Quantifying Surface Area of Nanosheet Graphene Oxide Colloid Using a Gas-Phase Electrostatic Approach

Analytical Chemistry
Wei-Chang ChangDe-Hao Tsai

Abstract

We demonstrate a new, facile gas-phase electrostatic approach to successfully quantify equivalent surface area of graphene oxide (GO) colloid on a number basis. Mobility diameter (dp,m)-based distribution and the corresponding equivalent surface area (SA) of GO colloids (i.e., with different lateral aspect ratios) were able to be identified by electrospray-differential mobility analysis (ES-DMA) coupled to a condensation particle counter (CPC) and an aerosol surface area analyzer (ASAA). A correlation of SA ∝ dp,m2.0 was established using the ES-DMA-CPC/ASAA, which is consistent with the observation by the 2-dimensional image analysis of size-selected GOs. An ultrafast surface area measurement of GO colloid was achieved via a direct coupling of ES with a combination of ASAA and CPC (i.e., measurement time was 2 min per sample; without size classification). The measured equivalent surface area of GO was ∼202 ± 7 m2 g-1, which is comparable to Brunauer-Emmett-Teller (BET) surface area, ∼240 ± 59 m2 g-1. The gas-phase electrostatic approach proposed in this study has the superior advantages of being fast, requiring no elaborate drying process, and requiring only a very small amount of sample (i.e., <0.01 mg). To the best of our kn...Continue Reading

References

Sep 16, 2008·Nano Letters·Meryl D StollerRodney S Ruoff
Jul 1, 2010·Chemical Society Reviews·Da ChenJinghong Li
Aug 14, 2010·Advanced Materials·Yanwu ZhuRodney S Ruoff
Jul 10, 2012·Analytical Chemistry·Suvajyoti GuhaMichael R Zachariah
Aug 2, 2012·Chemical Society Reviews·Dale A C BrownsonCraig E Banks
Jan 23, 2013·Analytical and Bioanalytical Chemistry·Sherrie ElzeyVincent A Hackley
Jun 5, 2014·Chemical Reviews·Adriano AmbrosiMartin Pumera
Dec 19, 2014·Chemical Society Reviews·Yu ChenLianzhou Wang
Dec 23, 2014·Nature Materials·Rinaldo RaccichiniBruno Scrosati
Mar 19, 2015·Analytical Chemistry·Jui-Ting TaiDe-Hao Tsai
Jun 17, 2015·Angewandte Chemie·Quanjun XiangJiaguo Yu
Dec 23, 2015·Chemical Reviews·Anqi Zhang, Charles M Lieber
Sep 1, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Wei-Chang ChangDe-Hao Tsai
Jan 21, 2017·Analytical Chemistry·Jungho KimDal-Hee Min

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Citations

Oct 8, 2021·The Journal of Physical Chemistry Letters·Abdelsattar O E AbdelhalimKonstantin N Semenov

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