Highly Selective Oxidation of Carbohydrates in an Efficient Electrochemical Energy Converter: Cogenerating Organic Electrosynthesis

作者：Holade Yaovi; Servat Karine; Nap**** Teko W; Morais Claudia; Berjeaud Jean Marc; Kokoh Kouakou B^*

来源：Chemsuschem, 2016, 9(3): 252-263.

DOI：10.1002/cssc.201501593

• carbohydrates
• electrochemistry
• energy conversion
• fuel cells
• heterogeneous catalysis

The selective electrochemical conversion of highly functionalized organic molecules into electricity, heat, and added-value chemicals for fine chemistry requires the development of highly selective, durable, and low-cost catalysts. Here, we propose an approach to make catalysts that can convert carbohydrates into chemicals selectively and produce electrical power and recoverable heat. A 100% Faradaic yield was achieved for the selective oxidation of the anomeric carbon of glucose and its related carbohydrates (C1-position) without any function protection. Furthermore, the direct glucose fuel cell (DGFC) enables an open-circuit voltage of 1.1V in 0.5m NaOH to be reached, a record. The optimized DGFC delivers an outstanding output power P-max=2mWcm(-2) with the selective conversion of 0.3m glucose, which is of great interest for cogeneration. The purified reaction product will serve as a raw material in various industries, which thereby reduces the cost of the whole sustainable process.

• 出版日期2016-2-8