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首页> 外文期刊>International Journal of Electrochemical Science >Advanced Electrocatalytic Performance of Activated Carbon Prepared from Asphalt
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Advanced Electrocatalytic Performance of Activated Carbon Prepared from Asphalt

机译：沥青制备的活性炭的先进电催化性能

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摘要

In the present work, nitric and sulfuric acids were used for the chemical conversion of asphalt to activated carbon (AC) powder. An extremely high cation exchange capacity was obtained under the following conditions: no airflow rate injection and ratio of acid/asphalt, 30 wt%. When the pH was ca. 3 (initial pH range of 3 to 10), a stable zero point of charge was observed for the obtained product. The final composites showed the following integrated advantages: the effectiveness of the oxygen reduction reaction (ORR) active sites and the excellence of the electrical conductivity. The final material can be used not only as an effective metal-free electrode material but also as a competitive substitute material for the recently discovered Pt/C catalyst given the remarkable electrochemical activity toward ORR observed under alkaline conditions.
机译：在本工作中，硝酸和硫酸用于将沥青化学转化为活性炭（AC）粉。在以下条件下获得了极高的阳离子交换容量：无气流速率注入和酸/沥青比为30 wt％。当pH为约。如图3所示（初始pH范围为3至10），对于所得产物观察到稳定的零电荷点。最终的复合材料显示出以下综合优势：氧还原反应（ORR）活性位点的有效性和出色的电导率。考虑到在碱性条件下观察到的显着的ORR电化学活性，最终材料不仅可以用作有效的无金属电极材料，而且还可以用作最近发现的Pt / C催化剂的竞争性替代材料。

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