In this section
@article{Javier:2020:10.1039/C9TA12396B,
author = {Javier, R-G and Kucernak, A and Liu, R and Chakrabarti, B},
doi = {10.1039/C9TA12396B},
journal = {Journal of Materials Chemistry A},
pages = {3933--3941},
title = {Hydrogen/functionalized benzoquinone for a high-performance regenerative fuel cell as a potential large-scale energy storage platform},
url = {http://dx.doi.org/10.1039/C9TA12396B},
volume = {8},
year = {2020}
}
TY - JOUR
AB - The redox flow battery (RFB) is a suitable option for electricity storage due to its high energy efficiency, scalability and relative safety. However, the limited metallic resources for redox materials and the high cost in systems such as the all-vanadium RFB are major challenges for wider application. Organics may be sourced more abundantly and have lower prices than metal based redox couples. In this work a regenerative fuel cell involving relatively inexpensive organic redox couples is demonstrated. The electrochemical properties of 1,2-dihydrobenzoquinone-3,5-disulfonic acid (BQDS) are characterised by cyclic voltammetry and linear-sweep voltammetry under hydrodynamic conditions. A regenerative fuel cell using 0.65 M BQDS in 1 M H2SO4 as positive electrolyte and gaseous hydrogen (1 bar) as negative redox-material results in an open circuit cell voltage of 0.86 V, a power density of 122 mW/cm2, and an energy density of 10.90 Wh L-1 without considering the volume occupied by the hydrogen. Very promising performance with an energy efficiency >60% at 100 mA cm-2 for 200 cycles is reported. New organic redox species resistant to side reactions could facilitate the use of this new system in practical applications. The use of hydrogen may also contribute to reduced side reactions of the organic redox associated with degradation in the presence of oxygen.
AU - Javier,R-G
AU - Kucernak,A
AU - Liu,R
AU - Chakrabarti,B
DO - 10.1039/C9TA12396B
EP - 3941
PY - 2020///
SN - 2050-7488
SP - 3933
TI - Hydrogen/functionalized benzoquinone for a high-performance regenerative fuel cell as a potential large-scale energy storage platform
T2 - Journal of Materials Chemistry A
UR - http://dx.doi.org/10.1039/C9TA12396B
UR - https://pubs.rsc.org/en/content/articlelanding/2020/TA/C9TA12396B#!divAbstract
UR - http://hdl.handle.net/10044/1/75985
VL - 8
ER -
Prof. Anthony Kucernak
G22B
Molecular Sciences Research Hub (MSRH)
Imperial College London
White City Campus
London
W12 0BZ
United Kingdom
Phone: +44 (0)20 7594 5831
Fax: +44 (0)20 7594 5804
Email: anthony@imperial.ac.uk