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Zhang T, Sun L, Sun X, Dong H, Yu H, Yu H. Radical and non-radical cooperative degradation in metal-free electro-Fenton based on nitrogen self-doped biochar. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129063. [PMID: 35650745 DOI: 10.1016/j.jhazmat.2022.129063] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/17/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
To achieve sustainable metal-free electron-Fenton, N self-doped biochar air-cathode (BCAC) was prepared by pyrolyzing coffee residues. During the pyrolysis process, the endogenous N transformed from edge-doping to graphite-doping. Particularly, N vacancies started to evolve when the peak temperature exceeded 700 °C. A high Tetracycline removal rate of 70.42% was obtained on the BCAC at the current density of 4 mA cm-2. Quenching tests incorporated with ESR spectroscopy were adopted to identify the specific oxidants produced on the cathode. The results showed that •OH (37.36%), •O2- (29.67%) and 1O2 (24.17%) played comparable role in the tetracycline removal, suggesting the coexist of radical and non-radical oxidants in our electro-Fenton system. According to the structure characterization and the DFT calculation, graphitic N was suggested as the critical site for H2O2 generation, and both graphitic N and pyridinic N were electroactive sites for H2O2 activation to •OH. Graphitic N and N vacancies with stronger capabilities in O2 adsorption and electron-trapping were proposed as the electroactive sites for 1O2 and •O2- formation. This work predicts a novel electro-Fenton process with cooperative radical and non-radical degradation on N self-doped carbonaceous catalysts at a mild condition, which is extremely meaningful for boosting sustainable electro-Fenton technology.
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Affiliation(s)
- Ting Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Lu Sun
- Institute of Modern Optics, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Nankai University, Tianjin 300350, China
| | - Xiaohong Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Heng Dong
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China.
| | - Han Yu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China; Department of Water Resources Engineering, Lund University, Lund 22100, Sweden
| | - Hongbing Yu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
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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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Umeshbabu E, Hari Krishna Charan P, Justin P, Ranga Rao G. Hierarchically Organized NiCo
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Microflowers Anchored on Multiwalled Carbon Nanotubes: Efficient Bifunctional Electrocatalysts for Oxygen and Hydrogen Evolution Reactions. Chempluschem 2020. [DOI: 10.1002/cplu.201900603] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ediga Umeshbabu
- Department of Chemistry and DST-IITM Solar Energy Harnessing Centre (DSEHC) Indian Institute of Technology Madras Chennai 600036 India
| | - P. Hari Krishna Charan
- Department of Chemistry Aditya Institute of Technology and Management Tekkali 532201, Andhra Pradesh India
| | - Ponniah Justin
- Department of Chemistry Rajiv Gandhi University of Knowledge Technologies RK Valley Kadapa 516330, Andhra Pradesh India
| | - G. Ranga Rao
- Department of Chemistry and DST-IITM Solar Energy Harnessing Centre (DSEHC) Indian Institute of Technology Madras Chennai 600036 India
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4
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Wasim Khan M, Zuo X, Yang Q, Tang H, Rehman KMU, Wu M, Li G. Quantum dot embedded N-doped functionalized multiwall carbon nanotubes boost the short-circuit current of Ru(ii) based dye-sensitized solar cells. NANOSCALE 2020; 12:1046-1060. [PMID: 31845950 DOI: 10.1039/c9nr09227g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Here, we report zinc sulfide quantum dots, ZnS(QDs), moored on N-doped functionalized multiwall carbon nanotubes (MWCNTs) wrapped with reduced graphene oxide (rGO). The MWCNTs have a tangled network, a particular surface area, and a distinctive hollow structure that may be suitable for use as a counter electrode (CE) material. A ZnS@N.f-MWCNTs@rGO composite as the CE on a fluorine-doped tin oxide substrate in a dye-sensitized solar cell (DSSC) was fabricated using a doctor blade technique. The electrochemical performance showed that at the electrolyte/CE interface, the ZnS(QDs) and N-doped functionalized MWCNTs wrapped with rGO (ZnS@N.f-MWCNTs@rGO) electrode has a lower transfer charge resistance (Rct) and a greater catalytic capacity than naked ZnS(QDs). A power conversion efficiency (PCE) of 9.4% was attained for this DSSC gadget, which is higher than that of a DSSC gadget utilizing ZnS(QDs), ZnS@N.f-MWCNTs, ZnS@rGO and Pt. Also, the DSSC device using ZnS@N.f-MWCNTs@rGO had a fill factor (FF) that was better than the other counter electrodes. The cyclic voltammetry and electrochemical impedance spectra (EIS) electron transfer measurements showed that ZnS@N.f-MWCNTs@rGO films can provide fast electron transfer from the electrolyte to the CE and great electrocatalytic activity to reduce triiodide to a CE based on ZnS@N.f-MWCNTs@rGO in the DSSC.
