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Wei Z, Ding T, Bai C, Zhang R, Yang S, Wei W. Upscaling Brønsted acid intercalation and exfoliation of graphite into graphene by polyoxometalate clusters for sodium-ion battery application. J Colloid Interface Sci 2024; 676:158-167. [PMID: 39024816 DOI: 10.1016/j.jcis.2024.07.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 07/01/2024] [Accepted: 07/07/2024] [Indexed: 07/20/2024]
Abstract
Non-oxidative intercalation of graphite avoids damage to graphene lattices and is a suitable method to produce high-quality graphene. However, the yield of exfoliated graphene is low in this process due to the poor delamination efficiency of guest species. In this study, a Brønsted acid intercalation protocol is developed involving polyoxometalate (POM) clusters (H6P2W18O62) as guests and intercalation of graphite is realized at the sub-nanometer scale. Theoretical simulation based on DFT elucidates the stepwise intercalation mechanism of Brønsted acid molecules and clusters. Unlike common molecules/ionic guests, intercalation of POM clusters induces large expansion and extensive donor-acceptor interactions among graphite interlayers. This significantly weakens the van der Waals forces and promotes exfoliation efficiency of graphene layers. The exfoliated graphene possesses outstanding features of large lateral size, thin thickness, and high purity, and shows excellent performance as the anode for high power sodium-ion batteries. This work proffers a new pathway toward non-oxidative intercalation of graphite for large-scale production of graphene.
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Affiliation(s)
- Zhengyu Wei
- Department of Applied Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Tianyi Ding
- Department of Applied Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Caihe Bai
- Department of Applied Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Ruisheng Zhang
- School of Physics, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Sen Yang
- School of Physics, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Wei Wei
- Department of Applied Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, PR China.
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2
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Xiao H, Bai M, Zhao M, Fu Z, Wang W, Zhao P, Ma J, Zhang L, Zhang J, He Y, Zhang J, Jia J. Interfacial carbon dots introduced distribution-structure modulation of Pt loading on graphene towards enhanced electrocatalytic hydrogen evolution reaction. J Colloid Interface Sci 2023; 656:214-224. [PMID: 37989054 DOI: 10.1016/j.jcis.2023.11.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/12/2023] [Accepted: 11/16/2023] [Indexed: 11/23/2023]
Abstract
To easily load Pt on smoothy graphene synthesized by cathodic exfoliation method and achieve adjacent plane distribution of Pt, carbon dots (CDs) are used to construct anchoring points to load highly dispersed Pt species due to strong interaction between CDs and Pt species. The composite of Pt-CDs/graphene is synthesized via a continuous process of cathodic exfoliation-hydrothermal-impregnation-reduction. Characterization results indicate the distribution configuration of Pt varies from coated structure of CDs@Pt to dispersed configuration of CDs&Pt or Pt&CDs, then to wrapping configuration of Pt@CDs with increased amount of CDs. It's found that suitable introduction of CDs promotes the adjacent plane distribution of Pt species. The obtained best Pt-4CDs/G shows the low overpotential of 36 mV (10 mA⋅cm-2) and high mass activity of 3747.8 mA mg-1 at -40 mV towards electrocatalytic hydrogen evolution reaction (HER), 9.2 times more active than that of Pt/C (406.2 mA mg-1). The superior HER performance of Pt-4CDs/G is attributed to its relatively adjacent plane distribution of Pt, which supports high electrochemically active surface area and more adjacent Pt sites for H* adsorption. Benefitting from that, the HER process for Pt-4CDs/G favorably follows the Tafel pathway, resulting in low hydrogen adsorption free energy and excellent HER activity.
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Affiliation(s)
- He Xiao
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Meng Bai
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Man Zhao
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China.
| | - Zimei Fu
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Wenxiang Wang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Peipei Zhao
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Jiamin Ma
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Li Zhang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Junming Zhang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China
| | - Yingluo He
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Jian Zhang
- State Key Laboratory of Solidification Processing and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
| | - Jianfeng Jia
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030000, China.
