限域型贵金属氧还原反应电催化剂研究进展
Recent progress in confined noble-metal electrocatalysts for oxygen reduction reaction
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 |
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Recent progress in confined noble-metal electrocatalysts for oxygen reduction reaction |
| Yezhou HU, Shuang WANG, Tao SHEN, Ye ZHU, Deli WANG |
| 图4 金属氧化物限域。(a) ZrO2 限域的Pt纳米颗粒制备示意图; (b) ALDPt/NCNT、ALD50ZrO2-Pt/NCNT600 ℃和E-TEK Pt/C三种催化剂在不同循环圈数下的ECSA变化曲线；(c) 经过加速循环稳定性测试后的ALD50ZrO2-Pt/NCNT的STEM图；(d) MgO包覆的fcc-FePt纳米颗粒；(e) 去除MgO包覆层后的fct-FePt纳米颗粒；(f) 0.5 mol/L H2SO4 溶液中，fcc-FePt与fct-FePt催化剂中Fe含量随时间变化曲线；(g)～(h) 氧化铁包覆的Pd2FeCo/C催化剂低倍下的STEM图；(i) Pd2FeCo/C与Pd/C催化剂循环前后的ORR性能对比 |
| Fig. 4 Metal oxides confinement. (a) Schematic diagram of ZrO2 confined Pt nanoparticles; (b) The normalized ECSA of ALDPt/NCNT, ALD50ZrO2-Pt/NCNT600 ℃ and E-TEK Pt/CPMTT at different cycling stages; (c) The STEM image of ALD50ZrO2-Pt/NCNT after stability test; (d) MgO confined fcc-FePt nanoparticles; (e) fct-FePt nanoparticles after removal of MgO; (f) The Fe composition in fcc-FePt/C and fct-FePt/C at different times; (g)—(h) STEM images of Fe2O3 confined Pd2FeCo nanoparticles; (i) The stability test of Pd2FeCo/C and Pd/C |
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