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Affiliation(s)
- Muhammad Wasim Khan
- School of Physics and Materials Science, Anhui University, Hefei 230601, P.R. China
| | - Xueqin Zuo
- School of Physics and Materials Science, Anhui University, Hefei 230601, P.R. China
| | - Qun Yang
- School of Physics and Materials Science, Anhui University, Hefei 230601, P.R. China
| | - Huaibao Tang
- School of Physics and Materials Science, Anhui University, Hefei 230601, P.R. China and Anhui Key Laboratory of Information Materials and Devices, Anhui University, Hefei 230601, P.R. China
| | - Khalid Mehmood Ur Rehman
- School of Physics and Materials Science, Anhui University, Hefei 230601, P.R. China and Department of Physics, Riphah International University, Faisalabad Campus, Pakistan
| | - Mingzai Wu
- School of Physics and Materials Science, Anhui University, Hefei 230601, P.R. China and Anhui Key Laboratory of Information Materials and Devices, Anhui University, Hefei 230601, P.R. China
| | - Guang Li
- School of Physics and Materials Science, Anhui University, Hefei 230601, P.R. China and Anhui Key Laboratory of Information Materials and Devices, Anhui University, Hefei 230601, P.R. China and Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P.R. China. and Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P.R. China
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5
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Engineering N-reduced graphene oxide wrapped Co3O4@f-MWCNT hybrid for enhance performance dye-sensitized solar cells. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Liang J, Tang D, Huang L, Chen Y, Ren W, Sun J. High oxygen reduction reaction performance nitrogen-doped biochar cathode: A strategy for comprehensive utilizing nitrogen and carbon in water hyacinth. BIORESOURCE TECHNOLOGY 2018; 267:524-531. [PMID: 30048928 DOI: 10.1016/j.biortech.2018.07.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/15/2018] [Accepted: 07/17/2018] [Indexed: 05/28/2023]
Abstract
In this study, a novel nitrogen-doped biochar oxygen reduction reaction cathode-water hyacinth carbon, was prepared by ZnCl2 molten salt carbonization without additional nitrogen source, which displayed a high performance in electro-Fenton (E-Fenton) process. The BET result shows that water hyacinth carbon achieved a much larger specific surface area (829 m2·g-1) than non-melt salt carbonized one (323 m2·g-1) and graphite powder (28 m2·g-1). Furthermore, characterization by XPS and EIS shows that both pyridinic-N (43.24%) and graphitic-N (56.75%) existed in water hyacinth carbon and Warburg constant was only 0.051. Because of a high H2O2 producing yield 1.7 mmol·L-1 and corresponding current efficiency 81.2 ± 2.5% in molten salt carbonized water hyacinth biochar, a high kinetic constant 0.318 min-1 in DMP degradation was achieved, which was 4 times higher than graphite powder (0.076 min-1). The TOC removal achieved 86.8% in 30 min and the corresponding energy consumption reached a low level 60.15 kW·h·kgTOC-1.
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Affiliation(s)
- Jiaxiang Liang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Diyong Tang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Li Huang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Yifei Chen
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Wei Ren
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Jie Sun
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan 430074, PR China.
