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Han J, Xu Q, Rong J, Zhao X, She P, Qin JS, Rao H. Molecular Engineering of Porous Fe-N-C Catalyst with Sulfur Incorporation for Boosting CO 2 Reduction and Zn-CO 2 Battery. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2407063. [PMID: 39099335 DOI: 10.1002/advs.202407063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/18/2024] [Indexed: 08/06/2024]
Abstract
Transition metal-nitrogen-carbon (M-N-C) catalysts have emerged as promising candidates for electrocatalytic CO2 reduction reaction (CO2RR) due to their uniform active sites and high atomic utilization rate. However, poor efficiency at low overpotentials and unclear reaction mechanisms limit the application of M-N-C catalysts. In this study, Fe-N-C catalysts are developed by incorporating S atoms onto ordered hierarchical porous carbon substrates with a molecular iron thiophenoporphyrin. The well-prepared FeSNC catalyst exhibits superior CO2RR activity and stability, attributes to an optimized electronic environment, and enhances the adsorption of reaction intermediates. It displays the highest CO selectivity of 94.0% at -0.58 V (versus the reversible hydrogen electrode (RHE)) and achieves the highest partial current density of 13.64 mA cm-2 at -0.88 V. Furthermore, when employed as the cathode in a Zn-CO2 battery, FeSNC achieves a high-power density of 1.19 mW cm-2 and stable charge-discharge cycles. Density functional theory calculations demonstrate that the incorporation of S atoms into the hierarchical porous carbon substrate led to the iron center becoming more electron-rich, consequently improving the adsorption of the crucial reaction intermediate *COOH. This study underscores the significance of hierarchical porous structures and heteroatom doping for advancing electrocatalytic CO2RR and energy storage technologies.
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Affiliation(s)
- Jingwei Han
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, Jilin, 130012, P. R. China
| | - Qiang Xu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, Jilin, 130012, P. R. China
| | - Jiaxin Rong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, Jilin, 130012, P. R. China
| | - Xue Zhao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, Jilin, 130012, P. R. China
| | - Ping She
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, Jilin, 130012, P. R. China
| | - Jun-Sheng Qin
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, Jilin, 130012, P. R. China
| | - Heng Rao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, Jilin, 130012, P. R. China
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Zhang D, Zhang H, Gao F, Huang G, Shang Z, Gao C, Chen X, Wei J, Terrones M, Wang Y. Dual Activation for Tuning N, S Co-Doping in Porous Carbon Sheets Toward Superior Sodium Ion Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308684. [PMID: 38174613 DOI: 10.1002/smll.202308684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/05/2023] [Indexed: 01/05/2024]
Abstract
Porous carbon has been widely focused to solve the problems of low coulombic efficiency (ICE) and low multiplication capacity of Sodium-ion batteries (SIBs) anodes. The superior energy storage properties of two-dimensional(2D) carbon nanosheets can be realized by modulating the structure, but be limited by the carbon sources, making it challenging to obtain 2D structures with large surface area. In this work, a new method for forming carbon materials with high N/S doping content based on combustion activation using the dual activation effect of K2SO4/KNO3 is proposed. The synthesized carbon material as an anode for SIBs has a high reversible capacity of 344.44 mAh g-1 at 0.05 A g-1. Even at the current density of 5 Ag-1, the capacity remained at 143.08 mAh g-1. And the ICE of sodium-ion in ether electrolytes is ≈2.5 times higher than that in ester electrolytes. The sodium storage mechanism of ether/ester-based electrolytes is further explored through ex-situ characterizations. The disparity in electrochemical performance can be ascribed to the discrepancy in kinetics, wherein ether-based electrolytes exhibit a higher rate of Na+ storage and shedding compared to ester-based electrolytes. This work suggests an effective way to develop doubly doped carbon anode materials for SIBs.
