限域型贵金属氧还原反应电催化剂研究进展 |
胡冶州, 王双, 申涛, 朱叶, 王得丽 |
Recent progress in confined noble-metal electrocatalysts for oxygen reduction reaction |
Yezhou HU, Shuang WANG, Tao SHEN, Ye ZHU, Deli WANG |
图3 非金属氧化物限域。(a) 以TEOS为硅源得到的多孔SiO2 限域的Pt/CNT催化剂(SiO2/Pt/CNT);不同循环圈数下SiO2/Pt/CNT的 (b) CV曲线对比及 (c) ECSA变化曲线;(d)~(e) 以MTEOS为硅源得到的SiO2 限域的Pt/CNT催化剂[SiO2/Pt/CNT(MTEOS)];(f) SiO2/Pt/CNT(MTEOS)循环不同圈数后的LSV曲线;(g) MMT限域的Pt纳米颗粒(Pt/e-MMT)示意图;(h) Pt/e-MMT和(i) Pt/C催化剂循环前后的CV曲线对比及ECSA大小变化 |
Fig. 3 Inorganic oxide confinement. (a) TEM image of SiO2/Pt/CNT using TEOS as precursor; (b) CV curves and (c)ECSA change of SiO2/Pt/CNT at different potential cycles, (d)—(e) TEM images of SiO2/Pt/CNT(MTEOS) using MTEOS as precursor; (f) ORR stability test of SiO2/Pt/CNT(MTEOS); (g) TEM image of Pt/e-MMT; The CV curves of (h) Pt/e-MMT and (i) Pt/C before and after stability tests |
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