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3
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Reddy YVM, Shin JH, Palakollu VN, Sravani B, Choi CH, Park K, Kim SK, Madhavi G, Park JP, Shetti NP. Strategies, advances, and challenges associated with the use of graphene-based nanocomposites for electrochemical biosensors. Adv Colloid Interface Sci 2022; 304:102664. [PMID: 35413509 DOI: 10.1016/j.cis.2022.102664] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/18/2022] [Accepted: 04/04/2022] [Indexed: 12/29/2022]
Abstract
Graphene is an intriguing two-dimensional honeycomb-like carbon material with a unique basal plane structure, charge carrier mobility, thermal conductivity, wide electrochemical spectrum, and unusual physicochemical properties. Therefore, it has attracted considerable scientific interest in the field of nanoscience and bionanotechnology. The high specific surface area of graphene allows it to support high biomolecule loading for good detection sensitivity. As such, graphene, graphene oxide (GO), and reduced GO are excellent materials for the fabrication of new nanocomposites and electrochemical sensors. Graphene has been widely used as a chemical building block and/or scaffold with various materials to create highly sensitive and selective electrochemical sensing microdevices. Over the past decade, significant advancements have been made by utilizing graphene and graphene-based nanocomposites to design electrochemical sensors with enhanced analytical performance. This review focus on the synthetic strategies, as well as the structure-to-function studies of graphene, electrochemistry, novel multi nanocomposites combining graphene, limit of detection, stability, sensitivity, assay time. Finally, the review describes the challenges, strategies and outlook on the future development of graphene sensors technology that would be usable for the internet of things are also highlighted.
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Muduli S, Pappu S, Bulusu SV, Rao TN, Martha SK. Electrochemically Exfoliated Layered Carbons as Sustainable Anode Materials for Lead Carbon Hybrid Ultracapacitor. ChemElectroChem 2022. [DOI: 10.1002/celc.202200230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sadananda Muduli
- Indian Institute of Technology Hyderabad Department of Chemistry 502285 Hyderabad INDIA
| | - Samhita Pappu
- Indian Institute of Technology Hyderabad Department of Chemistry INDIA
| | - Sarada V Bulusu
- International Advanced Research Centre for Powder Metallurgy and New Materials Center for Nanomaterials INDIA
| | - Tata N Rao
- International Advanced Research Centre for Powder Metallurgy and New Materials Center for Nanomaterials INDIA
| | - Surendra Kumar Martha
- Indian Institute of Technology Hyderabad Chemistry IITHDepartment of chemistryKandiSangareddy 502284 sangareddy INDIA
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Abdelhalim AO, Semenov KN, Nerukh DA, Murin IV, Maistrenko DN, Molchanov OE, Sharoyko VV. Functionalisation of graphene as a tool for developing nanomaterials with predefined properties. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Fan Q, Miao J, Liu X, Zuo X, Zhang W, Tian M, Zhu S, Qu L, Zhang X. Biomimetic Hierarchically Silver Nanowire Interwoven MXene Mesh for Flexible Transparent Electrodes and Invisible Camouflage Electronics. NANO LETTERS 2022; 22:740-750. [PMID: 35019663 DOI: 10.1021/acs.nanolett.1c04185] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Flexible transparent electrodes demand high transparency, low sheet resistance, as well as excellent mechanical flexibility simultaneously, however they still remain to be a great challenge due to"trade-off" effect. Herein, inspired by a hollow interconnected leaf vein, we developed robust transparent conductive mesh with biomimetic interwoven structure via hierarchically self-assembles silver nanowires interwoven metal carbide/nitride (MXene) sheets along directional microfibers. Strong interfacial interactions between plant fibers and conductive units facilitate hierarchically interwoven conductive mesh constructed orderly on flexible and lightweight veins while maintaining high transparency, effectively avoiding the trade-off effect between optoelectronic properties. The flexible transparent electrodes exhibit sheet resistance of 0.5 Ω sq-1 and transparency of 81.6%, with a remarkably high figure of merit of 3523. In addition, invisible camouflage sensors are further successfully developed as a proof of concept that could monitor human body motion signals in an imperceptible state. The flexible transparent conductive mesh holds great potential in high-performance wearable optoelectronics and camouflage electronics.