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Affiliation(s)
- Dingyue Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Hao Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Fan Gao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Gang Huang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Zhoutai Shang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Caiqin Gao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xianchun Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Jingjiang Wei
- Institute for Advanced Materials Deformation and Damage from Multi-Scale, Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
| | - Mauricio Terrones
- Department of Physics, Department of Chemistry, Department of Materials Science and Engineering and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Yanqing Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
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Bahadur R, Jason J I, Sakamoto Y, Chang S, Yu X, Breese MB, Bhargava SK, Lee JM, Panigrahi P, Vinu A. Nanohybrids of BCN-Fe 1-xS for Sodium and Lithium Hybrid Ion Capacitors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311945. [PMID: 38196051 DOI: 10.1002/smll.202311945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 12/26/2023] [Indexed: 01/11/2024]
Abstract
Hybrid ion capacitors (HIC) are receiving a lot of attention due to their potential to achieve high energy and power densities, but they remain insufficient. It is imperative to explore outstanding and environmentally benign electrode materials to achieve high-performing HIC systems. Here, a unique boron carbon nitride (BCN)-based HIC system that comprises a microporous BCN structure and Fe1-xS nanoparticle incorporated BCN nanosheets (BNF) as cathode and anode, respectively is reported. The BNF is prepared through a facile one-pot calcination process using dithiooxamide (DTO), boric acid, and iron source. In situ, crystal growth of Fe1-xS facilitates the formation of BCN structure through the creation of holes/defects in the polymeric structure. The first principle density functional (DFT) theory simulations demonstrate the structural and electronic properties of the hybrid of BCN and Fe1-xS as compelling anode materials for HIC applications. The DFT calculations reveal that both BCN and BNF structures have excellent metallic characters with Li+ storage capacities of 128.4 and 1021.38 mAh g-1 respectively. These findings are confirmed experimentally where the BCN-based HIC system delivers exceptional energy and power densities of 267.5 Wh kg-1/749.5 W kg-1 toward Li+ storage, which outweighs previous HIC performances and demonstrates favorable performance for Li+ and Na+ storages.
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Affiliation(s)
- Rohan Bahadur
- College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ian Jason J
- Centre for Clean Energy and Nano Convergence, Hindustan Institute of Technology and Science, Chennai, 603103, India
| | - Yasuhiro Sakamoto
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Shery Chang
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
- Electron Microscope Unit, Mark Wainwright Analytical Centre, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Xiaojiang Yu
- Singapore Synchrotron Light Source, National University of Singapore, Singapore, 117603, Singapore
| | - Mark Bh Breese
- Singapore Synchrotron Light Source, National University of Singapore, Singapore, 117603, Singapore
- Department of Physics, National University of Singapore, Singapore, 117542, Singapore
| | - Suresh K Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, Royal Melbourne Institute of Technology (RMIT) University, Melbourne, VIC, 3001, Australia
| | - Jang Mee Lee
- College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, Royal Melbourne Institute of Technology (RMIT) University, Melbourne, VIC, 3001, Australia
| | - Puspamitra Panigrahi
- Centre for Clean Energy and Nano Convergence, Hindustan Institute of Technology and Science, Chennai, 603103, India
| | - Ajayan Vinu
- College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
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Putra RP, Rachman IB, Horino H, Rzeznicka I. γ-NiOOH electrocatalyst derived from a nickel dithiooxamide chelate polymer for oxygen evolution reaction in alkaline solutions. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.08.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Li J, Tang S, Li Z, Wang C, Pan L. Boosting the lithium storage performance by synergistically coupling ultrafine heazlewoodite nanoparticle with N, S co-doped carbon. J Colloid Interface Sci 2021; 604:368-377. [PMID: 34265691 DOI: 10.1016/j.jcis.2021.07.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 12/15/2022]
Abstract
Transition metal sulfides, as an important class of inorganics, have been shown to be potential high-performance electrode candidates for lithium-ion batteries (LIBs) in account of their high activity towards lithium storage, rich types and diverse structures. Despite these advantages, structure degradation related with volume variations upon electrochemical cycling restricts their further development. In this present study, a unique hybrid structure with ultrafine heazlewoodite nanoparticles (less than 10 nm) in-situ confined in nitrogen and sulfur dual-doped carbon (Ni3S2@NSC) was constructed though a facile pyrolysis process, using a novel Ni-based metal chelates as the precursor. Specifically, enhanced structure stability, shortened Li+ migration distance and improved reaction dynamics can be obtained simultaneously in the designed structure, thereby allowing to realize high lithium storage performance. Consequently, a remarkable reversible capacity of 955.9 mAh g-1 (0.1 A g-1 after 100 cycles) and a superior long-term cycling stability up to 1200 cycles (863.7 mAh g-1 at 1.0 A g-1) are obtained. Importantly, the fundamental understanding on the improved lithium storage of Ni3S2@NSC based on the synergistic coupling reveals that the combination between Ni3S2 and NSC at the hetero-interface through the doped sulfur atoms contributes to the integrity of electrode and improved kinetics.
