Pt/C and Pt₉Bi₁/C catalysts are synthesized by wet chemistry, characterized by physicochemical and electrochemical methods, and evaluated towards glucose and methyl-glucoside electrooxidation in alkaline medium. Pt₉Bi₁/C leads to onset potentials 150 to 350 mV lower than those recorded on Pt/C for glucose and methyl-glucoside oxidation, respectively. From in situ infrared spectroscopy, main reaction products of glucose and methyl-glucoside oxidation are gluconate and methyl-glucuronate, respectively. Chronoamperometry is performed for 6 h in a 25-cm² electrolysis cell fitted with a Pt₉Bi₁/C anode to oxidize 18.0 g L⁻¹ glucose and 19.4 g L^-1 methyl-glucoside at cell voltages of 0.30 V and 0.50 V, respectively, and a Pt/C cathode to produce hydrogen. Analyses of the reaction products by high-performance liquid chromatography, by ¹³C nuclear magnetic resonance, and by mass spectroscopy indicate that gluconate and methyl-glucuronate are formed with 100% faradaic efficiency and 100% selectivity at 40% glucose and 37% methyl-glucoside conversions, respectively.

通过湿化学合成Pt / C和Pt ₉ Bi ₁ / C催化剂，通过物理化学和电化学方法表征，并在碱性介质中对葡萄糖和甲基葡糖苷的电氧化进行了评估。Pt ₉ Bi ₁ / C导致的起始电势比葡萄糖和甲基葡萄糖苷氧化分别记录在Pt / C上的起始电势低150-350 mV。从原位红外光谱学来看，葡萄糖和甲基葡糖苷氧化的主要反应产物分别是葡糖酸盐和葡糖醛酸甲酯。在装有Pt ₉ Bi ₁ / C阳极以氧化18.0 g L ^-1的25-cm ²电解槽中进行计时安培6 h电池电压分别为0.30 V和0.50 V的葡萄糖和19.4 g L ^-1甲基葡萄糖苷，以及一个Pt / C阴极以产生氢气。通过高效液相色谱，¹³ C核磁共振和质谱对反应产物进行的分析表明，在40％葡萄糖和37％甲基葡萄糖的情况下，形成的葡萄糖酸盐和葡萄糖醛酸甲酯的法拉第效率为100％，选择性为100％。葡萄糖苷转化分别。