Activity of MWCNT sheets and effects of carbonaceous impurities toward the alkaline-based hydrogen evolution reaction
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Herein, we utilize freestanding sheets of multi-walled carbon nanotube (MWCNT), fabricated through a surface-engineered and controlled approach, to provide direct measurements of activities of MWCNT toward the hydrogen evolution reaction (HER). Since conventional fabrication methods of MWCNT materials can result in different carbonaceous residue contents (as reported in literature), the effect of carbonaceous impurities on the activity of MWCNT toward the HER becomes interesting (not previously recognized). Our results show that increasing amounts of carbonaceous impurities (in the form of carbon black additives) can initially increase the catalytic activity of MWCNT toward the HER, but will result in a lower electrochemical stability and lower activity at higher rates of charge transfer or longer times of charging, for which we propose an electrolytic transport mechanism, related to a debris-formation phenomenon occurring over carbonaceous impurities. The work suggests that carbonaceous impurities’ content should be accounted for during electrochemical studies of MWCNT toward the HER.
KeywordsMulti-walled carbon nanotubes Electrolysis Hydrogen evolution reaction Electrocatalysis Buckypaper
This publication is based upon work supported by the Khalifa University of Science and Technology under Award No. 8474000003. The authors acknowledge the Cooperative Agreement between the Masdar Institute of Science and Technology (Masdar Institute), Abu Dhabi, UAE and the Massachusetts Institute of Technology (MIT), Cambridge, MA, USA. The authors acknowledge the support of Applied NanoStructured Solutions LLC, a Lockheed Martin Company, for providing the carbon nanostructured flakes.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 1.De Valladares MR (2017) Global trends and outlook for hydrogen. International Energy Agency. https://ieahydrogen.org/pdfs/Global-Outlook-and-Trends-for-Hydrogen_Dec2017_WEB.aspx. Accessed 8 Dec 2018
- 2.Zhao G, Rui K, Dou SX, Sun W (2018) Heterostructures for electrochemical hydrogen evolution reaction: a review. Adv Funct Mater 28:1803291. https://doi.org/10.1002/adfm.201803291
- 7.Seo B, Jung GY, Sa YJ, Jeong HY, Cheon JY, Lee JH, Kim HY, Kim JC, Shin HS, Kwak SK, Joo SH (2015) Monolayer-precision synthesis of molybdenum sulfide nanoparticles and their nanoscale size effects in the hydrogen evolution reaction. ACS Nano 9:3728–3739. https://doi.org/10.1021/acsnano.5b00786 CrossRefPubMedGoogle Scholar
- 11.Sun M, Liu H, Qu J, Li J (2016) Earth-rich transition metal phosphide for energy conversion and storage. Adv Energy Mater 6. https://doi.org/10.1002/aenm.201600087
- 31.Zhang R, Ren X, Hao S, Ge R, Liu Z, Asiri AM, Chen L, Zhang Q, Sun X (2018) Selective phosphidation: an effective strategy toward CoP/CeO2 interface engineering for superior alkaline hydrogen evolution electrocatalysis. J Mater Chem A 6:1985–1990. https://doi.org/10.1039/C7TA10237B CrossRefGoogle Scholar
- 34.Mustafa I, Lopez I, Younes H, Susantyoko RA, al-Rub RA, Almheiri S (2017) Fabrication of freestanding sheets of multiwalled carbon nanotubes (buckypapers) for vanadium redox flow batteries and effects of fabrication variables on electrochemical performance. Electrochim Acta 230:222–235. https://doi.org/10.1016/j.electacta.2017.01.186 CrossRefGoogle Scholar
- 35.Britto PJ, Santhanam KSV, Rubio A, Alonso JA, Ajayan PM (1999) Improved charge transfer at carbon nanotube electrodes. Adv Mater 11:154–157. https://doi.org/10.1002/(SICI)1521-4095(199902)11:2<154::AID-ADMA154>3.0.CO;2-B CrossRefGoogle Scholar
- 41.Young J (2017) Non-precious metal catalysts based on carbon nanomaterials for oxygen and hydrogen electrocatalysis. Graduate School of UNIST. https://scholarworks.unist.ac.kr/handle/201301/23556. Accessed 12 Dec 2018
- 47.Ambrosi A, Pumera M (2011) Amorphous carbon impurities play an active role in redox processes of carbon nanotubes. https://doi.org/10.1021/jp209734t
- 53.Karam Z, Susantyoko RA, Alhammadi A, et al (2018) Development of surface-engineered tape-casting method for fabricating freestanding carbon nanotube sheets containing Fe2O3 nanoparticles for flexible batteries. Adv Eng Mater n/a-n/a https://doi.org/10.1002/adem.201701019
- 56.Shah TK, Malecki HC, Basantkumar RR, et al (2014) Carbon nanostructures and methods of making the same. US20140093728 A1Google Scholar
- 57.Das R, Hamid SBA, Ali ME, Yongzhi SR and W (2015) Carbon nanotubes characterization by X-ray powder diffraction – a review. Curr Nanosci. https://doi.org/10.2174/1573413710666140818210043
- 58.Shalom M, Gimenez S, Schipper F, Herraiz-Cardona I, Bisquert J, Antonietti M. (2014) Controlled carbon nitride growth on surfaces for hydrogen evolution electrodes. https://doi.org/10.1002/anie.201309415
- 59.Zhang B, Wang H-H, Su H, Lv LB, Zhao TJ, Ge JM, Wei X, Wang KX, Li XH, Chen JS (2016) Nitrogen-doped graphene microtubes with opened inner voids: highly efficient metal-free electrocatalysts for alkaline hydrogen evolution reaction. Nano Res 9:2606–2615. https://doi.org/10.1007/s12274-016-1147-1 CrossRefGoogle Scholar