| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
A Fe-appended graphene oxide nanosheet facilitating water dissociation for efficient bipolar membrane |
| 초록 |
In bipolar membrane for water dissociation, the catalyst is a key role for an efficient water dissociation reaction. The graphene oxide(GO) is widely known as water dissocaition catalyst due to the interaction between water molecules and functional groups in graphene oxide. To enhance the catalytic properties, here in, we introduced Fe(OH)3 nanoparticles in graphene oxide for efficient water in bipolar membrane. The synergitic interaction between H2O and GO/Fe(OH)3 catalyst significantly enhanced the water dissociation reaction. As a result, a newly developed water dissociation catalyst sharply reduced a membrane overpotential from 2.65 V to 1.13 V at 100 mA/cm2 compared to bipolar membrane without catalyst. Such improvement was investigated by the electrochemical impedance spectroscopy (EIS) using specific parameters such as ion transport resistance (Rw) and rate constant of water dissociation(kd). |
| 저자 |
김병수1, 박슬찬1, 김도형2, 문기현1, 강문성2, 강용수1
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| 소속 |
1한양대, 2상명대 |
| 키워드 |
water splitting; bipolar membrane; electrochemical impedance spectroscopy; catalyst
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| E-Mail |
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