Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China.
College of New Materials and New Energies, Shenzhen Technology University, Shenzhen, 518118, P. R. China.
Nanoscale. 2023 Jan 27;15(4):1947-1952. doi: 10.1039/d2nr06138d.
Low-temperature fuel cells have great application potential in electric vehicles and portable electronic devices, which need advanced electrocatalysts. Controlling the composition and morphology of electrocatalysts can effectively improve their catalytic performance. In this work, a Rh metallene (Rhlene)-supported Pt nanoparticle (Pt/Rhlene) electrocatalyst is successfully synthesized by a simple chemical reduction method, in which ultra-small Pt nanoparticles are uniformly attached to the Rhlene surface due to the high surface area of Rhlene. Pt/Rhlene reveals a 3.60-fold Pt-mass activity enhancement for the ethylene glycol oxidation reaction in alkaline solution compared with commercial Pt black, and maintains high stability and excellent poisoning-tolerance during electrocatalysis, owing to the specific physical/chemical properties of Rhlene. The superior electrocatalytic performance of Pt/Rhlene may open an avenue to synthesize other metallene-supported noble metal nanoparticle hybrids for various electrocatalytic applications.
低温燃料电池在电动汽车和便携式电子设备等领域具有巨大的应用潜力，而这些领域需要先进的电催化剂。控制电催化剂的组成和形态可以有效地提高其催化性能。在这项工作中，我们通过一种简单的化学还原方法成功合成了一种 Rh 金属烯（Rhlene）负载的 Pt 纳米粒子（Pt/Rhlene）电催化剂，由于 Rhlene 的高表面积，超小的 Pt 纳米粒子均匀地附着在 Rhlene 表面。与商业 Pt 黑相比，Pt/Rhlene 在碱性溶液中对乙二醇氧化反应的 Pt 质量活性提高了 3.60 倍，并且由于 Rhlene 的特殊物理/化学性质，在电催化过程中保持了高稳定性和优异的抗中毒性。Pt/Rhlene 的优异电催化性能可能为合成其他金属烯负载的贵金属纳米粒子杂化物开辟了道路，用于各种电催化应用。
