使用电催化剂氧化葡萄糖通过Ta NiFe LDH电极生产H2和葡萄糖酸
Meysam Tayebi1, Zohreh Masoumi2, Bongkuk Seo1
1Center for Specialty Chemicals, Division of Specialty and Bio-Based Chemicals Technology, Korea Research Institute of Chemical Technology (KRICT), Jonggaro 45, Ulsan 44412, Republic of Korea.
ACS applied materials & interfaces
|May 10, 2024
概括
这项研究引入了一种用于氧化葡萄糖的新型电催化剂,产生有价值的葡萄糖酸和气. 这种方法为可持续的生产提供了对传统水分的节能替代方案.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 氧化演化反应 (OER) 是电催化水分裂以产生的瓶.
- 价值化生物质衍生葡萄糖为可持续化学合成和能源生产提供了机会.
研究的目的:
- 开发一种高效的电催化剂,用于与演化反应 (HER) 相结合的葡萄糖氧化反应 (GOR).
- 为了利用Ta-doped NiFe层叠双氧化物 (LDH) 纳米片,同时生产葡萄糖酸 (GRA) 和气.
主要方法:
- 在泡 (NF) 上合成TA-化NiFe LDH纳米片,作为电极.
- 电化学表征包括循环电压测量和时电压测量.
- 分析葡萄糖氧化产品和法拉第效率.
主要成果:
- 优化的Ta-NiFe LDH催化剂表现出极好的GOR活性,具有较低的超电位 (192 mV) 和Tafel斜率 (70 mV dec-1).
- 获得了72.94%的产量和64.3%的Faradaic效率,用于从1.45VRHE的葡萄糖氧化中产生GRA.
- 与OER&HER (1.87 V) 相比,Ta NiFe LDH/NF电极在10 mA cm−2.2.0 时显示了GOR&HER的电池电压 (1.62 V) 低于OER&HER的电压 (1.87 V).
结论:
- 化NiFe LDH是一种高效的电催化剂,用于同时氧化葡萄糖到GRA和生产气.
- GOR与HER相结合,为生产气和利用生物质提供了节能和成本效益的途径.
- 这种方法提供了一种可持续的替代方案,而不是传统的水分为产生.
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