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Affiliation(s)
- Jiabao Li
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou, Jiangsu 225002, China.
| | - Shaocong Tang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou, Jiangsu 225002, China
| | - Ziqian Li
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou, Jiangsu 225002, China
| | - Chengyin Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou, Jiangsu 225002, China.
| | - Likun Pan
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China.
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6
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Song Z, Miao L, Ruhlmann L, Lv Y, Zhu D, Li L, Gan L, Liu M. Self-Assembled Carbon Superstructures Achieving Ultra-Stable and Fast Proton-Coupled Charge Storage Kinetics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2104148. [PMID: 34622501 DOI: 10.1002/adma.202104148] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Designing ingenious and stable carbon nanostructures is critical but still challenging for use in energy storage devices with superior electrochemistry kinetics, durable capacitive activity, and high rate survivability. To pursue the objective, a simple self-assembly strategy is developed to access carbon superstructures built of nanoparticle embedded plates. The carbon precursors, 2,4,6-trichloro-1,3,5-triazine and 2,6-diaminoanthraquinone can form porous organic polymer with "protic salt"-type rigid skeleton linked by -NH2 + Cl- - "rivets", which provides the cornerstone for hydrogen-bonding-guided self-assembly of the organic backbone to superstructures by π-π plane stacking. The ameliorative charge density distribution and decreased adsorption energy in as-fabricated carbon superstructures allow the high accessibility of the build-in protophilic sites and efficient ion diffusion with a low energy barrier. Such superstructures thus deliver ultra-stable charge storage and fast proton-coupled kinetics at the structural-chemical defects, contributing to unprecedented lifespan (1 000 000 cycles), high-rate capability (100 A g-1 ) for carbon-based supercapacitors, and an ultrahigh energy density (128 Wh kg-1 ) for Zn-ion hybrid supercapacitors. The self-assembled carbon superstructures significantly improve the all-round electrochemical performances, and hold great promise for efficient energy storage.
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Affiliation(s)
- Ziyang Song
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Ling Miao
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Laurent Ruhlmann
- Institut de Chimie (UMR CNRS 7177), Université de Strasbourg, 4, rue Blaise Pascal, CS 90032, Strasbourg Cedex, F-67081, France
| | - Yaokang Lv
- Institut de Chimie (UMR CNRS 7177), Université de Strasbourg, 4, rue Blaise Pascal, CS 90032, Strasbourg Cedex, F-67081, France
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Dazhang Zhu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Liangchun Li
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Lihua Gan
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Mingxian Liu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
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7
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Facile in-situ synthesis of heazlewoodite on nitrogen-doped reduced graphene oxide for enhanced sodium storage. J Colloid Interface Sci 2021; 594:35-46. [PMID: 33756366 DOI: 10.1016/j.jcis.2021.03.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 01/14/2023]
Abstract
Nickel sulfide based anode materials, featuring rich types, high specific capacities and favorable conversion kinetics, have been proved to be promisingly applied in high-performance sodium-ion batteries (SIBs). Unfortunately, the poor electronic/ionic conductivity, together with the structure change induced degraded capacity upon cycling, restricts their further development. In this work, heazlewoodite nanoparticles decorated on nitrogen doped reduced graphene oxide (Ni3S2/NrGO) were fabricated via a facile combined approach with freeze-drying and subsequent in-situ sulfidation. In the obtained hybrid structure, the synergistic effect between Ni3S2 and NrGO endows the composite with highly conductive pathways, thus accelerating the charge transfer. Benefitting from the buffering matrix offered by NrGO as well as the tight combination between Ni3S2 and NrGO, this novel Ni3S2/NrGO demonstrates satisfying sodium storage performance, with a stable reversible capacity of 299.2 mAh g-1 up to 100 cycles (0.1 A g-1) and a high initial Coulombic efficiency of 76.8%. Importantly, the rational structure design and synthesis method, as well as the insights on the improved electrochemical performance reported in this work, should be helpful for the development of new-type host materials with high performance for SIBs.