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7
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Li X, Dong F, Xu N, Zhang T, Li K, Qiao J. Co 3O 4/MnO 2/Hierarchically Porous Carbon as Superior Bifunctional Electrodes for Liquid and All-Solid-State Rechargeable Zinc-Air Batteries. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15591-15601. [PMID: 29616793 DOI: 10.1021/acsami.7b18684] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The design of efficient, durable, and affordable catalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is very indispensable in liquid-type and flexible all-solid-state zinc-air batteries. Herein, we present a high-performance bifunctional catalyst with cobalt and manganese oxides supported on porous carbon (Co3O4/MnO2/PQ-7). The optimized Co3O4/MnO2/PQ-7 exhibited a comparable ORR performance with commercial Pt/C and a more superior OER performance than all of the other prepared catalysts, including commercial Pt/C. When applied to practical aqueous (6.0 M KOH) zinc-air batteries, the Co3O4/MnO2/porous carbon hybrid catalysts exhibited exceptional performance, such as a maximum discharge peak power density as high as 257 mW cm-2 and the most stable charge-discharge durability over 50 h with negligible deactivation to date. More importantly, a series of flexible all-solid-state zinc-air batteries can be fabricated by the Co3O4/MnO2/porous carbon with a layer-by-layer method. The optimal catalyst (Co3O4/MnO2/PQ-7) exhibited an excellent peak power density of 45 mW cm-2. The discharge potentials almost remained unchanged for 6 h at 5 mA cm-2 and possessed a long cycle life (2.5 h@5 mA cm-2). These results make the optimized Co3O4/MnO2/PQ-7 a promising cathode candidate for both liquid-type and flexible all-solid-state zinc-air batteries.
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Affiliation(s)
- Xuemei Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering , Donghua University , 2999 Ren'min North Road , Shanghai 201620 , China
| | - Fang Dong
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering , Donghua University , 2999 Ren'min North Road , Shanghai 201620 , China
| | - Nengneng Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering , Donghua University , 2999 Ren'min North Road , Shanghai 201620 , China
| | - Tao Zhang
- State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai , 200050 , China
| | - Kaixi Li
- § Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan , Shanxi 030001 , China
| | - Jinli Qiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering , Donghua University , 2999 Ren'min North Road , Shanghai 201620 , China
- Shanghai Innovation Institute for Materials , Chinese Academy of Sciences , Shanghai 200444 , China
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8
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Electrochemical co-preparation of cobalt sulfide/reduced graphene oxide composite for electrocatalytic activity and determination of H2O2 in biological samples. J Colloid Interface Sci 2018; 509:153-162. [DOI: 10.1016/j.jcis.2017.08.087] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/18/2017] [Accepted: 08/27/2017] [Indexed: 12/20/2022]
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9
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Sun L, Luo Y, Li M, Hu G, Xu Y, Tang T, Wen J, Li X, Wang L. Role of Pyridinic-N for Nitrogen-doped graphene quantum dots in oxygen reaction reduction. J Colloid Interface Sci 2017; 508:154-158. [PMID: 28829955 DOI: 10.1016/j.jcis.2017.08.047] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/14/2017] [Accepted: 08/15/2017] [Indexed: 10/19/2022]
Abstract
Nitrogen-doped graphene quantum dots (N-GQDs) exhibit exciting properties in the oxygen reduction reaction (ORR) for ample electrocatalytic edging and N-doped active sites. However, low yield and high dispersity of N-GQDs prohibit their direct application as the electrocatalyst. In this paper, two facile hydrothermal progress were developed to synthesize the high-yield N-GQDs with the diameter of ca. 2-6nm and the hybrid of N-GQDs/Reduced Graphene Oxide (N-GQDs/r-GO). The results demonstrated that the N-GQDs/r-GO display remarkable electrocatalytic activity. Moreover, it can be found that the pyridinic-N plays a major role in ORR. Both the average electron transfer number and the onset potential depend on the content of pyridinic-N. The proposed synthesis strategy is facile and low-cost, serving as a feasible method for the development of highly efficient electrocatalysts.
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Affiliation(s)
- Lang Sun
- College of Science, Guilin University of Technology, Guilin 541004, PR China
| | - Yi Luo
- College of Science, Guilin University of Technology, Guilin 541004, PR China
| | - Ming Li
- College of Science, Guilin University of Technology, Guilin 541004, PR China.
| | - Guanghui Hu
- College of Science, Guilin University of Technology, Guilin 541004, PR China
| | - Yongjie Xu
- College of Science, Guilin University of Technology, Guilin 541004, PR China
| | - Tao Tang
- College of Science, Guilin University of Technology, Guilin 541004, PR China
| | - Jianfeng Wen
- College of Science, Guilin University of Technology, Guilin 541004, PR China
| | - Xinyu Li
- College of Science, Guilin University of Technology, Guilin 541004, PR China.
| | - Liang Wang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China.
