College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China.
College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China.
J Colloid Interface Sci. 2022 Feb 15;608(Pt 1):800-808. doi: 10.1016/j.jcis.2021.10.054. Epub 2021 Oct 13.
Electro-oxidation of glycerol is a key anodic reaction in direct alcohol fuel cell (DAFCs). Exploring the cost-effective nanocatalysts for glycerol oxidation reaction (GOR) is very important for the development of DAFC, but it is still challenging. In this paper, nanofirework-like PtRu alloy catalyst was successfully synthesized and used for GOR in alkaline medium. Thanks to the unique nanofirework-like structure and synergetic effects, the activity and stability of the as-prepared PtRu alloy nanofireworks (NFs) toward GOR were significantly improved relative to Pt NFs. In particular, the peak current density of GOR catalyzed by the optimized PtRu NFs catalyst reached 2412.0 mA mg, surpassing that of commercial Pt/C catalyst. This work has important guidance for the design of advanced anode electrocatalysts for fuel cells.
电氧化甘油是直接醇燃料电池（DAFCs）中一个关键的阳极反应。探索用于甘油氧化反应（GOR）的具有成本效益的纳米催化剂对于 DAFC 的发展非常重要，但这仍然具有挑战性。在本文中，成功合成了纳米烟花状 PtRu 合金催化剂，并将其用于碱性介质中的 GOR。得益于独特的纳米烟花状结构和协同效应，与 Pt NF 相比，所制备的 PtRu 合金纳米烟花（NFs）对 GOR 的活性和稳定性得到了显著提高。特别是，优化后的 PtRu NFs 催化剂催化 GOR 的峰值电流密度达到 2412.0 mA mg，超过了商业 Pt/C 催化剂。这项工作对燃料电池先进阳极电催化剂的设计具有重要的指导意义。
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