Electro-Oxidation of Glycerol to High-Value-Added C1–C3 Products by Iron-Substituted Spinel Zinc Cobalt Oxides,ACS Applied Materials & Interfaces

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Electro-Oxidation of Glycerol to High-Value-Added C1–C3 Products by Iron-Substituted Spinel Zinc Cobalt Oxides
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2022-03-15 , DOI: 10.1021/acsami.2c02215
Haibo Wan _{1,

2} , Chencheng Dai _{2,

3} , Liujun Jin ₁ , Songzhu Luo ₂ , Fanxu Meng ₂ , Gao Chen ₂ , Yan Duan ₂ , Chuntai Liu ₄ , Qingfeng Xu ₁ , Jianmei Lu ₁ , Zhichuan J Xu _{2,

3}

Affiliation

Glycerol is a byproduct of biodiesel production and can be a low-cost source for some high-value C1–C3 chemicals. The conversion can be achieved by photo-, thermo-, and electro-catalysis methods. The electrocatalytic oxidation method is attractive due to its moderate reaction conditions and high electron to product efficiency. Most reported catalysts are based on noble metals, while metal oxides are rarely reported. Here, we investigated the electro-oxidation of glycerol on a series of ZnFe_xCo_2–xO₄ (x = 0, 0.4, 1.0, 1.4, and 2.0) spinel oxides. Seven types of value-added C1–C3 products including formate, glycolate, lactate, and glycerate can be obtained by this approach. The selectivity and Faraday efficiency toward these products can be tuned by adjusting the Fe/Co ratio and other experimental parameters, such as the applied potential, glycerol concentration, and electrolyte pH.

中文翻译：

铁取代的尖晶石锌钴氧化物将甘油电氧化成高附加值的 C1-C3 产品

甘油是生物柴油生产的副产品，可以作为一些高价值 C1-C3 化学品的低成本来源。转化可以通过光催化、热催化和电催化方法实现。电催化氧化方法因其温和的反应条件和高电子对产物的效率而具有吸引力。大多数报道的催化剂是基于贵金属的，而很少报道金属氧化物。在这里，我们研究了甘油在一系列 ZnFe _x Co _{2– x} O ₄ ( x= 0、0.4、1.0、1.4 和 2.0) 尖晶石氧化物。通过这种方法可以获得甲酸盐、乙醇酸盐、乳酸和甘油酸盐7种增值C1-C3产品。对这些产品的选择性和法拉第效率可以通过调整 Fe/Co 比和其他实验参数来调整，例如施加的电位、甘油浓度和电解质 pH 值。

更新日期：2022-03-15

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