626
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Shinoda N, Yamauchi Y, Nobuta Y, Hino T. Effect of induced damage on hydrogen isotope retention of F82H with impurity layer. FUSION ENGINEERING AND DESIGN 2014. [DOI: 10.1016/j.fusengdes.2014.05.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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627
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Salunkhe RR, Lee YH, Chang KH, Li JM, Simon P, Tang J, Torad NL, Hu CC, Yamauchi Y. Nanoarchitectured graphene-based supercapacitors for next-generation energy-storage applications. Chemistry 2014; 20:13838-52. [PMID: 25251360 DOI: 10.1002/chem.201403649] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tremendous development in the field of portable electronics and hybrid electric vehicles has led to urgent and increasing demand in the field of high-energy storage devices. In recent years, many research efforts have been made for the development of more efficient energy-storage devices such as supercapacitors, batteries, and fuel cells. In particular, supercapacitors have great potential to meet the demands of both high energy density and power density in many advanced technologies. For the last half decade, graphene has attracted intense research interest for electrical double-layer capacitor (EDLC) applications. The unique electronic, thermal, mechanical, and chemical characteristics of graphene, along with the intrinsic benefits of a carbon material, make it a promising candidate for supercapacitor applications. This Review focuses on recent research developments in graphene-based supercapacitors, including doped graphene, activated graphene, graphene/metal oxide composites, graphene/polymer composites, and graphene-based asymmetric supercapacitors. The challenges and prospects of graphene-based supercapacitors are also discussed.
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628
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Li Y, Bastakoti BP, Imura M, Suzuki N, Jiang X, Ohki S, Deguchi K, Suzuki M, Arai S, Yamauchi Y. Synthesis of a Large-Sized Mesoporous Phosphosilicate Thin Film through Evaporation-Induced Polymeric Micelle Assembly. Chem Asian J 2014; 10:183-7. [DOI: 10.1002/asia.201402636] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Indexed: 11/07/2022]
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629
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Tang J, Torad NL, Salunkhe RR, Yoon JH, Al Hossain MS, Dou SX, Kim JH, Kimura T, Yamauchi Y. Towards Vaporized Molecular Discrimination: A Quartz Crystal Microbalance (QCM) Sensor System Using Cobalt-Containing Mesoporous Graphitic Carbon. Chem Asian J 2014; 9:3238-44. [DOI: 10.1002/asia.201402629] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Indexed: 11/10/2022]
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630
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Yamauchi Y, Vernet N, Riel J, Burgoyne P, Ward M. Only three Y chromosome genes are enough for obtaining sperm functional in assisted fertilization and yielding live offspring in the mouse. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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631
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Ruthig V, Yamauchi Y, Riel J, Mitchell M, Ward M. Overerexpression of X-linked Eif2s3x can substitute for the loss of Y-linked Eif2s3y and allows for spermatogonial proliferation and differentiation in the mouse. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.1198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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632
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Suzuki N, Jiang X, Salunkhe RR, Osada M, Yamauchi Y. Back Cover: Chemical Preparation of Ferroelectric Mesoporous Barium Titanate Thin Films: Drastic Enhancement of Curie Temperature Induced by Mesopore-Derived Strain (Chem. Eur. J. 36/2014). Chemistry 2014. [DOI: 10.1002/chem.201490153] [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]
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633
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Ortega E, Ruthig V, Yamauchi Y, Ward M. Overexpression of Sox9 in absence of Sry supports spermatogenesis progression and male fertility in the mouse. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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634
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Yamaguchi T, Yamauchi Y, Yamaguchi J, Hara K. Fractures of the pubic rami and sacrum identified after delivery. Int J Obstet Anesth 2014; 24:91-3. [PMID: 25499014 DOI: 10.1016/j.ijoa.2014.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 07/21/2014] [Accepted: 08/19/2014] [Indexed: 01/13/2023]
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635
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Suzuki N, Jiang X, Salunkhe RR, Osada M, Yamauchi Y. Chemical preparation of ferroelectric mesoporous barium titanate thin films: drastic enhancement of Curie temperature induced by mesopore-derived strain. Chemistry 2014; 20:11283-6. [PMID: 25111152 DOI: 10.1002/chem.201403308] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Indexed: 11/10/2022]
Abstract
Mesoporous barium titanate (BT) thin films are synthesized by a surfactant-assisted sol-gel method. The obtained mesoporous BT thin films show enhanced ferroelectricity due to the effective strains induced by mesopores. The Curie temperature (T(c)) of the mesoporous BT reaches approximately 470 °C.
