Surface area measurements of graphene and graphene oxide samples: Dopamine adsorption as a complement or alternative to methylene blue?

被引：42

作者：

Chen, Lifu ^{[1
]}

Batchelor-McAuley, Christopher ^{[1
]}

Rasche, Bertold ^{[1
]}

Johnston, Colin ^{[2
]}

Hindle, Neil ^{[3
]}

Compton, Richard G. ^{[1
]}

机构：

[1] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, South Parks Rd, Oxford OX1 3QZ, England

[2] Univ Oxford, Dept Mat, Oxford OX5 1PF, England

[3] Appl Graphene Mat Plc, Cleveland TS10 4RF, England

来源：

APPLIED MATERIALS TODAY | 2020年 / 18卷

关键词：

Surface area characterisation; Dopamine adsorption; Graphene; Graphene oxide; UV-vis spectroscopy; HIGH-PERFORMANCE; ELECTROCHEMISTRY; OXIDATION; CARBON; CHARGE; FLAT;

D O I：

10.1016/j.apmt.2019.100506

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The possible use of dopamine, monitored spectroscopically, as a probe molecule for surface area measurements is investigated. Using high surface area carbon materials, including both graphene and graphene oxide (GO), the method is established as a complement or alternative to methylene blue or conventional N-2 (BET) adsorption. The molecular reorientation (flat to vertical) of dopamine on the graphene and GO surface provides a direct indication of the monolayer coverage and the rapid adsorption (within 10 min to saturation) offers high convenience. The smaller dopamine molecule size and less self-repulsion compared to methylene blue can be considered to yield a more closely-packed surface coverage on the materials of interest. Especially for materials with complex morphologies and internal structures, the dopamine adsorption will therefore lead to a more 'correct' measurement. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：5

共 37 条

[1] High-Performance Multifunctional Graphene Yarns: Toward Wearable All-Carbon Energy Storage Textiles [J].

Aboutalebi, Seyed Hamed ;

Jalili, Rouhollah ;

Esrafilzadeh, Dorna ;

Salari, Maryam ;

Gholamvand, Zahra ;

Yamini, Sima Aminorroaya ;

Konstantinov, Konstantin ;

Shepherd, Roderick L. ;

Chen, Jun ;

Moulton, Simon E. ;

Innis, Peter Charles ;

Minett, Andrew I. ;

Razal, Joselito M. ;

Wallace, Gordon G. .

ACS NANO, 2014, 8 (03) :2456-2466

[2] Electrochemistry of Graphene and Related Materials [J].

Ambrosi, Adriano ;

Chua, Chun Kiang ;

Bonanni, Alessandra ;

Pumera, Martin .

CHEMICAL REVIEWS, 2014, 114 (14) :7150-7188

[3]

Attard G., 1998, SURFACES, V59, P6

[4] Van der Waals radii of elements [J].

Batsanov, SS .

INORGANIC MATERIALS, 2001, 37 (09) :871-885

[5] Adsorption of gases in multimolecular layers [J].

Brunauer, S ;

Emmett, PH ;

Teller, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :309-319

[6] Impact electrochemistry reveals that graphene nanoplatelets catalyse the oxidation of dopamine via adsorption [J].

Chen, Lifu ;

Tanner, Eden E. L. ;

Lin, Chuhong ;

Compton, Richard G. .

CHEMICAL SCIENCE, 2018, 9 (01) :152-159

[7] Adsorption on graphene: flat to edge to end transitions of phenyl hydroquinone [J].

Chen, Lifu ;

Tanner, Eden E. L. ;

Compton, Richard G. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2017, 19 (27) :17521-17525

[8] Catechol adsorption on graphene nanoplatelets: isotherm, flat to vertical phase transition and desorption kinetics [J].

Chen, Lifu ;

Li, Xiuting ;

Tanner, Eden E. L. ;

Compton, Richard G. .

CHEMICAL SCIENCE, 2017, 8 (07) :4771-4778

[9] Synthesis of Graphene and Its Applications: A Review [J].

Choi, Wonbong ;

Lahiri, Indranil ;

Seelaboyina, Raghunandan ;

Kang, Yong Soo .

CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES, 2010, 35 (01) :52-71

[10]

Choucair M, 2009, NAT NANOTECHNOL, V4, P30, DOI [10.1038/nnano.2008.365, 10.1038/NNANO.2008.365]

← 1 2 3 4 →