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首页> 外文期刊>Chemistry: A European journal >Chemical and Structural Properties of Carbonaceous Products Obtained by Hydrothermal Carbonization of Saccharides
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Chemical and Structural Properties of Carbonaceous Products Obtained by Hydrothermal Carbonization of Saccharides

机译：糖的水热碳化获得的碳质产物的化学和结构性质

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摘要

A carbon-rich solid product, here denoted as hydrochar, has been synthesized by, the hydrothermal carbonization of three different saccharide (glucose, sucrose, and starch) at temperatures ranging from 170 to 240 degrees C. This material is made up of uniform spherical micrometer-sized particles that have a diameter in the 0.4-6 mu m range, which can be modulated by modifying the synthesis conditions (i.e., the concentration of the aqueous saccharide solution, the temperature of the hydrothermal treatment, the reaction time, and type of saccharide. The formation of the carbon-rich solid through the hydrothermal carbonization of saccharides is the consequence of dehydration, condensation, of polymerization and aromatization reactions. The microspheres thus obtained posess from a chemical point of view, a core-shell structure consisting of a highly aromatic nucleus (hydrophobic) and a hydrophilic shell containing a high concentration of reactive oxygen functional groups (i.e., hydroxyl/phenolic, carbonyl, or carboxylic).
机译：通过在170到240摄氏度的温度下对三种不同的糖类（葡萄糖，蔗糖和淀粉）进行水热碳化，合成了一种富含碳的固体产品（此处称为水炭）。该材料由均匀的球形材料制成。直径在0.4-6微米范围内的微米级颗粒，可以通过修改合成条件（即糖水溶液的浓度，水热处理的温度，反应时间和类型）进行调节通过糖的水热碳化形成富含碳的固体是脱水，缩合，聚合和芳构化反应的结果，如此获得的微球从化学角度出发构成了由高度芳香的核（疏水）和亲水壳，其中含有高浓度的活性氧官能团（即，羟基/ p酚，羰基或羧酸）。

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