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Controlled Synthesis of Carbon-Supported Pt-Based Electrocatalysts for Proton Exchange Membrane Fuel Cells

机译：质子交换膜燃料电池碳负载铂基电催化剂的可控合成

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Proton exchange membrane fuel cells are playing an increasing role in postpandemic economic recovery and climate action plans. However, their performance, cost, and durability are significantly related to Pt-based electrocatalysts, hampering their large-scale commercial application. Hence, considerable efforts have been devoted to improving the activity and durability of Pt-based electrocatalysts by controlled synthesis in recent years as an effective method for decreasing Pt use, and consequently, the cost. Therefore, this review article focuses on the synthesis processes of carbon-supported Pt-based electrocatalysts, which significantly affect the nanoparticle size, shape, and dispersion on supports and thus the activity and durability of the prepared electrocatalysts. The reviewed processes include (i) the functionalization of a commercial carbon support for enhanced catalyst-support interaction and additional catalytic effects, (ii) the methods for loading Pt-based electrocatalysts onto a carbon support that impact the manufacturing costs of electrocatalysts, (iii) the preparation of spherical and nonspherical Pt-based electrocatalysts (polyhedrons, nanocages, nanoframes, one- and two-dimensional nanostructures), and (iv) the postsynthesis treatments of supported electrocatalysts. The influences of the supports, key experimental parameters, and postsynthesis treatments on Pt-based electrocatalysts are scrutinized in detail. Future research directions are outlined, including (i) the full exploitation of the potential functionalization of commercial carbon supports, (ii) scaled-up one-pot synthesis of carbon-supported Pt-based electrocatalysts, and (iii) simplification of postsynthesis treatments. One-pot synthesis in aqueous instead of organic reaction systems and the minimal use of organic ligands are preferred to simplify the synthesis and postsynthesis treatment processes and to promote the mass production of commercial carbon-supported Pt-based electrocatalysts.
机译：质子交换膜燃料电池是一个玩在postpandemic经济复苏增加的作用和气候行动计划。性能、成本和耐用性Pt-based显著相关electrocatalysts,阻碍其大规模商业应用程序。努力致力于改善Pt-based活动和耐久性通过控制合成electrocatalysts近年来作为一种有效的方法减少使用Pt,因此,成本。因此,本综述的重点是合成过程carbon-supported Pt-basedelectrocatalysts,显著影响纳米颗粒的大小、形状和分散支持,因此活动和耐久性准备的electrocatalysts。流程包括(i)的功能化商业支持增强的碳催化剂载体的互动和额外的催化效果,(ii)加载的方法Pt-based electrocatalysts碳上的支持生产成本的影响electrocatalysts, (iii)的准备球面和nonspherical Pt-basednanocages electrocatalysts(多面体,nanoframes,一和二维纳米结构),postsynthesis (iv)支持的electrocatalysts治疗。支持的影响,关键的实验参数和postsynthesis治疗Pt-based electrocatalysts受到详细审查细节。包括(我)的全面开发潜在的商业功能化碳支持,(ii)比例增大的合成carbon-supported Pt-based electrocatalysts,(3)简化postsynthesis治疗。在水代替有机合成反应系统和最小使用有机简化合成的配体是首选和postsynthesis治疗过程和促进商业的大规模生产carbon-supported Pt-based electrocatalysts。

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