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首页> 外文期刊>RSC Advances >Carbon supported Rh nanoparticles for the production of hydrogen and chemicals by the electroreforming of biomass-derived alcohols
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Carbon supported Rh nanoparticles for the production of hydrogen and chemicals by the electroreforming of biomass-derived alcohols

机译：碳负载的Rh纳米颗粒，用于通过生物转化衍生的醇进行电重整来生产氢气和化学品

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Electroreforming is a low energy cost technology that combines the production of valuable chemicals from biomass-derived alcohols with the evolution of clean hydrogen at low temperature and atmospheric pressure. The selectivity for the desired chemicals is governed by the nature of the anode catalyst. Here we report the synthesis and characterization of a carbon supported nanostructured Rh electrocatalyst. The Rh nanoparticles are shown to be highly dispersed (2.2 nm) and a complete electrochemical study is reported. This Rh/C catalyst exhibits high activity for alcohol electrooxidation (e.g. 5700 A gRh for EG at 80 °C) and when employed with an anion exchange membrane and Pt/C cathode in an electroreformer produces high volumes of hydrogen at low electrical energy input (e.g. 500 mA cm?2 at 0.7 Vcell and Ecost = 9.6 kW h kgH2?1). A complete analysis of the alcohol oxidation products from several renewable alcohols (ethanol, ethylene glycol, glycerol and 1,2-propandiol) shows a selectivity in the formation of valuable chemicals such as lactate and glycolate.
机译：电重整是一种低能耗技术，将生物质衍生的醇产生的有价值的化学物质与在低温和大气压下释放出干净的氢气相结合。所需化学药品的选择性取决于阳极催化剂的性质。在这里我们报告了碳载纳米结构Rh电催化剂的合成和表征。 Rh纳米颗粒显示出高度分散性（2.2 nm），并报道了完整的电化学研究。这种Rh / C催化剂在80°C的乙醇中表现出很高的醇电氧化活性（对于EG，例如 5700 A g Rh ）。阴离子交换膜和电重整器中的Pt / C阴极在低电能输入（例如 500 mA cm ？2 时）产生大量氢气0.7 V cell 和 E cost = 9.6 kW h kg < sub> H 2 ？1 ）。对几种可再生醇（乙醇，乙二醇，甘油和1,2-丙二醇）中醇氧化产物的完整分析表明，在形成有价值的化学物质（如乳酸和乙醇酸）时具有选择性。

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