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Affiliation(s)
- Qiang Fan
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Jinlei Miao
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Xuhua Liu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Xingwei Zuo
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Wenxiao Zhang
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Mingwei Tian
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Shifeng Zhu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Lijun Qu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
| | - Xueji Zhang
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P.R. China
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, P.R. China
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7
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Stable and boosted oxygen evolution efficiency of mixed metal oxide and borate planner heterostructure over heteroatom (N) doped electrochemically exfoliated graphite foam. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Nguyen DD, Lim T, Lim S, Suk JW. Interlayer Separation in Graphene Paper Comprising Electrochemically Exfoliated Graphene. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:865. [PMID: 33805258 PMCID: PMC8066209 DOI: 10.3390/nano11040865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 11/16/2022]
Abstract
The emergence of graphene paper comprising well-stacked graphene flakes has promoted the application of graphene-based materials in diverse fields such as energy storage devices, membrane desalination, and actuators. The fundamental properties of graphene paper such as mechanical, electrical, and thermal properties are critical to the design and fabrication of paper-based devices. In this study, the interlayer interactions in graphene paper were investigated by double cantilever beam (DCB) fracture tests. Graphene papers fabricated by flow-directed stacking of electrochemically exfoliated few-layer graphene flakes were mechanically separated into two parts, which generated force-displacement responses of the DCB sample. The analysis based on fracture mechanics revealed that the interlayer separation energy of the graphene paper was 9.83 ± 0.06 J/m2. The results provided a fundamental understanding of the interfacial properties of graphene papers, which will be useful for developing paper-based devices with mechanical integrity.
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Affiliation(s)
- Dang Du Nguyen
- School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Gyeonggi-do, Korea; (D.D.N.); (T.L.); (S.L.)
| | - TaeGyeong Lim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Gyeonggi-do, Korea; (D.D.N.); (T.L.); (S.L.)
| | - Soomook Lim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Gyeonggi-do, Korea; (D.D.N.); (T.L.); (S.L.)
| | - Ji Won Suk
- School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Gyeonggi-do, Korea; (D.D.N.); (T.L.); (S.L.)
- Department of Smart Fab. Technology, Sungkyunkwan University, Suwon 16419, Gyeonggi-do, Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Gyeonggi-do, Korea
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9
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Abdillah OB, Floweri O, Mayangsari TR, Santosa SP, Ogi T, Iskandar F. Effect of H 2SO 4/H 2O 2 pre-treatment on electrochemical properties of exfoliated graphite prepared by an electro-exfoliation method. RSC Adv 2021; 11:10881-10890. [PMID: 35423549 PMCID: PMC8695883 DOI: 10.1039/d0ra10115j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/08/2021] [Indexed: 11/21/2022] Open
Abstract
The effect of pre-treating graphite sheets in a H2SO4/H2O2 solution before electro-exfoliation is reported. It was revealed that the volume fraction of H2SO4 to H2O2 during pre-treatment could control the degree of exfoliation of the resulting exfoliated graphite (EG). X-ray diffraction (XRD), Raman, and Fourier transform infrared (FTIR) spectroscopy analyses have suggested that EG produced by first pre-treating the graphite sheet in H2SO4/H2O2 solution with the H2SO4 : H2O2 volume fraction of 95 : 5 demonstrates the highest exfoliation degree. This sample also demonstrated excellent electrochemical properties with good electrical conductivity (36.22 S cm-1) and relatively low charge transfer resistance (R ct) of 21.35 Ω. This sample also showed the highest specific capacitance of all samples, i.e., 71.95 F g-1 at 1 mV s-1 when measured at a voltage range of -0.9 to 0 V. Further measurement at an extended potential window down to -1.4 V revealed the superior specific capacitance value of 150.69 F g-1. The superior morphology characteristics and the excellent electrical properties of the obtained EG are several reasons behind its exceptional properties. The pre-treatment of graphite sheets in H2SO4/H2O2 solution allegedly leads to easier and faster exfoliation. The faster exfoliation is allegedly able to prevent massive oxidation, which frequently induces the formation of graphite/graphene oxide (GO) in a prolonged process. However, too large H2O2 volume fraction involved during pre-treatment seems to cause excessive expansion and frail structure of the graphite sheets, which leads to an early breakdown of the structure during electrochemical exfoliation and prohibits layer by layer exfoliation.
