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Abdolmaleki A, Mallakpour S, Mahmoudian M. Preparation and Evaluation of Edge Selective Sulfonated Graphene by Chlorosulfuric Acid as an Active Metal- Free Electrocatalyst for Oxygen Reduction Reaction in Alkaline Media. ChemistrySelect 2017. [DOI: 10.1002/slct.201702409] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Amir Abdolmaleki
- Organic Polymer Chemistry Research Laboratory; Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Iran
- Nanotechnology and Advanced Materials Institute; Isfahan University of Technology; Isfahan 84156-83111 Iran
- Department of Chemistry; College of Sciences; Shiraz University; Shiraz 71467-13565 Iran
| | - Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory; Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Iran
- Nanotechnology and Advanced Materials Institute; Isfahan University of Technology; Isfahan 84156-83111 Iran
| | - Manzar Mahmoudian
- Organic Polymer Chemistry Research Laboratory; Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Iran
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Initial studies of plasma facing component surface conditioning in the national spherical tokamak experiment upgrade with the materials analysis particle probe. NUCLEAR MATERIALS AND ENERGY 2017. [DOI: 10.1016/j.nme.2017.03.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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3
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Karagiannidis P, Hodge SA, Lombardi L, Tomarchio F, Decorde N, Milana S, Goykhman I, Su Y, Mesite SV, Johnstone DN, Leary RK, Midgley PA, Pugno NM, Torrisi F, Ferrari AC. Microfluidization of Graphite and Formulation of Graphene-Based Conductive Inks. ACS NANO 2017; 11:2742-2755. [PMID: 28102670 PMCID: PMC5371927 DOI: 10.1021/acsnano.6b07735] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 01/19/2017] [Indexed: 05/19/2023]
Abstract
We report the exfoliation of graphite in aqueous solutions under high shear rate [∼ 108 s-1] turbulent flow conditions, with a 100% exfoliation yield. The material is stabilized without centrifugation at concentrations up to 100 g/L using carboxymethylcellulose sodium salt to formulate conductive printable inks. The sheet resistance of blade coated films is below ∼2Ω/□. This is a simple and scalable production route for conductive inks for large-area printing in flexible electronics.
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Affiliation(s)
| | - Stephen A. Hodge
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
| | - Lucia Lombardi
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
| | - Flavia Tomarchio
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
| | - Nicolas Decorde
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
| | - Silvia Milana
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
| | - Ilya Goykhman
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
| | - Yang Su
- Microfluidics
International Corporation, Westwood, Massachusetts 02090, United States
| | - Steven V. Mesite
- Microfluidics
International Corporation, Westwood, Massachusetts 02090, United States
| | - Duncan N. Johnstone
- Department
of Materials Science and Metallurgy, University
of Cambridge, Cambridge CB3 0FS, United Kingdom
| | - Rowan K. Leary
- Department
of Materials Science and Metallurgy, University
of Cambridge, Cambridge CB3 0FS, United Kingdom
| | - Paul A. Midgley
- Department
of Materials Science and Metallurgy, University
of Cambridge, Cambridge CB3 0FS, United Kingdom
| | - Nicola M. Pugno
- Department
of Civil, Environmental and Mechanical Engineering, University of Trento, Trento 38123, Italy
- Fondazione
Bruno Kessler, Center for Materials and
Microsystems, Povo, Trento 38123, Italy
- School
of Engineering and Materials Science, Queen
Mary University, London E1 4NS, United Kingdom
| | - Felice Torrisi
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
| | - Andrea C. Ferrari
- Cambridge
Graphene Centre, University of Cambridge, Cambridge CB3 0FA, United Kingdom
- E-mail:
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Najafabadi AT, Leeuwner MJ, Wilkinson DP, Gyenge EL. Electrochemically Produced Graphene for Microporous Layers in Fuel Cells. CHEMSUSCHEM 2016; 9:1689-1697. [PMID: 27254459 DOI: 10.1002/cssc.201600351] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/19/2016] [Indexed: 06/05/2023]
Abstract
The microporous layer (MPL) is a key cathodic component in proton exchange membrane fuel cells owing to its beneficial influence on two-phase mass transfer. However, its performance is highly dependent on material properties such as morphology, porous structure, and electrical resistance. To improve water management and performance, electrochemically exfoliated graphene (EGN) microsheets are considered as an alternative to the conventional carbon black (CB) MPLs. The EGN-based MPLs decrease the kinetic overpotential and the Ohmic potential loss, whereas the addition of CB to form a composite EGN+CB MPL improves the mass-transport limiting current density drastically. This is reflected by increases of approximately 30 and 70 % in peak power densities at 100 % relative humidity (RH) compared with those for CB- and EGN-only MPLs, respectively. The composite EGN+CB MPL also retains the superior performance at a cathode RH of 20 %, whereas the CB MPL shows significant performance loss.
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Affiliation(s)
- Amin Taheri Najafabadi
- Department of Chemical and Biological Engineering, Clean Energy Research Centre, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Magrieta J Leeuwner
- Department of Chemical and Biological Engineering, Clean Energy Research Centre, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - David P Wilkinson
- Department of Chemical and Biological Engineering, Clean Energy Research Centre, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada.
| | - Előd L Gyenge
- Department of Chemical and Biological Engineering, Clean Energy Research Centre, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada.
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Electrochemically exfoliated graphene anodes with enhanced biocurrent production in single-chamber air-breathing microbial fuel cells. Biosens Bioelectron 2016; 81:103-110. [DOI: 10.1016/j.bios.2016.02.054] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 02/17/2016] [Accepted: 02/19/2016] [Indexed: 01/18/2023]
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Pan Y, Chou SL, Liu HK, Dou SX. Improved cycling stability of lithium–sulphur batteries by enhancing the retention of active material with a sandwiched hydrothermally treated graphite film. RSC Adv 2016. [DOI: 10.1039/c6ra01033d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new lithium–sulphur battery with a hydrothermally treated graphite film sandwiched between the separator and the sulphur cathode shows increased capacity, enhanced cycling stability and improved coulombic efficiency.
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Affiliation(s)
- Yuede Pan
- Institute for Superconducting and Electronic Materials
- University of Wollongong
- Australia
| | - Shu-Lei Chou
- Institute for Superconducting and Electronic Materials
- University of Wollongong
- Australia
| | - Hua-Kun Liu
- Institute for Superconducting and Electronic Materials
- University of Wollongong
- Australia
| | - Shi-Xue Dou
- Institute for Superconducting and Electronic Materials
- University of Wollongong
- Australia
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Halonen N, Sápi A, Nagy L, Puskás R, Leino AR, Mäklin J, Kukkola J, Tóth G, Wu MC, Liao HC, Su WF, Shchukarev A, Mikkola JP, Kukovecz Á, Kónya Z, Kordás K. Low-temperature growth of multi-walled carbon nanotubes by thermal CVD. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 2011. [DOI: 10.1002/pssb.201100137] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Affiliation(s)
- Shintaro Fujii
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Toshiaki Enoki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
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Kuznetsova A, Yates JT, Liu J, Smalley RE. Physical adsorption of xenon in open single walled carbon nanotubes: Observation of a quasi-one-dimensional confined Xe phase. J Chem Phys 2000. [DOI: 10.1063/1.481575] [Citation(s) in RCA: 192] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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