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首页> 外文期刊>Chemistry: A European journal >Autonomously Propelled Motors for Value-Added Product Synthesis and Purification
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Autonomously Propelled Motors for Value-Added Product Synthesis and Purification

机译：自主推进电动机，用于增值产品合成和纯化

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摘要

A proof-of-concept design for autonomous, self-propelling motors towards value-added product synthesis and separation is presented. The hybrid motor design consists of two distinct functional blocks. The first, a sodium borohydride (NaBH4) granule, serves both as a reaction prerequisite for the reduction of vanillin and also as a localized solid-state fuel in the reaction mixture. The second capping functional block consisting of a graphene-polymer composite serves as a hydrophobic matrix to attract the reaction product vanillyl alcohol (VA), resulting in facile separation of this edible value-added product. These autonomously propelled motors were fabricated at a length scale down to 400 mm, and once introduced in the reaction environment showed rapid bubble-propulsion followed by high-purity separation of the reaction product (VA) by the virtue of the graphene-polymer cap acting as a mesoporous sponge. The concept has excellent potential towards the synthesis/isolation of industrially important compounds, affinity-based product separation, pollutant remediation (such as heavy metal chelation/adsorption), as well as localized fuel-gradients as an alternative to external fuel dependency.
机译：提出了一种针对自主增产的自动推进电机的概念验证设计，以实现增值产品的合成和分离。混合电机设计包括两个不同的功能块。第一种是硼氢化钠（NaBH4）颗粒，既是还原香兰素的反应先决条件，又是反应混合物中的局部固态燃料。由石墨烯-聚合物复合物组成的第二封端功能块用作疏水基质，以吸引反应产物香草醇（VA），从而可轻松分离这种可食用的增值产品。这些自主推进的电动机的制造规模小至400 mm，一旦引入反应环境，由于石墨烯-聚合物帽的作用，其迅速推进气泡并随后高纯度分离反应产物（VA）作为中孔海绵。该概念在工业上重要化合物的合成/分离，基于亲和力的产品分离，污染物修复（例如重金属螯合/吸附）以及局部燃料梯度（作为对外部燃料依赖性的替代方法）方面具有极好的潜力。

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