosis. Additionally, because of its high absorption in the UV-vis-NIR region and high charge density with long life excitons, the Au@N-GQDs are utilized as photodetectors with ∼104 times faster response than that of bare N-GQDs. The Au@N-GQD-based photodetector possesses a high responsivity of ∼1.36 A/W and a remarkably high external quantum efficiency of ∼292.2%, which is much superior to the GQD-based photodetectors reported till date. The underlying mechanism of ultrafast photoresponse is ascribed to the transfer of hot electrons along with the tunneling of the electrons from Au NPs to N-GQDs as well as the defect reduction of N-GQDs by the incorporation of Au NPs. Without the use of any charge transporting layer, the outstanding performance of N-GQD-based plasmonic photodetector opens up unique opportunities for future high-speed optoelectronic devices.
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Affiliation(s)
- Ruma Das
- Department of Physics , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Hiroshi Sugimoto
- Department of Electrical and Electronics Engineering , Kobe University , Rokkodai, Nada, Kobe 657 , Japan
| | - Minoru Fujii
- Department of Electrical and Electronics Engineering , Kobe University , Rokkodai, Nada, Kobe 657 , Japan
| | - P K Giri
- Department of Physics , Indian Institute of Technology Guwahati , Guwahati 781039 , India
- Centre for Nanotechnology , Indian Institute of Technology Guwahati , Guwahati 781039 , India
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22
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Zhang H, Niu F, Li S, Yin Y, Dong H, Yue H, Cao Z, Yang S. Thin metal organic layer derived Co/Co 9S 8/N,S co-doped carbon nanosheets synthesized by the space confinement effect of montmorillonite for oxygen electrocatalysis. NEW J CHEM 2020. [DOI: 10.1039/d0nj00320d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Co/Co9S8 anchored to N,S co-doped carbon nanosheets resulting T-CCSNC electrocatalysts show excellent ORR and OER catalytic activity and stability.
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Affiliation(s)
- Hengbo Zhang
- School of Chemistry and Chemical Engineering
- Henan Normal University National and Local Joint Engineering Laboratory of Motive Power and Key Materials
- Xinxiang
- China
| | - Fuquan Niu
- School of Chemistry and Chemical Engineering
- Henan Normal University National and Local Joint Engineering Laboratory of Motive Power and Key Materials
- Xinxiang
- China
| | - Shaoyu Li
- College of Electronic and Electrical Engineering
- Henan Normal University
- Xinxiang
- China
| | - Yanhong Yin
- School of Chemistry and Chemical Engineering
- Henan Normal University National and Local Joint Engineering Laboratory of Motive Power and Key Materials
- Xinxiang
- China
| | - Hongyu Dong
- School of Chemistry and Chemical Engineering
- Henan Normal University National and Local Joint Engineering Laboratory of Motive Power and Key Materials
- Xinxiang
- China
| | - Hongyun Yue
- School of Chemistry and Chemical Engineering
- Henan Normal University National and Local Joint Engineering Laboratory of Motive Power and Key Materials
- Xinxiang
- China
| | - Zhaoxia Cao
- School of Chemistry and Chemical Engineering
- Henan Normal University National and Local Joint Engineering Laboratory of Motive Power and Key Materials
- Xinxiang
- China
| | - Shuting Yang
- School of Chemistry and Chemical Engineering
- Henan Normal University National and Local Joint Engineering Laboratory of Motive Power and Key Materials
- Xinxiang
- China
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Xu H, Wang D, Yang P, Liu A, Li R, Li Y, Xiao L, Zhang J, An M. A theoretical study of atomically dispersed MN 4/C (M = Fe or Mn) as a high-activity catalyst for the oxygen reduction reaction. Phys Chem Chem Phys 2020; 22:28297-28303. [PMID: 33295891 DOI: 10.1039/d0cp04676k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon-based, non-noble metal catalysts for the oxygen reduction reaction (ORR) are crucial for the large-scale application of metal-air batteries and fuel cells. Density functional theory calculations were performed to explore the potential of atomically dispersed MN4/C (M = Fe or Mn) as an ORR catalyst in an acidic electrolyte and the ORR mechanism on MN4/C was systematically studied. The results indicated MN4 as the active site of MN4/C and a four-electron OOH transformation pathway as the preferred ORR mechanism on the MN4/C surface. The Gibbs free energy diagram showed that the rate-determining step of the FeN4/C and MnN4/C catalysts is the formation of the second H2O molecule and OOH*, respectively. FeN4/C exhibited higher thermodynamic limiting potential (0.79 V) and, thus, higher ORR activity than MnN4/C (0.52 V) in an acidic environment; its excellent catalytic performance is due to the nice electron structure and adsorption properties of the FeN4 site. Therefore, this work demonstrates that atomically dispersed MN4/C is a promising catalyst for the ORR.
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Affiliation(s)
- Hao Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
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Ge L, Wang D, Yang P, Xu H, Xiao L, Zhang GX, Lu X, Duan Z, Meng F, Zhang J, An M. Graphite N-C-P dominated three-dimensional nitrogen and phosphorus co-doped holey graphene foams as high-efficiency electrocatalysts for Zn-air batteries. NANOSCALE 2019; 11:17010-17017. [PMID: 31498345 DOI: 10.1039/c9nr04696h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The search for metal-free catalysts for oxygen reduction reactions (ORRs) in energy storage and conversion devices, such as fuel cells and metal-air batteries, is highly desirable but challenging. Here, we have designed and synthesized controllable 3D nitrogen and phosphorous co-doped holey graphene foams (N,P-HGFs) as a high-efficiency ORR catalyst through structural regulation and electronic engineering. The obtained catalyst shows a half-wave potential of 0.865 V in alkaline electrolytes. It is found that Zn-air batteries with the N,P-HGFs-1000 air electrode exhibit excellent discharge performance and durability. Our study suggests that the remarkable ORR performance of N,P co-doped graphene is mainly due to the graphite N-C-P structure, where an enhanced charge density and increased HOMO energy level are confirmed by both experimental results and theoretical density-functional theory calculations.
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Affiliation(s)
- Liping Ge
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 China.
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25
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Pham-Truong TN, Ranjan C, Randriamahazaka H, Ghilane J. Nitrogen doped carbon dots embedded in poly(ionic liquid) as high efficient metal-free electrocatalyst for oxygen reduction reaction. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.12.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Zhao C, Li J, Chen Y, Chen J. Nitrogen and sulfur dual-doped graphene as an efficient metal-free electrocatalyst for the oxygen reduction reaction in microbial fuel cells. NEW J CHEM 2019. [DOI: 10.1039/c9nj01480b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, nitrogen- and sulfur-codoped graphene (N/S-G) was prepared and used as an efficient metal-free electrocatalyst for the oxygen reduction reaction (ORR) in microbial fuel cells (MFCs), exhibiting a maximum power density of 1368 mW m−2, relatively higher than that of commercial Pt/C.
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Affiliation(s)
- Cuie Zhao
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Jinxiang Li
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Yan Chen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Jianyu Chen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
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