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8
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Xie S, Li L, Chen Y, Fan J, Li Q, Min Y, Xu Q. Folic Acid Coordinated Cu-Co Site N-Doped Carbon Nanosheets for Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3949-3958. [PMID: 33428847 DOI: 10.1021/acsami.0c19124] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The design and development of carbon materials with high-efficiency oxygen reduction activity is still a problem. Folic acid (FA) has unique structural characteristics, and it can provide multiple coordination sites for metal ions. Here, folic acid (FA) was used as a metal complex ligand, and Cu-Co-based N-doped porous carbon nanosheets (Cu-CoNCNs) were synthesized by the solvothermal method, the molten salt template-assisted calcination method, and the chemical etching method. The Cu-CoNCNs synthesized by this method have highly efficient oxygen reduction reaction (ORR) activity. In 0.1 mol/L KOH electrolytes, the catalyst exhibits excellent ORR activity and has a fairly high half-wave potential (0.905 V vs reversible hydrogen electrode (RHE)). X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, infrared spectroscopy, and X-ray diffraction (XRD) were used to investigate the reasons why the catalyst has excellent catalytic activity and long-life stability. It was proved that the impressive ORR activity of Cu-CoNCNs comes from Cu doping, which can regulate the surface electronic structure of the catalyst, thereby optimizing the binding ability between the intermediate and adsorbed species and improving the catalytic activity.
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Affiliation(s)
- Shengnan Xie
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 2588 Changyang Road, Yangpu District, Shanghai 200090, China
| | - Linke Li
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 2588 Changyang Road, Yangpu District, Shanghai 200090, China
| | - Yi Chen
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 2588 Changyang Road, Yangpu District, Shanghai 200090, China
| | - Jinchen Fan
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 2588 Changyang Road, Yangpu District, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Qiaoxia Li
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 2588 Changyang Road, Yangpu District, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Yulin Min
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 2588 Changyang Road, Yangpu District, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Qunjie Xu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 2588 Changyang Road, Yangpu District, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
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9
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Xie Z, Chen B, Zheng L, Peng F, Liu H, Han B. Monomeric vanadium oxide: a very efficient species for promoting aerobic oxidative dehydrogenation of N-heterocycles. NEW J CHEM 2021. [DOI: 10.1039/d0nj04708b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The isolated monomeric VO4 species, controlled by natural ligand tartaric acid, in the VOx/NbOy@C catalysts exhibited excellent performances and good recyclability in the dehydrogenation of N-heterocycles.
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Affiliation(s)
- Zhenbing Xie
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Lirong Zheng
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Fangfang Peng
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
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Kim S, Cha W, Ramadass K, Singh G, Kim IY, Vinu A. Single-Step Synthesis of Mesoporous Carbon Nitride/Molybdenum Sulfide Nanohybrids for High-Performance Sodium-Ion Batteries. Chem Asian J 2020; 15:1863-1868. [PMID: 32329239 DOI: 10.1002/asia.202000349] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/21/2020] [Indexed: 11/10/2022]
Abstract
Molybdenum disulfide (MoS2 ) is a promising candidate as a high-performing anode material for sodium-ion batteries (SIBs) due to its large interlayer spacing. However, it suffers from continued capacity fading. This problem could be overcome by hybridizing MoS2 with nanostructured carbon-based materials, but it is quite challenging. Herein, we demonstrate a single-step strategy for the preparation of MoS2 coupled with ordered mesoporous carbon nitride using a nanotemplating approach which involves the pyrolysis of phosphomolybdic acid hydrate (PMA), dithiooxamide (DTO) and 5-amino-1H-tetrazole (5-ATTZ) together in the porous channels of 3D mesoporous silica template. The sulfidation to MoS2 , polymerization to carbon nitride (CN) and their hybridization occur simultaneously within a mesoporous silica template during a calcination process. The CN/MoS2 hybrid prepared by this unique approach is highly pure and exhibits good crystallinity as well as delivers excellent performance for SIBs with specific capacities of 605 and 431 mAhg-1 at current densities of 100 and 1000 mAg-1 , respectively, for SIBs.