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Affiliation(s)
- Oktaviardi Bityasmawan Abdillah
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
| | - Octia Floweri
- Research Center for Nanosciences and Nanotechnology (RCNN), Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
| | - Tirta Rona Mayangsari
- Department of Chemistry, Universitas Pertamina Jl. Teuku Nyak Arief, Simprug Jakarta 12220 Indonesia
| | - Sigit Puji Santosa
- National Center for Sustainable Transportation Technology (NCSTT), Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
| | - Takashi Ogi
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Hiroshima 739-8527 Japan
| | - Ferry Iskandar
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
- Research Center for Nanosciences and Nanotechnology (RCNN), Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
- National Center for Sustainable Transportation Technology (NCSTT), Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
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10
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Komoda M, Nishina Y. Electrochemical Production of Graphene Analogs from Various Graphite Materials. CHEM LETT 2021. [DOI: 10.1246/cl.200780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Masato Komoda
- Research Core for Interdisciplinary Sciences, Okayama University, Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yuta Nishina
- Research Core for Interdisciplinary Sciences, Okayama University, Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
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Pei J, Zhang T, Suo H. Graphene preparation and process parameters by pre-intercalation assisted electrochemical exfoliation of graphite. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-04899-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Graphene to Advanced MoS2: A Review of Structure, Synthesis, and Optoelectronic Device Application. CRYSTALS 2020. [DOI: 10.3390/cryst10100902] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In contrast to zero-dimensional (0D), one-dimensional (1D), and even their bulk equivalents, in two-dimensional (2D) layered materials, charge carriers are confined across thickness and are empowered to move across the planes. The features of 2D structures, such as quantum confinement, high absorption coefficient, high surface-to-volume ratio, and tunable bandgap, make them an encouraging contestant in various fields such as electronics, energy storage, catalysis, etc. In this review, we provide a gentle introduction to the 2D family, then a brief description of transition metal dichalcogenides (TMDCs), mainly focusing on MoS2, followed by the crystal structure and synthesis of MoS2, and finally wet chemistry methods. Later on, applications of MoS2 in dye-sensitized, organic, and perovskite solar cells are discussed. MoS2 has impressive optoelectronic properties; due to the fact of its tunable work function, it can be used as a transport layer, buffer layer, and as an absorber layer in heterojunction solar cells. A power conversion efficiency (PCE) of 8.40% as an absorber and 13.3% as carrier transfer layer have been reported for MoS2-based organic and perovskite solar cells, respectively. Moreover, MoS2 is a potential replacement for the platinum counter electrode in dye-sensitized solar cells with a PCE of 7.50%. This review also highlights the incorporation of MoS2 in silicon-based heterostructures where graphene/MoS2/n-Si-based heterojunction solar cell devices exhibit a PCE of 11.1%.
