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Synthesis of H2O2–CTAB dual-modified carbon black-supported Pt3Ni to improve catalytic activity for ORR
Journal of Materials Science ( IF 4.5 ) Pub Date : 2020-05-19 , DOI: 10.1007/s10853-020-04808-y
Yinlei Li , Fanghui Wang , Hong Zhu

In this study, a rapid and effective strategy was developed to facilitate the preparation of dual-modified carbon black (CB) support for the deposition of Pt3Ni catalysts. The H2O2 and cetyltrimethylammonium bromide were taken as the modifying agents. The surface chemical and structural properties of CBs were characterized by a combination of BET, XRD, Raman, HRTEM and zeta potential. As revealed by the results, the dual-modified CB shows not only a large BET surface area of 388 m2/g but also a uniform distribution of Pt3Ni nanoparticles. In addition, an investigation was conducted on the effect of dual-modified CB on the activity that the Pt3Ni supported on catalyst was involved in. The Pt3Ni supported on dual-modified CB shows a remarkable catalytic activity and high stability in comparison with the other catalysts in the present study. Besides, the dual-modified method contributes possibility to prepare the catalysts for PEMFCs on a large scale under laboratory conditions.

中文翻译:

合成 H2O2-CTAB 双改性炭黑负载 Pt3Ni 以提高 ORR 催化活性

在这项研究中,开发了一种快速有效的策略,以促进制备用于 Pt3Ni 催化剂沉积的双改性炭黑 (CB) 载体。以H2O2和十六烷基三甲基溴化铵为改性剂。CBs 的表面化学和结构特性通过 BET、XRD、拉曼、HRTEM 和 zeta 电位的组合进行表征。结果表明,双改性 CB 不仅显示出 388 m2/g 的大 BET 表面积,而且还显示出均匀分布的 Pt3Ni 纳米颗粒。此外,研究了双改性CB对负载在催化剂上的Pt3Ni所参与的活性的影响。与其他催化剂相比,双改性CB负载的Pt3Ni表现出显着的催化活性和高稳定性在目前的研究中。除了,
更新日期:2020-05-19
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