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Affiliation(s)
- Sungho Kim
- Global Innovative Center for Advanced Nanomaterials (GICAN) School of Engineering Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Wangsoo Cha
- Global Innovative Center for Advanced Nanomaterials (GICAN) School of Engineering Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Kavitha Ramadass
- Global Innovative Center for Advanced Nanomaterials (GICAN) School of Engineering Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Gurwinder Singh
- Global Innovative Center for Advanced Nanomaterials (GICAN) School of Engineering Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - In Young Kim
- Global Innovative Center for Advanced Nanomaterials (GICAN) School of Engineering Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Ajayan Vinu
- Global Innovative Center for Advanced Nanomaterials (GICAN) School of Engineering Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
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11
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Jia Y, Xiong X, Wang D, Duan X, Sun K, Li Y, Zheng L, Lin W, Dong M, Zhang G, Liu W, Sun X. Atomically Dispersed Fe-N 4 Modified with Precisely Located S for Highly Efficient Oxygen Reduction. NANO-MICRO LETTERS 2020; 12:116. [PMID: 34138133 PMCID: PMC7770948 DOI: 10.1007/s40820-020-00456-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/28/2020] [Indexed: 05/28/2023]
Abstract
Immobilizing metal atoms by multiple nitrogen atoms has triggered exceptional catalytic activity toward many critical electrochemical reactions due to their merits of highly unsaturated coordination and strong metal-substrate interaction. Herein, atomically dispersed Fe-NC material with precise sulfur modification to Fe periphery (termed as Fe-NSC) was synthesized, X-ray absorption near edge structure analysis confirmed the central Fe atom being stabilized in a specific configuration of Fe(N3)(N-C-S). By enabling precisely localized S doping, the electronic structure of Fe-N4 moiety could be mediated, leading to the beneficial adjustment of absorption/desorption properties of reactant/intermediate on Fe center. Density functional theory simulation suggested that more negative charge density would be localized over Fe-N4 moiety after S doping, allowing weakened binding capability to *OH intermediates and faster charge transfer from Fe center to O species. Electrochemical measurements revealed that the Fe-NSC sample exhibited significantly enhanced oxygen reduction reaction performance compared to the S-free Fe-NC material (termed as Fe-NC), showing an excellent onset potential of 1.09 V and half-wave potential of 0.92 V in 0.1 M KOH. Our work may enlighten relevant studies regarding to accessing improvement on the catalytic performance of atomically dispersed M-NC materials by managing precisely tuned local environments of M-Nx moiety.
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Affiliation(s)
- Yin Jia
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Xuya Xiong
- Interdisciplinary Nanoscience Center (INANO), Sino-Danish Center for Education and Research (SDC), Aarhus University, 8000, Aarhus C, Denmark
| | - Danni Wang
- Shandong University of Science and Technology, Electrical Engineering and Automation, Tsingtao, 266590, People's Republic of China
| | - Xinxuan Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Kai Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
- Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Yajie Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Wenfeng Lin
- Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center (INANO), Sino-Danish Center for Education and Research (SDC), Aarhus University, 8000, Aarhus C, Denmark
| | - Guoxin Zhang
- Shandong University of Science and Technology, Electrical Engineering and Automation, Tsingtao, 266590, People's Republic of China.
| | - Wen Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
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12
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Guo Y, Tang J, Henzie J, Jiang B, Xia W, Chen T, Bando Y, Kang YM, Hossain MSA, Sugahara Y, Yamauchi Y. Mesoporous Iron-doped MoS 2/CoMo 2S 4 Heterostructures through Organic-Metal Cooperative Interactions on Spherical Micelles for Electrochemical Water Splitting. ACS NANO 2020; 14:4141-4152. [PMID: 32191030 DOI: 10.1021/acsnano.9b08904] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mesoporous metal sulfide hybrid (meso-MoS2/CoMo2S4) materials via a soft-templating approach using diblock copolymer polystyrene-block-poly(acrylic acid) micelles are reported. The formation of the meso-MoS2/CoMo2S4 heterostructures is based on the sophisticated coassembly of dithiooxamide and metal precursors (i.e., Co2+, PMo12), which are subsequently annealed in nitrogen atmosphere to generate the mesoporous material. Decomposing the polymer leaves behind mesopores throughout the spherical MoS2/CoMo2S4 hybrid particles, generating numerous electrochemical active sites in a network of pores that enable faster charge transfer and mass/gas diffusion that enhance the electrocatalytic performance of MoS2/CoMo2S4. Doping the spherical meso-MoS2/CoMo2S4 heterostructures with iron improves the electronic properties of the hybrid meso-Fe-MoS2/CoMo2S4 material and consequently results in its superior electrochemical activities for both hydrogen evolution reaction and oxygen evolution reaction.