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Kapoor S, Jha A, Ahmad H, Islam SS. Avenue to Large-Scale Production of Graphene Quantum Dots from High-Purity Graphene Sheets Using Laboratory-Grade Graphite Electrodes. ACS OMEGA 2020; 5:18831-18841. [PMID: 32775885 PMCID: PMC7408250 DOI: 10.1021/acsomega.0c01993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/09/2020] [Indexed: 05/24/2023]
Abstract
Graphene has unprecedented physical, chemical, and electronic properties, but need of the hour is to develop low-dimensional nanomaterials, such as graphene quantum dots (GQDs), that could be incorporated into nanoscale devices. This article depicts the production of GQDs from ultrafine, thin (0.8-1 nm), bilayer graphene sheets (GSs) possessing large micron-sized lateral dimension, low defect density (I D/I G: 0.1), and oxidation degree (C/O ratio: 27) of lowest level, in contrast to many other techniques where synthesis of GSs was done using analytical-grade expensive graphite electrodes. This low-cost manufacturing of GSs for industrial-scale applications was achieved by utilizing only 99%-purity graphite electrodes. The variants of such graphite electrodes (graphite rod, film, pencil) are etched in different pH electrolytes (H2SO4, NaCl, NaOH) via prompt electrochemical exfoliation, each giving more than 50% yield. Nowadays, semiconductor quantum dots (QDs) are utilized in smart device production industries, but their toxicity is a major issue of concern. Therefore, the dimension of this two-dimensional (2D) material is reduced to <10 nm to generate GQDs. A facile and highly reproducible approach has been reported for the large-scale generation of GQDs (size ca. 6-10 nm) with minimal surface defects. The protocol followed in this article to synthesize GQDs involves the use of ethylenediamine (en), which passivates the surface and reduces defects, thereby enhancing the optical properties. We demonstrate the correlation of the electrochemical and hydrothermal parameters with the growth mechanism and morphological, structural, chemical, and optical properties of the graphene nanomaterials. Raman spectroscopy and X-ray diffraction (XRD) reveal the structural configurations of GSs and GQDs to investigate the nature of defects. Field emission scanning electron microscopy (FESEM) confirms the morphological characteristics of the as-prepared GSs and GQDs with energy-dispersive X-ray (EDX) analysis determining the C/O ratio. The optical properties like UV-visible absorption and fluorescence assays show the quantum confinement effect phenomenon in GQDs. The obtained GSs and GQDs display enhanced solution stability in DI water and other solvents due to controllable oxidation degree as elucidated through Fourier transform infrared (FTIR) analysis.
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Affiliation(s)
- Sakshi Kapoor
- Centre for Nanoscience and
Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Aaruni Jha
- Centre for Nanoscience and
Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Hilal Ahmad
- Centre for Nanoscience and
Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - S. S. Islam
- Centre for Nanoscience and
Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
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14
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Jing M, Wu T, Zhou Y, Li X, Liu Y. Nitrogen-Doped Graphene via In-situ Alternating Voltage Electrochemical Exfoliation for Supercapacitor Application. Front Chem 2020; 8:428. [PMID: 32582631 PMCID: PMC7287216 DOI: 10.3389/fchem.2020.00428] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 04/23/2020] [Indexed: 11/17/2022] Open
Abstract
Doping heteroatom, an effective way to enhance the electrochemical performances of graphene, has received wide attention, especially related to nitrogen. Alternating voltage electrochemical exfoliation, as a low cost and green electrochemical approach, has been developed to construct in-situ N-doped graphene (N-Gh) material. The N-Gh presents a much higher capacity than that of pure graphene prepared via the same method, which might be attributed to the introduction of nitrogen, which has much more effects and a disordered structure. As-prepared N-Gh exhibits a low O/C ratio that is helpful in maintaining high electrical conductivity. And the effects and disorder structure are also conductive to reduce the overlaps of graphene layers. A symmetric supercapacitor assembled with N-Gh electrodes displays a satisfactory rate behavior and long cycling stability (92.3% retention after 5,000 cycles).
