In this contribution, we review the electrochemical upgrading of saccharides (e.g., glucose) and sugar alcohols (e.g., glycerol) on metal and metal-oxide electrodes by drawing conclusions on common trends and differences between these two important classes of biobased compounds. For this purpose, we critically review the literature on the electrocatalytic oxidation of saccharides and sugar alcohols, seeking trends in the effect of reaction conditions and electrocatalyst design on the selectivity for the oxidation of specific functional groups toward value-added compounds. Importantly, we highlight and discuss the competition between electrochemical and non-electrochemical pathways. This is a crucial and yet often neglected aspect that should be taken into account and optimized for achieving the efficient electrocatalytic conversion of monosaccharides and related sugar alcohols into valuable products, which is a target of growing interest in the context of the electrification of the chemical industry combined with the utilization of renewable feedstock.

中文翻译：

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单糖和相关糖醇电催化氧化成有价值产物中的电化学和非电化学途径


在这篇论文中，我们回顾了金属和金属氧化物电极上糖类（例如葡萄糖）和糖醇（例如甘油）的电化学升级，并得出了这两类重要生物基化合物之间的共同趋势和差异的结论。为此，我们批判性地回顾了有关糖类和糖醇电催化氧化的文献，寻找反应条件和电催化剂设计对特定官能团氧化为增值化合物的选择性影响的趋势。重要的是，我们强调并讨论了电化学和非电化学途径之间的竞争。这是一个关键但经常被忽视的方面，应该考虑到并进行优化，以实现单糖和相关糖醇的高效电催化转化为有价值的产品，这是在化学工业电气化结合可可替代原料利用的背景下越来越感兴趣的目标。