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Affiliation(s)
- Yanna Guo
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Jing Tang
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane 4072, QLD, Australia
| | - Joel Henzie
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan
| | - Bo Jiang
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan
| | - Wei Xia
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan
| | - Tao Chen
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yoshio Bando
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan
| | - Yong-Mook Kang
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, Republic of Korea
| | - Md Shahriar A Hossain
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane 4072, QLD, Australia
| | - Yoshiyuki Sugahara
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Yusuke Yamauchi
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane 4072, QLD, Australia
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
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13
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Mu J, Li Q, Kong X, Wu X, Sunarso J, Zhao Y, Zhou J, Zhuo S. Characterization of Hierarchical Porous Carbons Made from Bean Curd via K
2
CO
3
Activation as a Supercapacitor Electrode. ChemElectroChem 2019. [DOI: 10.1002/celc.201900962] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiahui Mu
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255049 China
| | - Qiang Li
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255049 China
| | - Xiangjin Kong
- School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252000 China
| | - Xiaozhong Wu
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255049 China
| | - Jaka Sunarso
- Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and ScienceSwinburne University of Technology, Jalan Simpang Tiga 93350 Kuching, Sarawak Malaysia
| | - Yi Zhao
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255049 China
| | - Jin Zhou
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255049 China
| | - Shuping Zhuo
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255049 China
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14
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Ren QQ, Yu FD, Zhang SW, Yin BS, Wang ZB, Ke K. Enhanced electrochemical performance by size-dependent SEI layer reactivation of NiCo2O4 anodes for lithium ion batteries. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.061] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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15
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Li J, Li J, Chen T, Lu T, Mai W, Pan L. Metal chelate induced in situ wrapping of Ni3S2 nanoparticles into N, S-codoped carbon networks for highly efficient sodium storage. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01326h] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Metal-dithiooxamide chelate derived Ni3S2 nanoparticles wrapped in N, S codoped carbon networks exhibit excellent sodium storage performance.
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Affiliation(s)
- Jiabao Li
- Shanghai Key Laboratory of Magnetic Resonance
- School of Physics and Materials Science
- East China Normal University
- Shanghai 200062
- China
| | - Jinliang Li
- Siyuan Laboratory
- Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials
- Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials
- Department of Physics
- Jinan University
| | - Taiqiang Chen
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200438
- China
| | - Ting Lu
- Shanghai Key Laboratory of Magnetic Resonance
- School of Physics and Materials Science
- East China Normal University
- Shanghai 200062
- China
| | - Wenjie Mai
- Siyuan Laboratory
- Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials
- Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials
- Department of Physics
- Jinan University
| | - Likun Pan
- Shanghai Key Laboratory of Magnetic Resonance
- School of Physics and Materials Science
- East China Normal University
- Shanghai 200062
- China
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16
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Liu Y, Zhang L, Wang H, Yu C, Yan X, Liu Q, Xu B, Wang LM. Synthesis of severe lattice distorted MoS2 coupled with hetero-bonds as anode for superior lithium-ion batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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17
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Strauss V, Marsh K, Kowal MD, El-Kady M, Kaner RB. A Simple Route to Porous Graphene from Carbon Nanodots for Supercapacitor Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1704449. [PMID: 29318674 DOI: 10.1002/adma.201704449] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 11/16/2017] [Indexed: 05/22/2023]
Abstract
A facile method to convert biomolecule-based carbon nanodots (CNDs) into high-surface-area 3D-graphene networks with excellent electrochemical properties is presented. Initially, CNDs are synthesized by microwave-assisted thermolysis of citric acid and urea according to previously published protocols. Next, the CNDs are annealed up to 400 °C in a tube furnace in an oxygen-free environment. Finally, films of the thermolyzed CNDs are converted into open porous 3D turbostratic graphene (3D-ts-graphene) networks by irradiation with an infrared laser. Based upon characterizations using scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and Raman spectroscopy, a feasible reaction mechanism for both the thermolysis of the CNDs and the subsequent laser conversion into 3D-ts-graphene is presented. The 3D-ts-graphene networks show excellent morphological properties, such as a hierarchical porous structure and a high surface area, as well as promising electrochemical properties. For example, nearly ideal capacitive behavior with a volumetric capacitance of 27.5 mF L-1 is achieved at a current density of 560 A L-1 , which corresponds to an energy density of 24.1 mWh L-1 at a power density of 711 W L-1 . Remarkable is the extremely fast charge-discharge cycling rate with a time constant of 3.44 ms.
