会议名称：“2022世界木材日”研讨会暨第四届国际林联（IUFRO）林产品文化研究组讨论会
会议时间：2022年3月21日

报告嘉宾：Jimena Castro Gutiérrez
嘉宾简介：法国科学院-洛林大学让·拉莫尔研究所 博士后研究员

摘要：

The main objective of the thesis was to produce biosourced electrodes for supercapacitors (SCs), which are energy storage devices capable of delivering high power, making them suitable for applications in electric vehicles, as back-up devices or in hybrid systems with batteries. Another objective was to reduce the environmental impact related to the synthesis of materials, generally using hazardous substances. The first approach was therefore to use a biosourced carbon precursor such as mimosa tannin, which is currently extracted industrially from tree barks and used by the leather and wood industries, among others. It would thus be possible to add further value to this wood by-product. The second strategy aimed at developing an 80original, “green” mechanosynthesis method, which ultimately uses only tannin, water and a non-hazardous surfactant. The materials thus produced, mesoporous carbons (MCs) with ordered or disordered mesopores (OMCs or DMCs, respectively), were physically or chemically (KOH) activated in order to test them as SC electrode materials. The in-depth characterization of these materials led to a better understanding of the effect of the order and connectivity of the micro-mesoporous structure on the development of textural properties by the different activation processes and on the electrochemical performance of the SC in aqueous and organic electrolytes.
The characterization also revealed that the tannin-derived MCs can be appropriate for applications beside those of energy storage, for example, as molecular sieve for hydrocarbon separation, as catalysts for the production of vanillin, or, as part of a real-time detector of traces of volatile organic compounds in indoor air.
The results of this study prove that a wood by-product such as tannin is an excellent precursor for the production of model porous carbon materials that are useful for fundamental and applied studies in the fields of energy and environment

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