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636
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Huang YT, Yamauchi Y, Lai CW, Chen WJ. Evaluating the antibacterial property of gold-coated hydroxyapatite: a molecular biological approach. JOURNAL OF HAZARDOUS MATERIALS 2014; 277:20-26. [PMID: 24268536 DOI: 10.1016/j.jhazmat.2013.10.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 10/10/2013] [Accepted: 10/25/2013] [Indexed: 06/02/2023]
Abstract
Hydroxyapatite nanoparticles (HAP NPs) are one of the widely used biocompatible materials. However, information about the reaction between HAP NPs and microorganisms is insufficient. This paper aims to understand the antibacterial property of a new nanocomposite consisting of gold-coated HAP and alginate polymer (namely, Au-HAP@Alg NPs). To the best of our knowledge, we reported the first information regarding to MIC (25mg/mL), DIZ (no visible zone), and IC50 (0.5mg/mL) of Au-HAP@Alg NPs toward the microorganism Escherichia coli TOP10. The real-time gene expression levels of polA, polB, cyd, mdoG, GAPDH, and 16S rRNA were maintained at stable levels up until conditions of 2.5mg/mL Au-HAP@Alg NPs. The results showed that 16S rRNA can be a good reference under these conditions. The expressions of GAPDH, cyd, and mdoG were inhibited obviously under condition of 10mg/mL of Au-HAP@Alg NPs. Our results indicated that the possible antibacterial mechanism of Au-HAP@Alg was through the interaction with these carbohydrate and cell wall-related genes. This novel biocompatible and antibacterial material can potentially be applied in medical and environmental fields.
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637
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Malgras V, Jood P, Sun Z, Dou SX, Yamauchi Y, Kim JH. Channelled Porous TiO2Synthesized with a Water-in-Oil Microemulsion. Chemistry 2014; 20:10451-5. [DOI: 10.1002/chem.201402179] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 04/29/2014] [Indexed: 11/05/2022]
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638
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Sun X, Wang B, Pratt A, Yamauchi Y. Magnetic moment enhancement and spin polarization switch of the manganese phthalocyanine molecule on an IrMn(100) surface. J Chem Phys 2014; 141:034703. [DOI: 10.1063/1.4889934] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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639
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Wang ZP, Zhang JW, Zhang ZM, Ding ZJ, Yamauchi Y. Selective functionalization of silicon surface controlled by metastable helium atom beam for patterning chemisorbed monolayer molecular assemblies. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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640
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Auxilia FM, Ishihara S, Mandal S, Tanabe T, Saravanan G, Ramesh GV, Umezawa N, Hara T, Xu Y, Hishita S, Yamauchi Y, Dakshanamoorthy A, Hill JP, Ariga K, Abe H. Low-temperature remediation of NO catalyzed by interleaved CuO nanoplates. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:4481-5. [PMID: 24782389 PMCID: PMC4173129 DOI: 10.1002/adma.201306055] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/27/2014] [Indexed: 05/19/2023]
Abstract
A copper(II)-oxide-based exhaust catalyst exhibits better activity than Pt- and Rh-nanoparticle catalysts in NO remediation at 175 °C. Following theoretical design, the CuO catalyst is rationally prepared; CuO nanoplates bearing a maximized amount of the active {001} facet are arranged in interleaved layers. A field test using a commercial gasoline engine demonstrates the ability of the catalyst to remove NO from the exhaust of small vehicles.