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Affiliation(s)
- Volker Strauss
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
- Department of Materials Science and Engineering, UCLA, Los Angeles, CA, 90095, USA
| | - Kris Marsh
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
- Department of Materials Science and Engineering, UCLA, Los Angeles, CA, 90095, USA
| | - Matthew D Kowal
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
- Department of Materials Science and Engineering, UCLA, Los Angeles, CA, 90095, USA
| | - Maher El-Kady
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
- Department of Materials Science and Engineering, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Richard B Kaner
- Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
- Department of Materials Science and Engineering, UCLA, Los Angeles, CA, 90095, USA
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18
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Hao GP, Tang C, Zhang E, Zhai P, Yin J, Zhu W, Zhang Q, Kaskel S. Thermal Exfoliation of Layered Metal-Organic Frameworks into Ultrahydrophilic Graphene Stacks and Their Applications in Li-S Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1702829. [PMID: 28782848 DOI: 10.1002/adma.201702829] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 06/14/2017] [Indexed: 06/07/2023]
Abstract
2D nanocarbon-based materials with controllable pore structures and hydrophilic surface show great potential in electrochemical energy storage systems including lithium sulfur (Li-S) batteries. This paper reports a thermal exfoliation of metal-organic framework crystals with intrinsic 2D structure into multilayer graphene stacks. This family of nanocarbon stacks is composed of well-preserved 2D sheets with highly accessible interlayer macropores, narrowly distributed 7 Å micropores, and ever most polar pore walls. The surface polarity is quantified both by its ultrahigh water vapor uptake of 14.3 mmol g-1 at low relative pressure of P/P0 = 0.4 and ultrafast water wetting capability in less than 10.0 s. Based on the structural merits, this series hydrophilic multilayer graphene stack is showcased as suitable model cathode host for unveiling the challenging surface chemistry issue in Li-S batteries.
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Affiliation(s)
- Guang-Ping Hao
- Department of Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
- School of Physics & Astronomy and National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK
| | - Cheng Tang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - En Zhang
- Department of Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Peiyan Zhai
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
- Department of Chemical Engineering, Qufu Normal University, Shandong, 273165, P. R. China
| | - Jun Yin
- School of Physics & Astronomy and National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK
| | - Wancheng Zhu
- Department of Chemical Engineering, Qufu Normal University, Shandong, 273165, P. R. China
| | - Qiang Zhang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Stefan Kaskel
- Department of Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
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19
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Kim G, Yang J, Nakashima N, Shiraki T. Highly Microporous Nitrogen-doped Carbon Synthesized from Azine-linked Covalent Organic Framework and its Supercapacitor Function. Chemistry 2017; 23:17504-17510. [DOI: 10.1002/chem.201702805] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Gayoung Kim
- Department of Applied Chemistry, Graduate School of Engineering; Kyushu University; 744 Motooka Nishi-ku, Fukuoka 819-0395 Japan
| | - Jun Yang
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER); Kyushu University; 744 Motooka Nishi-ku, Fukuoka 819-0395 Japan
| | - Naotoshi Nakashima
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER); Kyushu University; 744 Motooka Nishi-ku, Fukuoka 819-0395 Japan
| | - Tomohiro Shiraki
- Department of Applied Chemistry, Graduate School of Engineering; Kyushu University; 744 Motooka Nishi-ku, Fukuoka 819-0395 Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER); Kyushu University; 744 Motooka Nishi-ku, Fukuoka 819-0395 Japan
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20
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Wang P, Tian J, Hu J, Zhou X, Li C. Supernormal Conversion Anode Consisting of High-Density MoS 2 Bubbles Wrapped in Thin Carbon Network by Self-Sulfuration of Polyoxometalate Complex. ACS NANO 2017; 11:7390-7400. [PMID: 28661129 DOI: 10.1021/acsnano.7b03665] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Large-capacity conversion electrodes are highly required to raise the energy density of batteries. However, their undesired phase segregation and volume expansion during cycling lead to the motivation for nanofabrication and nanochemistry of active species in order to decrease "dead mass" and promote better construction of conductive networks. However, the inactivity of the conductive skeleton and loose nanostructure would compromise the energy density of the electrode. The integration of large-sized (high-density) grains into an electroactive conductive network in a compact way is still a big challenge. Here we report a proof-of-concept prototype consisting of unusual MoS2 solid bubbles of hundreds of nanometers in size, which are conformally encapsulated by thin-layer carbon. The seamless welding between this carbon coating and the surrounding broader carbon substrate can effectively avoid the peel-off of active species and breakage of the conductive network. This MoS2-C composite is achieved by simultaneous self-sulfuration and self-carbonization of a polyoxometalate (POM)-based chelate, and its Li-storage performance is superior to most MoS2-based anodes even with ultrathin 2D nanosheets. Partially benefiting from the electroactivity of a dithiooxamide (DTO)-derivate carbon network, the reversible capacity of MoS2-C by pyrolyzing the POM-DTO chelate can reach 1500-2000 mAh/g at 0.5-1 A/g even after 700 cycles and be maintained around 1000 mAh/g under as high as 10-20 A/g.
