本文選題：活性炭　切入點(diǎn)：表面改性　出處：《復(fù)合材料學(xué)報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：為探究表面改性對(duì)活性炭孔結(jié)構(gòu)及熱電轉(zhuǎn)換性能的影響,使用HNO_3和KOH在不同條件下對(duì)活性炭進(jìn)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(jié)構(gòu)和石墨化程度的變化。結(jié)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(jié)構(gòu)。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(zhì)。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(zhuǎn)換性能,發(fā)現(xiàn)改性后活性炭具有更高的熱電轉(zhuǎn)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(xué)機(jī)械結(jié)構(gòu)強(qiáng)度與振動(dòng)國家重點(diǎn)實(shí)驗(yàn)室;哥倫比亞大學(xué)地球與環(huán)境工程系;
【基金】：國家自然科學(xué)基金(11302163;11572239;11572238;11372241) 陜西省自然科學(xué)基金(2015JM1021)
【分類號(hào)】：TM61;TQ424.1
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本文編號(hào)：1578422