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| Type |
Poster Presentation |
| Area |
재료화학 |
| Room No. |
포스터발표장 |
| Time |
4월 21일 (금요일) 13:00~14:30 |
| Code |
MAT.P-373 |
| Subject |
High-Performance Electrocatalytic Oxygen Evolution of NiFeZn Layered Double Hydroxide |
| Authors |
정가빈, 박정희1,*
고려대학교 미세소자협동과정/마이크로소자, Korea
1고려대학교 소재화학과, Korea
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| Abstract |
Highly active and low-cost electrocatalysts for water oxidation are required due to the urgent demands on sustainable solar fuels. However, developing highly efficient catalysts to meet industrial requirements remains a challenge. Layered double hydroxides (LDHs) are a class of layered materials, in which the positively charged layers contain alternately arranged metal cations (they are commonly divalent and trivalent, although monovalent metal cations are also known) balanced by charge-compensating anions positioned within the interlayer space. Due to the rapid development of electrocatalysts, the study of LDHs for oxygen evolution reaction has attracted much attention. Herein, we report a nickel–iron-zinc-layered double hydroxide that shows a current density of 10 mA cm-2 at an overpotential of 350 mV. Such performance is comparable to those of the best-performing nickel–iron-layered double hydroxides for water oxidation. The nickel–iron-zinc-layered double hydroxides can provide high catalytic activity, mainly due to the enhanced conductivity, facile electron transfer and abundant active sites. Our works may expand the scope of cost-effective electrocatalysts for water splitting. |
| E-mail |
jgb0003@gmail.com |
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119th General Meeting of the KCS