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Affiliation(s)
- Peiyuan Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding Xi Road, Shanghai 200050, China
| | - Jing Tian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding Xi Road, Shanghai 200050, China
- University of Chinese Academy of Sciences , Beijing 100039, China
| | - Jiulin Hu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding Xi Road, Shanghai 200050, China
- University of Chinese Academy of Sciences , Beijing 100039, China
| | - Xuejun Zhou
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding Xi Road, Shanghai 200050, China
| | - Chilin Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding Xi Road, Shanghai 200050, China
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21
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Sulfur-Doped Carbon Nitride Polymers for Photocatalytic Degradation of Organic Pollutant and Reduction of Cr(VI). Molecules 2017; 22:molecules22040572. [PMID: 28368315 PMCID: PMC6154601 DOI: 10.3390/molecules22040572] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 03/29/2017] [Accepted: 03/29/2017] [Indexed: 01/24/2023] Open
Abstract
As a promising conjugated polymer, binary carbon nitride has attracted extensive attention as a metal-free and visible-light-responsive photocatalyst in the area of photon-involving purification of water and air. Herein, we report sulfur-doped polymeric carbon nitride microrods that are synthesized through thermal polymerization based on trithiocyanuric acid and melamine (TM) supramolecular aggregates. By tuning the polymerization temperature, a series of sulfur-doped carbon nitride microrods are prepared. The degradation of Rhodamine B (RhB) and the reduction of hexavalent chromium Cr(VI) are selected as probe reactions to evaluate the photocatalytic activities. Results show that increasing pyrolysis temperature leads to a large specific surface area, strong visible-light absorption, and accelerated electron-hole separation. Compared to bulk carbon nitride, the highly porous sulfur-doped carbon nitride microrods fabricated at 650 °C exhibit remarkably higher photocatalytic activity for degradation of RhB and reduction of Cr(VI). This work highlights the importance of self-assembly approach and temperature-control strategy in the synthesis of photoactive materials for environmental remediation.
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22
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Huang L, Lei Z, Huang T, Zhou Y, Bai Y. "Installation art"-like hierarchical self-assembly of giant polymeric elliptical platelets. NANOSCALE 2017; 9:2145-2149. [PMID: 28127609 DOI: 10.1039/c6nr09379e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper reports the aqueous self-assembly of giant elliptical platelets over 20 μm in axial length, from a novel polyamide. Both the self-assembly pathway and mechanism were studied using morphology and X-ray characterizations. The polymer first self-organizes into small quadrangular frustum pyramid platelets, and then these small platelets can be further installed into giant elliptical platelets through an "installation art"-like hierarchical self-assembly process driven by crystallization. The as-prepared regular giant platelets can further aggregate together into multi-horned or flower-like superstructures.
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Affiliation(s)
- Lei Huang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Zuotao Lei
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Tong Huang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Yongping Bai
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China.
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23
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Chen B, Li F, Mei Q, Yang Y, Liu H, Yuan G, Han B. Synthesis of nitrogen and sulfur co-doped hierarchical porous carbons and metal-free oxidative coupling of silanes with alcohols. Chem Commun (Camb) 2017; 53:13019-13022. [DOI: 10.1039/c7cc07931a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hierarchically porous N and S co-doped carbon was used as an efficient and robust metal-free catalyst for oxidative coupling of silanes with alcohols.
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Affiliation(s)
- Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Fengbo Li
- CAS Key Laboratory of Green Printing
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Qingqing Mei
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Youdi Yang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Guoqing Yuan
- CAS Key Laboratory of Green Printing
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
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