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Affiliation(s)
- Mingjun Jing
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China.,Department of Chemistry, Xiangtan University, Xiangtan, China
| | - Tianjing Wu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China.,Department of Chemistry, Xiangtan University, Xiangtan, China
| | - Yazheng Zhou
- Department of Chemistry, Xiangtan University, Xiangtan, China
| | - Xilong Li
- Department of Chemistry, Xiangtan University, Xiangtan, China
| | - Yong Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
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15
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Yakovlev AV, Yakovleva EV, Tseluikin VN, Krasnov VV, Mostovoy AS, Vikulova MA, Frolov IH, Rakhmetulina LA. Synthesis of Multilayer Graphene Oxide in Electrochemical Graphite Dispersion in H2SO4. RUSS J APPL CHEM+ 2020. [DOI: 10.1134/s1070427220020093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Zhang M, Fang X, Zhang Y, Guo J, Gong C, Estevez D, Qin F, Zhang J. Ultralight reduced graphene oxide aerogels prepared by cation-assisted strategy for excellent electromagnetic wave absorption. NANOTECHNOLOGY 2020; 31:275707. [PMID: 32235049 DOI: 10.1088/1361-6528/ab851d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, to maximize the unique attributes of reduced graphene oxide (RGO) for excellent microwave absorption, the ultralight RGO aerogels with improved dispersion and interface polarization performance were fabricated via a facile cation-assisted hydrothermal treatment process. The prepared RGO/paraffin composite exhibits excellent microwave absorption (MA) performance in a wideband frequency range of 8.0 ∼ 18.0 GHz with an ultralow absorbent content of 0.5 wt.%. Such performance is comparable with most previously reported results on RGO-based composites but required much higher absorbent content. The mechanisms for the enhancement of polarization relaxation loss and conductive loss were investigated in detail. This study provides a promising and facile method for preparing RGO-based excellent microwave absorption materials with ultra-low filler content, which is significant for designing efficient MA absorbers.
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Affiliation(s)
- Miaomiao Zhang
- Institute of Functional Polymer Composites, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, People's Republic of China. National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, People's Republic of China
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17
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Yakovlev AV, Yakovleva EV, Tseluikin VN, Krasnov VV, Mostovoy AS, Rakhmetulina LA, Frolov IN. Electrochemical Synthesis of Multilayer Graphene Oxide by Anodic Oxidation of Disperse Graphite. RUSS J ELECTROCHEM+ 2020. [DOI: 10.1134/s102319351912019x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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19
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Prakoso B, Ma Y, Stephanie R, Hawari NH, Suendo V, Judawisastra H, Zong Y, Liu Z, Sumboja A. Facile synthesis of battery waste-derived graphene for transparent and conductive film application by an electrochemical exfoliation method. RSC Adv 2020; 10:10322-10328. [PMID: 35498584 PMCID: PMC9050407 DOI: 10.1039/d0ra01100b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 03/04/2020] [Indexed: 01/30/2023] Open
Abstract
Low defect ratio graphene with promising conductivity and transparency can be obtained from the spent graphite in Zn–C battery waste.