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10
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Ma Y, Lu Z, Shan G, Chen Y. Solvothermal Fabrication of Nitrogen-Doped Carbon Nanoparticles as Efficient Catalyst for Oxygen Reduction in KOH Electrolyte. ChemistrySelect 2017. [DOI: 10.1002/slct.201700771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yun Ma
- Shandong Liming Polytechnic Vocational College; Jiwei Road 389 Jinan, Shandong China 250000
| | - Zhenzhen Lu
- College of Civil Engineering; ChongQing JiaoTong University; XueFu road 66 ChongQing China 400074
| | - Guangchun Shan
- School of Instrumentation Science and Opto-electronics Engineering; Beihang University; Beijing China 100191
| | - Yue Chen
- College of Civil Engineering; ChongQing JiaoTong University; XueFu road 66 ChongQing China 400074
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11
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Zhu W, Zhang R, Qu F, Asiri AM, Sun X. Design and Application of Foams for Electrocatalysis. ChemCatChem 2017. [DOI: 10.1002/cctc.201601607] [Citation(s) in RCA: 213] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wenxin Zhu
- College of Chemistry; Sichuan University; Chengdu 610064 Sichuan China
| | - Rong Zhang
- College of Chemistry; Sichuan University; Chengdu 610064 Sichuan China
| | - Fengli Qu
- College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong China
| | - Abdullah M. Asiri
- Chemistry Department; King Abdulaziz University; Jeddah 21589 Saudi Arabia
| | - Xuping Sun
- College of Chemistry; Sichuan University; Chengdu 610064 Sichuan China
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12
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Dong ZZ, Lu L, Ko CN, Yang C, Li S, Lee MY, Leung CH, Ma DL. A MnO 2 nanosheet-assisted GSH detection platform using an iridium(iii) complex as a switch-on luminescent probe. NANOSCALE 2017; 9:4677-4682. [PMID: 28139807 DOI: 10.1039/c6nr08357a] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A rapid and sensitive detection platform for GSH has been constructed by combining a MnO2 nanosheet with a luminescent iridium(iii) complex [Ir(Cl-phq)2(Cl-phen)]+. The MnO2 nanosheet was prepared by using a facile one-step approach and was characterized by TEM. The luminescence intensity of the detection platform responded linearly with the GSH concentration from 1 to 200 μM (R2 = 0.9951), and the detection limit for GSH was 0.13 μM. More importantly, practical application of the detection platform for visualizing the intracellular GSH distribution in living zebrafish has also been demonstrated.
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Affiliation(s)
- Zhen-Zhen Dong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Lihua Lu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China. and College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Chung-Nga Ko
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Chao Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Shengnan Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Ming-Yuen Lee
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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Co 3O 4 nanoparticles anchored on nitrogen-doped reduced graphene oxide as a multifunctional catalyst for H 2O 2 reduction, oxygen reduction and evolution reaction. Sci Rep 2017; 7:43638. [PMID: 28272415 PMCID: PMC5341290 DOI: 10.1038/srep43638] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/26/2017] [Indexed: 01/26/2023] Open
Abstract
This study describes a facile and effective route to synthesize hybrid material consisting of Co3O4 nanoparticles anchored on nitrogen-doped reduced graphene oxide (Co3O4/N-rGO) as a high-performance tri-functional catalyst for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and H2O2 sensing. Electrocatalytic activity of Co3O4/N-rGO to hydrogen peroxide reduction was tested by cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry. Under a reduction potential at −0.6 V to H2O2, this constructing H2O2 sensor exhibits a linear response ranging from 0.2 to 17.5 mM with a detection limit to be 0.1 mM. Although Co3O4/rGO or nitrogen-doped reduced graphene oxide (N-rGO) alone has little catalytic activity, the Co3O4/N-rGO exhibits high ORR activity. The Co3O4/N-rGO hybrid demonstrates satisfied catalytic activity with ORR peak potential to be −0.26 V (vs. Ag/AgCl) and the number of electron transfer number is 3.4, but superior stability to Pt/C in alkaline solutions. The same hybrid is also highly active for OER with the onset potential, current density and Tafel slope to be better than Pt/C. The unusual catalytic activity of Co3O4/N-rGO for hydrogen peroxide reduction, ORR and OER may be ascribed to synergetic chemical coupling effects between Co3O4, nitrogen and graphene.
