| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
(콜로이드·계면화학) 무기물 기반 콜로이드 물질의 제조와 응용 |
| 제목 |
Rational Molecular Design of Polymeric Materials Toward Efficient Triboelectric Energy Harvesting |
| 초록 |
Halogenated carbon-based polymers are widely known as extremely negative triboelectric polymers. The negative triboelectric characteristics of these polymers originated from large electron affinity (EA=-270~-349 kJ/mol) of halogenic elements, allowing the polymers to accommodate extra electrons. In case of the PTFE, two carbon bonds are sacrificed to construct polymeric backbone, instead of chemically bonding with halogenic elements. Herein, we employed inverse-vulcanized sulfur-based polymers to have maximum of four chemical bonding with halogenic elements via hypervalency of sulfur. In addition to the two extra halogenic elements per sulfur in comparison with carbon, electron affinity of sulfur (EA=-200 kJ/mol) is significantly larger that that of carbon (EA=-122 kJ/mol). We report 3 folds increase in triboelectric energy outputs in both voltage and currents in comparison with commercial PTFE film with the novel yellow-chemistry based inorganic polymers. |
| 저자 |
위정재 |
| 소속 |
인하대 |
| 키워드 |
Triboelectric energy harvesting; Hypervalency; Yellow chemistry; Inverse vulcanization; Surface modification
|
| E-Mail |
|