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Affiliation(s)
- Bagas Prakoso
- Material Science and Engineering Research Group
- Faculty of Mechanical and Aerospace Engineering
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - Yuanyuan Ma
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science, Technology and Research)
| | - Ruth Stephanie
- Material Science and Engineering Research Group
- Faculty of Mechanical and Aerospace Engineering
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - Naufal Hanif Hawari
- Material Science and Engineering Research Group
- Faculty of Mechanical and Aerospace Engineering
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - Veinardi Suendo
- Inorganic and Physical Chemistry Research Group
- Faculty Mathematics and Natural Sciences
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - Hermawan Judawisastra
- Material Science and Engineering Research Group
- Faculty of Mechanical and Aerospace Engineering
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - Yun Zong
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science, Technology and Research)
- Singapore
| | - Zhaolin Liu
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science, Technology and Research)
- Singapore
| | - Afriyanti Sumboja
- Material Science and Engineering Research Group
- Faculty of Mechanical and Aerospace Engineering
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
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20
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Patil R, Bahadur P, Tiwari S. Dispersed graphene materials of biomedical interest and their toxicological consequences. Adv Colloid Interface Sci 2020; 275:102051. [PMID: 31753296 DOI: 10.1016/j.cis.2019.102051] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/04/2019] [Accepted: 10/17/2019] [Indexed: 02/07/2023]
Abstract
Graphene is one-atom thick nanocarbon displaying a unique honeycomb structure and extensive conjugation. In addition to high surface area to mass ratio, it displays unique optical, thermal, electronic and mechanical properties. Atomic scale tunability of graphene has attracted immense research interest with a prospective utility in electronics, desalination, energy sectors, and beyond. Its intrinsic opto-thermal properties are appealing from the standpoint of multimodal drug delivery, imaging and biosensing applications. Hydrophobic basal plane of sheets can be efficiently loaded with aromatic molecules via non-specific forces. With intense biomedical interest, methods are evolving to produce defect-free and dispersion stable sheets. This review summarizes advancements in synthetic approaches and strategies of stabilizing graphene derivatives in aqueous medium. We have described the interaction of colloidal graphene with cellular and sub-cellular components, and subsequent physiological signaling. Finally, a systematic discussion is provided covering toxicological challenges and possible solutions on utilizing graphene formulations for high-end biomedical applications.
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21
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Zhang M, Jiang Z, Si H, Zhang X, Liu C, Gong C, Zhang Y, Zhang J. Heterogeneous iron–nickel compound/RGO composites with tunable microwave absorption frequency and ultralow filler loading. Phys Chem Chem Phys 2020; 22:8639-8646. [DOI: 10.1039/d0cp00290a] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Heterogeneous iron–nickel compound/reduced graphene oxide composites were fabricated to obtain lightweight and high-efficiency microwave absorption materials with tunable absorption frequency.
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Affiliation(s)
- Miaomiao Zhang
- Institute of Functional Polymer Composites
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Zhiyang Jiang
- Institute of Functional Polymer Composites
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Haoxu Si
- Institute of Functional Polymer Composites
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Xuefeng Zhang
- Innovative Center for Advanced Materials
- Hangzhou Dianzi University
- Hangzhou 310012
- China
| | - Caixia Liu
- Institute of Functional Polymer Composites
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Chunhong Gong
- Institute of Functional Polymer Composites
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Yahong Zhang
- Institute of Functional Polymer Composites
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Jingwei Zhang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials
- Henan University
- Kaifeng 475004
- China
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22
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Wang H, Fu Q, Pan C. Green mass synthesis of graphene oxide and its MnO2 composite for high performance supercapacitor. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.178] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Yen PJ, Sahoo SK, Chiang YC, Huang SY, Wu CW, Hsu YC, Wei KH. Using Different Ions to Tune Graphene Stack Structures from Sheet- to Onion-Like During Plasma Exfoliation, with Supercapacitor Applications. NANOSCALE RESEARCH LETTERS 2019; 14:141. [PMID: 31016404 PMCID: PMC6478787 DOI: 10.1186/s11671-019-2963-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
In this article, we report a facile and simple approach for tuning graphene nanosheet structures (GNS) with different ions in the electrolytes through cathodic plasma exfoliation process in electrochemical reactions. We obtained sheet- and onion-like GNS when aqueous electrolyte NaOH and H2SO4, respectively, were present during plasma exfoliation in the electrochemical reactions, as evidenced from scanning electron microscopy and transmission electron microscopy images. Moreover, the onion-like GNS exhibited a specific surface area of 464 m2 g-1 and a supercapacitive performance of 67.1 F g-1, measured at a scan rate of 5 mV s-1 in 1 M NaCl; these values were much higher than those (72 m2 g-1 and 21.6 F g-1, respectively) of the sheet-like GNS. This new approach for efficiently generating tunable stacked graphene structures with different ions, in the cathodic plasma exfoliation process, has promising potentials for use in energy storage devices.