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641
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Geng F, Ma R, Yamauchi Y, Sasaki T. Tetrabutylphosphonium ions as a new swelling/delamination agent for layered compounds. Chem Commun (Camb) 2014; 50:9977-80. [DOI: 10.1039/c4cc03736g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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642
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Pratt A, Graziosi P, Bergenti I, Prezioso M, Dediu A, Yamauchi Y. Ultrahigh vacuum and low-temperature cleaning of oxide surfaces using a low-concentration ozone beam. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:075116. [PMID: 25085182 DOI: 10.1063/1.4890208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a novel method of delivering a low-concentration (<15%) ozone beam to an ultra-high vacuum environment for the purpose of cleaning and dosing experimental samples through oxidation processing. The system described is safe, low-cost, and practical and overcomes the limitations of ozone transport in the molecular flow environment of high or ultrahigh vacuum whilst circumventing the use of pure ozone gas which is potentially highly explosive. The effectiveness of this method in removing surface contamination is demonstrated through comparison of high-temperature annealing of a simple oxide (MgO) in ozone and oxygen environments as monitored using quadrupole mass spectroscopy and Auger electron spectroscopy. Additionally, we demonstrate the potential of ozone for obtaining clean complex oxide surfaces without the need for high-temperature annealing which may significantly alter surface structure.
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643
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Salunkhe RR, Hsu SH, Wu KCW, Yamauchi Y. Large-scale synthesis of reduced graphene oxides with uniformly coated polyaniline for supercapacitor applications. CHEMSUSCHEM 2014; 7:1551-6. [PMID: 24850493 DOI: 10.1002/cssc.201400147] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/19/2014] [Indexed: 05/04/2023]
Abstract
We report an effective route for the preparation of layered reduced graphene oxide (rGO) with uniformly coated polyaniline (PANI) layers. These nanocomposites are synthesized by chemical oxidative polymerization of aniline monomer in the presence of layered rGO. SEM, TEM, X-ray photoelectron spectroscopy (XPS), FTIR, and Raman spectroscopy analysis results demonstrated that reduced graphene oxide-polyaniline (rGO-PANI) nanocomposites are successfully synthesized. Because of synergistic effects, rGO-PANI nanocomposites prepared by this approach exhibit excellent capacitive performance with a high specific capacitance of 286 F g(-1) and high cycle reversibility of 94 % after 2000 cycles.
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644
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Yamauchi Y, Miyata N, Kojima H, Nagata M, Maniwa T, Takahashi S, Isaka M, Ohde Y. P-169 * SIGNIFICANCE OF THE PRESENCE OF MICROSCOPIC VASCULAR INVASION AFTER COMPLETE RESECTION OF NON-SMALL-CELL LUNG CANCER. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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645
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Torad NL, Hu M, Ishihara S, Sukegawa H, Belik AA, Imura M, Ariga K, Sakka Y, Yamauchi Y. Direct synthesis of MOF-derived nanoporous carbon with magnetic Co nanoparticles toward efficient water treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:2096-107. [PMID: 24610684 DOI: 10.1002/smll.201302910] [Citation(s) in RCA: 316] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Revised: 12/18/2013] [Indexed: 05/23/2023]
Abstract
Nanoporous carbon particles with magnetic Co nanoparticles (Co/NPC particles) are synthesized by one-step carbonization of zeolitic imidazolate framework-67 (ZIF-67) crystals. After the carbonization, the original ZIF-67 shapes are preserved well. Fine magnetic Co nanoparticles are well dispersed in the nanoporous carbon matrix, with the result that the Co/NPC particles show a strong magnetic response. The obtained nanoporous carbons show a high surface area and well-developed graphitized wall, thereby realizing fast molecular diffusion of methylene blue (MB) molecules with excellent adsorption performance. The Co/NPC possesses an impressive saturation capacity for MB dye compared with the commercial activated carbon. Also, the dispersed magnetic Co nanoparticles facilitate easy magnetic separation.