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Kou Z, Guo B, Zhao Y, Huang S, Meng T, Zhang J, Li W, Amiinu IS, Pu Z, Wang M, Jiang M, Liu X, Tang Y, Mu S. Molybdenum Carbide-Derived Chlorine-Doped Ordered Mesoporous Carbon with Few-Layered Graphene Walls for Energy Storage Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3702-3712. [PMID: 28027443 DOI: 10.1021/acsami.6b14440] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, we propose a one-step process to realize the in situ evolution of molybdenum carbide (Mo2C) nanoflakes into ordered mesoporous carbon with few-layered graphene walls (OMG) by chloridization and self-organization, and simultaneously the Cl-doping of OMG (OMG-Cl) by modulating chloridization and annealing processes is fulfilled. Benefiting from the improvement of electroconductivity induced by Cl-doping, together with large specific surface area (1882 cm2 g-1) and homogeneous pore structures, as anode of lithium ion batteries, OMG-Cl shows remarkable charge capacity of 1305 mA h g-1 at current rate of 50 mA g-1 and fast charge-discharge rate within dozens of seconds (a charge time of 46 s), as well as retains a charge capacity of 733 mA h g-1 at a current rate of 0.5 mA g-1 after 100 cycles. Furthermore, as a promising electrode material for supercapacitors, OMG-Cl holds the specific capacitances of 250 F g-1 in 1 M H2SO4 solution and 220 F g-1 at a current density of 0.5 A g-1 in 6 M KOH solution, which are ∼40% and 20% higher than those of undoped OMG electrode, respectively. The high capacitive performance of OMG-Cl material can be due to the additional fast Faradaic reactions induced from Cl-doping species.
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Affiliation(s)
- Zongkui Kou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Beibei Guo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Yufeng Zhao
- Key Laboratory of Applied Chemistry, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Shifei Huang
- Key Laboratory of Applied Chemistry, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Tian Meng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Jie Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Wenqiang Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Ibrahim Saana Amiinu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Zonghua Pu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Min Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Min Jiang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Xiaobo Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
| | - Yongfu Tang
- Key Laboratory of Applied Chemistry, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, People's Republic of China
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Tong X, Chen S, Guo C, Xia X, Guo XY. Mesoporous NiCo 2O 4 Nanoplates on Three-Dimensional Graphene Foam as an Efficient Electrocatalyst for the Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28274-28282. [PMID: 26796978 DOI: 10.1021/acsami.5b10044] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Catalysts for the oxygen reduction reaction (ORR) are highly important in fuel cells and metal-air batteries. Cheap ORR catalysts with ultrahigh electrochemical activity, selectivity, and stability are extremely desirable but still remain challenging. Herein, mesoporous NiCo2O4 nanoplate (NP) arrays on three-dimensional (3D) graphene foam are shown to be a highly economical ORR catalyst. This mesoporous mixed-valence oxide can provide more electrocatalytic active sites with increased accessible surface area. In addition, graphene-foam-supported NiCo2O4 NP arrays have a 3D hierarchical porous structure, which is of great benefit to ion diffusion and electron transfer. As a result, the mesoporous NiCo2O4 NP arrays/graphene foam catalyst exhibits outstanding ORR performance with the four-electron reduction of O2 to H2O in alkaline media. Furthermore, the mesoporous catalyst shows enhanced electrocatalytic activity with a half-wave potential of 0.86 V vs RHE and better stability compared with a commercial Pt/C catalyst.
