Abundant yet undeveloped, cellulose and various derivatives of cellulose are materials that we see and touch every day. Here, we report a novel polymer proton conducting electrolyte synthesized by chemical modification of hydroxypropyl cellulose, which opens a new possibility of utilizing a renowned environmental friendly material for environmentally friendly applications. The modified cellulose by attaching sulfonic acid functional groups exhibits proton conductivity of 172 mS/cm at room temperature under 100% relative humidity with negligible electron or hole leakage through the membrane. By hybridizing the modified cellulose with aluminum fumarate metal-organic-framework (A520), dehydration of the cellulose based electrolyte membrane is significantly moderated to enhance low humidity conductivity by more than an order of magnitude. The A520 hybridized sulfonated cellulose is utilized as the electrolyte for all-solid-state supercapacitor, which demonstrated specific capacitance as high as 135.14 F/g at 75% relative humidity with stable performance even at low humidity.
|Number of pages||8|
|Journal||Materials Today Energy|
|Publication status||Published - 2018 Sept|
Bibliographical noteFunding Information:
This work was supported by the Korea Research Fellowship (KRF) Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT ( NRF-2016H1D3A1938211 ) as well as Multi-Ministry Collaborative R&D Program through the National Research Foundation of Korea (NRF) funded by KNPA, MSIT, MOTIE, ME, NFA ( NRF-2017M3D9A1073858 ). We thank Dr. Jong-San Chang for his fruitful discussion and comments.
© 2018 Elsevier Ltd
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Materials Science (miscellaneous)
- Nuclear Energy and Engineering
- Fuel Technology
- Energy Engineering and Power Technology