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646
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Mizoguchi Y, Kato TA, Seki Y, Ohgidani M, Sagata N, Horikawa H, Yamauchi Y, Sato-Kasai M, Hayakawa K, Inoue R, Kanba S, Monji A. Brain-derived neurotrophic factor (BDNF) induces sustained intracellular Ca2+ elevation through the up-regulation of surface transient receptor potential 3 (TRPC3) channels in rodent microglia. J Biol Chem 2014; 289:18549-55. [PMID: 24811179 DOI: 10.1074/jbc.m114.555334] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Microglia are immune cells that release factors, including proinflammatory cytokines, nitric oxide (NO), and neurotrophins, following activation after disturbance in the brain. Elevation of intracellular Ca(2+) concentration ([Ca(2+)]i) is important for microglial functions such as the release of cytokines and NO from activated microglia. There is increasing evidence suggesting that pathophysiology of neuropsychiatric disorders is related to the inflammatory responses mediated by microglia. Brain-derived neurotrophic factor (BDNF) is a neurotrophin well known for its roles in the activation of microglia as well as in pathophysiology and/or treatment of neuropsychiatric disorders. In this study, we sought to examine the underlying mechanism of BDNF-induced sustained increase in [Ca(2+)]i in rodent microglial cells. We observed that canonical transient receptor potential 3 (TRPC3) channels contribute to the maintenance of BDNF-induced sustained intracellular Ca(2+) elevation. Immunocytochemical technique and flow cytometry also revealed that BDNF rapidly up-regulated the surface expression of TRPC3 channels in rodent microglial cells. In addition, pretreatment with BDNF suppressed the production of NO induced by tumor necrosis factor α (TNFα), which was prevented by co-adiministration of a selective TRPC3 inhibitor. These suggest that BDNF induces sustained intracellular Ca(2+) elevation through the up-regulation of surface TRPC3 channels and TRPC3 channels could be important for the BDNF-induced suppression of the NO production in activated microglia. We show that TRPC3 channels could also play important roles in microglial functions, which might be important for the regulation of inflammatory responses and may also be involved in the pathophysiology and/or the treatment of neuropsychiatric disorders.
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647
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Ariga K, Yamauchi Y, Rydzek G, Ji Q, Yonamine Y, Wu KCW, Hill JP. ChemInform Abstract: Layer-by-Layer Nanoarchitectonics: Invention, Innovation, and Evolution. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/chin.201421296] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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648
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Suzuki N, Kamachi Y, Takai K, Kiba S, Sakka Y, Miyamoto N, Yamauchi Y. Effective Use of Mesoporous Silica Filler: Comparative Study on Thermal Stability and Transparency of Silicone Rubbers Loaded with Various Kinds of Silica Particles. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301615] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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649
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Torad NL, Li Y, Ishihara S, Ariga K, Kamachi Y, Lian HY, Hamoudi H, Sakka Y, Chaikittisilp W, Wu KCW, Yamauchi Y. MOF-derived Nanoporous Carbon as Intracellular Drug Delivery Carriers. CHEM LETT 2014. [DOI: 10.1246/cl.131174] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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650
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Torad NL, Salunkhe RR, Li Y, Hamoudi H, Imura M, Sakka Y, Hu CC, Yamauchi Y. Electric double-layer capacitors based on highly graphitized nanoporous carbons derived from ZIF-67. Chemistry 2014; 20:7895-900. [PMID: 24788922 DOI: 10.1002/chem.201400089] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Indexed: 11/11/2022]
Abstract
Nanoporous carbons (NPCs) have large specific surface areas, good electrical and thermal conductivity, and both chemical and mechanical stability, which facilitate their use in energy storage device applications. In the present study, highly graphitized NPCs are synthesized by one-step direct carbonization of cobalt-containing zeolitic imidazolate framework-67 (ZIF-67). After chemical etching, the deposited Co content can be completely removed to prepare pure NPCs with high specific surface area, large pore volume, and intrinsic electrical conductivity (high content of sp(2) -bonded carbons). A detailed electrochemical study is performed using cyclic voltammetry and galvanostatic charge-discharge measurements. Our NPC is very promising for efficient electrodes for high-performance supercapacitor applications. A maximum specific capacitance of 238 F g(-1) is observed at a scan rate of 20 mV s(-1) . This value is very high compared to previous works on carbon-based electric double layer capacitors.
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