高效氧还原电催化剂的开发取得了显著进展,它们是燃料电池的重要组成部分。然而,这些优越的活动受到不平衡的质量传输的限制,不能充分反映在实际的燃料电池应用。在这里,我们介绍了铂-纳米碳混合催化剂的设计概念和发展轨迹,旨在增强阴极电催化剂和氢反应器。这篇综述首先介绍了Pt/C催化剂,突出了迄今为止开发的多样化架构,特别强调基于集成设计概念的功能化纳米碳的杂原子改性和微结构构建。这个讨论包括结构演变,属性增强,和Pt/C基催化剂的催化机理,包括合理的准备食谱,优越的活动,稳定性强,强大的金属-支撑相互作用,吸附调节,协同途径,禁闭策略,离聚物优化,大众运输许可,多维建设,和反应堆升级。此外,这篇综述探讨了通过铂-纳米碳集成催化剂的令人印象深刻的多维结构实现的低屏障或无障碍质量交换界面和通道,以优化燃料电池效率为目标。总之,这篇综述概述了与铂-纳米碳集成催化剂相关的挑战,并提供了燃料电池及其他未来发展趋势的观点。本文受版权保护。保留所有权利。
There is notable progress in the development of efficient oxygen reduction electrocatalysts, which are crucial components of fuel cells. However, these superior activities are limited by imbalanced mass transport and cannot be fully reflected in actual fuel cell applications. Herein, the design concepts and development tracks of platinum (Pt)-
nanocarbon hybrid catalysts, aiming to enhance the performance of both cathodic electrocatalysts and fuel cells, are presented. This review commences with an introduction to Pt/C catalysts, highlighting the diverse architectures developed to date, with particular emphasis on heteroatom modification and microstructure construction of functionalized nanocarbons based on integrated design concepts. This discussion encompasses the structural evolution, property enhancement, and catalytic mechanisms of Pt/C-based catalysts, including rational preparation recipes, superior activity, strong stability, robust metal-support interactions, adsorption regulation, synergistic pathways, confinement strategies, ionomer optimization, mass transport permission, multidimensional construction, and reactor upgrading. Furthermore, this review explores the low-barrier or barrier-free mass exchange interfaces and channels achieved through the impressive multidimensional construction of Pt-
nanocarbon integrated catalysts, with the goal of optimizing fuel cell efficiency. In conclusion, this review outlines the challenges associated with Pt-
nanocarbon integrated catalysts and provides perspectives on the future development trends of fuel cells and beyond.