本文選題：活性炭　切入點：表面改性　出處：《復合材料學報》2017年05期 　論文類型：期刊論文

【摘要】：為探究表面改性對活性炭孔結構及熱電轉換性能的影響,使用HNO_3和KOH在不同條件下對活性炭進行表面改性,用N2吸附法和XRD圖譜表征活性炭改性前后孔結構和石墨化程度的變化。結果表明,改性后活性炭的比表面積和孔容提高,平均孔徑減小,并存在石墨晶體結構。干法改性活性炭的比表面積和總孔容由1 077.880m~2/g和0.763cm~3/g分別增加到1 635.268m~2/g和1.128cm~3/g,并且微孔的孔容增加。改性處理可以去除活性炭中的雜質。分別以改性前后活性炭為材料制備固體電極,KCl為電解液,測試活性炭電極的熱電轉換性能,發(fā)現(xiàn)改性后活性炭具有更高的熱電轉換性能。
[Abstract]:In order to investigate the surface modification effect on pore structure and thermoelectric conversion activity, the use of HNO_3 and KOH under different conditions on the activated carbon surface modification, modification of pore structure and the graphitization degree of N2 adsorption and XRD spectrum characterization of activated carbon. The results show that the specific surface area and improve Kong Rong the modified activated carbon, the average pore size decreases, and the existence of graphite crystal structure. The dry modification of activated carbon surface area and total pore volume by 1 077.880m~2/g and 0.763cm~3/g were increased to 1 635.268m~2/g and 1.128cm~3/g, and the micro pore volume increased. The modification can remove impurities in activated carbon to change respectively. The activated carbon materials for the preparation of solid KCl electrode, electrolyte, thermoelectric conversion performance test of activated carbon electrode, we found that the modified activated carbon has higher thermoelectric conversion performance.

【作者單位】： 西安交通大學機械結構強度與振動國家重點實驗室;哥倫比亞大學地球與環(huán)境工程系;
【基金】：國家自然科學基金(11302163;11572239;11572238;11372241) 陜西省自然科學基金(2015JM1021)
【分類號】：TM61;TQ424.1
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本文編號：1578422