Abstract

The possibility of using aspen bark modified with zinc and iron chlorides for preparing highly porous materials with specific properties was examined. The effect of the treatment temperature and modifiers on the structural and electrochemical parameters of the carbon-containing product was revealed. Carbonization of aspen bark modified with ZnCl₂ yielded a material with the specific surface area of up to 1350 m² g^–1, containing a crystalline zinc oxide phase. The material obtained using a mixture of aspen bark with FеCl₃ had the specific surface area of up to 300 m² g^–1 and contained magnetite and maghemite. Modification of the bark with zinc and iron chlorides simultaneously yielded a highly porous product with ferromagnetic properties. The apparent capacitance of the samples carbonized at 800°С was found to be 150–400 F g^–1. The possibility of using these materials in electrochemical devices was suggested.

中文翻译：

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锌铁氯化物修饰的白杨树皮含碳材料的制备及其结构和电化学性能

摘要

研究了使用氯化锌和氯化铁改性的白杨树皮制备具有特定性能的高多孔性材料的可能性。揭示了处理温度和改性剂对含碳产物的结构和电化学参数的影响。用ZnCl ₂改性的白杨树皮碳化后，得到一种比表面积高达1350 m ² g ^{–1的材料}，其中含有结晶的氧化锌相。使用具有FеCl白杨树皮的混合物获得的材料₃具有向上的比表面积300米²克^-1并含有磁铁矿和磁铁矿。用氯化锌和氯化铁对树皮进行改性，同时生产出具有铁磁特性的高度多孔的产品。在800°С碳化的样品的表观电容为150–400 F g ^–1。建议在电化学装置中使用这些材料的可能性。