FeNi-LDH涂有色皮碳气凝,用于氧气进化反应
Yang Teng1, Peng-Cheng Ji1, Hai-Lang Jia1
1School of Chemistry and Chemical Engineering, Annlysis and Testing Center of Jiangsu University of Technology, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, P. R. China.
ChemSusChem
|July 26, 2024
概括
废弃的皮被转化为一种新型催化剂 (FeNi-LDH/CA),以实现高效的氧化演化和水分裂. 这种皮衍生催化剂的性能优于商业RuO2,并且在可充电的空气电池中表现出色的稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 催化剂是一种催化剂.
背景情况:
- 开发高效且具有成本效益的催化剂对于电化学应用,如水分和能源储存至关重要.
- 废物材料,如子皮,为创建基于碳的先进材料提供了可持续的来源.
- 铁层双氧化物 (FeNi-LDH) 是有前途的电催化剂,但可以从结构修改中获益,以提高性能.
研究的目的:
- 使用废弃的皮合成一种新型的碳涂层铁层双氧化催化剂 (FeNi-LDH/CA).
- 评估FeNi-LDH/CA的氧化演化反应 (OER) 的电催化性能.
- 评估FeNi-LDH/CA作为可充电液空气电池中的催化剂的性能.
主要方法:
- 废弃的皮被烧化以获得碳来源.
- 皮碳气凝在铁层的双氧化物 (FeNi-LDH) 上在现场生长,形成FeNi-LDH/CA.
- 用于OER的FeNi-LDH/CA的电化学表征及其在空气电池中的应用.
主要成果:
- 尼-LDH/CA表现出优异的OER催化性能,在10 mA cm-2的1M KOH中仅有250 mV的超电位,超过商业RuO2 (295 mV).
- 催化剂表现出卓越的循环稳定性,在100小时的100mA cm-2.2操作后,性能衰减仅为3%.
- 在水分裂中,FeNi-LDH/CA作为阳极只需要1.48V在10mA cm-2.2的电压下. 使用Pt/C-FeNi-LDH/CA的空气电池显示高开路电压 (1.543V) 和稳定的循环,电压间隙很小.
结论:
- 由废弃的皮制成的FeNi-LDH/CA催化剂是OER的高效和稳定的电催化剂.
- 这种新材料显著提高了可充电液空气电池的性能.
- 该研究强调了利用农业废物用于可持续能源应用的潜力.
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