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Affiliation(s)
- Xili Tong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan 030001, China
| | - Shuai Chen
- Analytical Instrumentation Center, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan 030001, China
| | - Congxiu Guo
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan 030001, China
| | - Xinhui Xia
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and Department of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Xiang-Yun Guo
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences , Taiyuan 030001, China
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Li XH, Wan K, Liu QB, Piao JH, Zheng YY, Liang ZX. Nitrogen-doped ordered mesoporous carbon: Effect of carbon precursor on oxygen reduction reactions. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(16)62498-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Chen L, Xiao J, Liu B, Yi T. A Bonded Double-Doped Graphene Nanoribbon Framework for Advanced Electrocatalysis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16649-16655. [PMID: 27300690 DOI: 10.1021/acsami.6b02522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The preparation of a low-cost, high-efficient, and stable electrocatalyst as an alternative to platinum for the oxygen reduction reaction (ORR) is especially important to various energy storage components, such as fuel cells and metal-air batteries. Here, we report a new type of bonded double-doped graphene nanoribbon-based nonprecious metal catalysts in which Fe3C nanoparticles embedded in Fe-N-doped graphene nanoribbon (GNRs) frameworks through a simple pyrolysis. The as-obtained catalyst possesses several desirable merits for the ORR, such as diverse high-efficiency catalytic sites, a high specific surface area, an ideal hierarchical cellular structure, and a highly conductive N-doped GNR network. Accordingly, the prepared catalyst shows a superior ORR activity (an onset potential of 0.02 V and a half-wave potential of -0.148 V versus an Ag/AgCl electrode) in alkaline media, close to the commercial Pt/C catalyst. Moreover, it also displays good ORR behavior in an acidic solution.
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Affiliation(s)
- Liang Chen
- Department of Chemistry and Collaborative Innovation Center of Chemistry for Energy Materials, and State Key Lab of Molecular Engineering of Polymers, Fudan University , Shanghai 200433, People's Republic of China
| | - Jingjing Xiao
- Department of Chemistry and Collaborative Innovation Center of Chemistry for Energy Materials, and State Key Lab of Molecular Engineering of Polymers, Fudan University , Shanghai 200433, People's Republic of China
| | - Baohong Liu
- Department of Chemistry and Collaborative Innovation Center of Chemistry for Energy Materials, and State Key Lab of Molecular Engineering of Polymers, Fudan University , Shanghai 200433, People's Republic of China
| | - Tao Yi
- Department of Chemistry and Collaborative Innovation Center of Chemistry for Energy Materials, and State Key Lab of Molecular Engineering of Polymers, Fudan University , Shanghai 200433, People's Republic of China
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18
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Zhou H, Zhang J, Zhu J, Liu Z, Zhang C, Mu S. A self-template and KOH activation co-coupling strategy to synthesize ultrahigh surface area nitrogen-doped porous graphene for oxygen reduction. RSC Adv 2016. [DOI: 10.1039/c6ra16703a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, a self-template strategy is developed to synthesize nitrogen doped porous graphene (NDPG) by using porous biomass as a template, fully coupled with KOH activation. As a catalyst, NDPG exhibits outstanding ORR activity and stability.
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Affiliation(s)
- Huang Zhou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Jian Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Jiawei Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Ziyi Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Chengtian Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
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19
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Xiao Z, Gao X, Shi M, Ren G, Xiao G, Zhu Y, Jiang L. China rose-derived tri-heteroatom co-doped porous carbon as an efficient electrocatalysts for oxygen reduction reaction. RSC Adv 2016. [DOI: 10.1039/c6ra14619h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, an N, O and S tri-heteroatom-doped, hierarchically porous carbon material (RPC-M) was obtained from natural rose petals, and as-prepared RPC-M displayed efficient electrocatalyst properties for the oxygen reduction reaction.