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Affiliation(s)
- Po-Jen Yen
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Sumanta Kumar Sahoo
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Ya-Chi Chiang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Shih-Yu Huang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Chia-Wei Wu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Yung-Chi Hsu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Kung-Hwa Wei
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
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Rafiee F, Khavari P, Payami Z, Ansari N. Palladium nanoparticles immobilized on the magnetic few layer graphene support as a highly efficient catalyst for ligand free Suzuki cross coupling and homo coupling reactions. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.01.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Huang H, He P, Huang T, Hu S, Xu T, Gu H, Yang S, Song L, Xie X, Ding G. Electrochemical Strategy for Flexible and Highly Conductive Carbon Films: The Role of 3-Dimensional Graphene/Graphite Aggregates. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1239-1246. [PMID: 30525387 DOI: 10.1021/acsami.8b17060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Conductive carbon films with good flexibility are ever-increasingly desired for electronics. Previous efforts relying on graphene films to achieve this required special treatment to create wrinkles in the lamellar stacking sheet structure. Here, films with a wrinkled structure were facilely fabricated from electrochemically derived 3-dimiensional (3D) graphene/graphite aggregates, exhibiting excellent flexibility and high conductivity. The resulting films are very flexible that can bear 1000 times fold without breakage. A high conductivity up to 100 000 S m-1 can be achieved after a relatively low temperature annealing (1000 °C) owing to its low content of defect and large size of graphene/graphite aggregates. Based on these properties, an electrothermal heater assembled from these composite films supplies a high saturated temperature (423 °C) at low working voltages (4 V). These superior properties, together with the advantage of environmental friendliness and facile and large-scale fabrication, endow the composite films with great potential applications in flexible electronics.
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Affiliation(s)
- Haoguang Huang
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Peng He
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Tao Huang
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Shike Hu
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Tao Xu
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Hongyu Gu
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Siwei Yang
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Lixin Song
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Xiaoming Xie
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Guqiao Ding
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
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26
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Wang H, Zhu K, Yan L, Wei C, Zhang Y, Gong C, Guo J, Zhang J, Zhang D, Zhang J. Efficient and scalable high-quality graphene nanodot fabrication through confined lattice plane electrochemical exfoliation. Chem Commun (Camb) 2019; 55:5805-5808. [PMID: 31041958 DOI: 10.1039/c9cc02889g] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Reported is a confined lattice plane electrochemical exfoliation method that exploits the electrochemical reaction of face (basal) or side (edge) planes of highly oriented pyrolytic graphite (HOPG) while other planes are blocked using wax, based on the anisotropy of HOPG for efficient and effective fabrication of graphene nanodots with uniform size distribution.
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Affiliation(s)
- Hui Wang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, China.
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27
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High-yield scalable graphene nanosheet production from compressed graphite using electrochemical exfoliation. Sci Rep 2018; 8:14525. [PMID: 30266957 PMCID: PMC6162260 DOI: 10.1038/s41598-018-32741-3] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 09/14/2018] [Indexed: 11/08/2022] Open
Abstract
Electrochemical exfoliation is a promising bulk method for producing graphene from graphite; in this method, an applied voltage drives ionic species to intercalate into graphite where they form gaseous species that expand and exfoliate individual graphene sheets. However, a number of obstacles have prevented this approach from becoming a feasible production route; the disintegration of the graphite electrode as the method progresses is the chief difficulty. Here we show that if graphite powders are contained and compressed within a permeable and expandable containment system, the graphite powders can be continuously intercalated, expanded, and exfoliated to produce graphene. Our data indicate both high yield (65%) and extraordinarily large lateral size (>30 μm) in the as-produced graphene. We also show that this process is scalable and that graphene yield efficiency depends solely on reactor geometry, graphite compression, and electrolyte transport.
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28
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Raj CJ, Manikandan R, Lee WG, Cho WJ, Yu KH, Kim BC. Polypyrrole thin film on electrochemically modified graphite surface for mechanically stable and high-performance supercapacitor electrodes. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.07.091] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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