| 학회 |
한국재료학회 |
| 학술대회 |
2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 |
24권 2호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
Eco-friendly cellulose based solid electrolyte with high performance and enhanced low humidity performance by hybridizing with aluminum fumarate MOF |
| 초록 |
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. |
| 저자 |
Jaeok Ko1, Seong Ku Kim1, Yeoheung Yoon1, Kyung Ho Cho1, Wooseok Song1, Tae-Ho Kim1, Sung Myung1, Sun Sook Lee1, Young Kyu Hwang1, Sang-Woo Kim2, Ki-Seok An1
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| 소속 |
1Korea Research Institute of Chemical Technology, 2SKKU |
| 키워드 |
<P>cellulose; solid electrolyte; chemical functionalization; polymer electrolyte; metal organic frameworks</P>
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| E-Mail |
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