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Affiliation(s)
- Zhen Xiao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 116023
- China
| | - Xiaoyu Gao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 116023
- China
| | - Minhao Shi
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 116023
- China
| | - Guangyuan Ren
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 116023
- China
| | - Guozheng Xiao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 116023
- China
| | - Ying Zhu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 116023
- China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 116023
- China
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20
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One-step synthesis of cobalt, nitrogen-codoped carbon as nonprecious bifunctional electrocatalyst for oxygen reduction and evolution reactions. Sci Bull (Beijing) 2016. [DOI: 10.1007/s11434-015-0978-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Ejigu A, Edwards M, Walsh DA. Synergistic Catalyst–Support Interactions in a Graphene–Mn3O4 Electrocatalyst for Vanadium Redox Flow Batteries. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01973] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andinet Ejigu
- School
of Chemistry, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Matthew Edwards
- School
of Chemistry, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Darren A. Walsh
- School
of Chemistry, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
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22
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Kreek K, Sarapuu A, Samolberg L, Joost U, Mikli V, Koel M, Tammeveski K. Cobalt-Containing Nitrogen-Doped Carbon Aerogels as Efficient Electrocatalysts for the Oxygen Reduction Reaction. ChemElectroChem 2015. [DOI: 10.1002/celc.201500275] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kristiina Kreek
- Institute of Chemistry; Tallinn University of Technology; Akadeemia tee 15 12618 Tallinn Estonia
| | - Ave Sarapuu
- Institute of Chemistry; University of Tartu; Ravila 14 A 50411 Tartu Estonia
| | - Lars Samolberg
- Institute of Chemistry; University of Tartu; Ravila 14 A 50411 Tartu Estonia
| | - Urmas Joost
- Institute of Physics; University of Tartu; Ravila 14C 50411 Tartu Estonia
| | - Valdek Mikli
- Center for Materials Research; Tallinn University of Technology; Ehitajate tee 5 19086 Tallinn Estonia
| | - Mihkel Koel
- Institute of Chemistry; Tallinn University of Technology; Akadeemia tee 15 12618 Tallinn Estonia
| | - Kaido Tammeveski
- Institute of Chemistry; University of Tartu; Ravila 14 A 50411 Tartu Estonia
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24
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Zhang Y, Xing LG, Chen XW, Wang JH. Nano copper oxide-incorporated mesoporous carbon composite as multimode adsorbent for selective isolation of hemoglobin. ACS APPLIED MATERIALS & INTERFACES 2015; 7:5116-5123. [PMID: 25692225 DOI: 10.1021/am508836m] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Assembly of nano-objects with tunable size, morphology and function into integrated nanostructures is critical for the development of a novel nanosystem in adsorption, sensing and drug/gene delivery. We demonstrate herein the fabrication of ordered mesoporous carbon by assembling uniform and highly dispersed copper-oxide (CuxOy) nanoparticles into the mesopores via evaporation of solvent from the mixture of triblock copolymer, carbon source and metal nitrate hydrate. The ordered 2D hexagonal mesoporous carbon composite possesses a large surface area of 580.8 cm(2)/g, a uniform pore size of 5.4 nm, a large pore volume of 0.64 cm(3)/g and a high metal content of 3.32 wt %. The mesoporous composite exhibits excellent adsorption selectivity and high adsorption capacity to hemoglobin (Hb) under the synergistic effect of hydrophobic and metal-affinity interactions as well as size exclusion. This facilitates multimode adsorption of hemoglobin fitting Langmuir adsorption model and offers an adsorption capacity of 1666.7 mg g(-1) for hemoglobin. The mesoporous composite is used for the isolation of hemoglobin from human whole blood with high purity. It demonstrates the potential of the copper-oxide nanoparticle-embedded mesoporous carbon composite in selective isolation/removal of specific protein species from biological sample matrixes.
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Affiliation(s)
- Yang Zhang
- Research Center for Analytical Sciences, Northeastern University , Box 332, Shenyang 110819, China
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25
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Lu H, Huang Y, Yan J, Fan W, Liu T. Nitrogen-doped graphene/carbon nanotube/Co3O4 hybrids: one-step synthesis and superior electrocatalytic activity for the oxygen reduction reaction. RSC Adv 2015. [DOI: 10.1039/c5ra17759f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
N-rGO/CNTs/Co3O4 hybrids were prepared through a simple one-step hydrothermal method, and exhibited comparable electrocatalytic ORR activity to Pt/C catalysts, excellent tolerance to methanol crossover effects, and even better long-term stability.
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Affiliation(s)
- Hengyi Lu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- P. R. China
| | - Yunpeng Huang
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- P. R. China
| | - Jiajie Yan
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- P. R. China
| | - Wei Fan
- State Key Laboratory of Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Tianxi Liu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- P. R. China
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