当前位置：
X-MOL 学术
›
J. Colloid Interface Sci.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Electrochemical deposition of three-dimensional platinum nanoflowers for high-performance polymer electrolyte fuel cells.
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-03-23 , DOI: 10.1016/j.jcis.2020.03.078 P Dhanasekaran 1 , K Lokesh 1 , P K Ojha 2 , A K Sahu 1 , S D Bhat 1 , D Kalpana 1
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-03-23 , DOI: 10.1016/j.jcis.2020.03.078 P Dhanasekaran 1 , K Lokesh 1 , P K Ojha 2 , A K Sahu 1 , S D Bhat 1 , D Kalpana 1
Affiliation
|
In the present work, the three-dimensional ultra-fine platinum nanoflowers are directly deposited on carbon-coated gas diffusion layer electrode (C-GDL) by a single-step electrodeposition method towards the application of polymer electrolyte fuel cells. The surface morphology, particle size distribution, crystallinity, and chemical oxidation state of platinum nanoflowers are examined using various techniques. The morphological features of the Pt nanostructures are highly influenced by the difference in current density. Notabely, the Pt nanospheres converts into three-dimensional nanoflower with an increase in current density from -1.6 to -32 mA cm-2. Electrodeposited Pt catalyst on C-GDL as the cathode catalyst was fabricated and steady-state polarization studies were carried out. Mainly, the fuel cell performance is analysed considering the electrodeposited Pt morphology. Among the prepared electrocatalysts, the nanoflower shaped Pt catalyst exhibit a high peak power density of 660 mW cm-2 at 0.6 V in PEFC.
中文翻译：
用于高性能聚合物电解质燃料电池的三维铂纳米花的电化学沉积。
在目前的工作中，通过单步电沉积方法将三维超细铂纳米花直接沉积在碳包覆的气体扩散层电极（C-GDL）上，以应用高分子电解质燃料电池。使用各种技术检查了铂纳米花的表面形态，粒度分布，结晶度和化学氧化态。Pt纳米结构的形貌特征受到电流密度差异的极大影响。值得注意的是，Pt纳米球可转换为三维纳米花，电流密度从-1.6到-32 mA cm-2。制备了在C-GDL上作为阴极催化剂的电沉积Pt催化剂，并进行了稳态极化研究。主要是 考虑到电沉积的Pt形态来分析燃料电池的性能。在制备的电催化剂中，纳米花形Pt催化剂在PEFC中在0.6V下表现出660mWcm-2的高峰值功率密度。
更新日期：2020-03-26
中文翻译：
用于高性能聚合物电解质燃料电池的三维铂纳米花的电化学沉积。
在目前的工作中，通过单步电沉积方法将三维超细铂纳米花直接沉积在碳包覆的气体扩散层电极（C-GDL）上，以应用高分子电解质燃料电池。使用各种技术检查了铂纳米花的表面形态，粒度分布，结晶度和化学氧化态。Pt纳米结构的形貌特征受到电流密度差异的极大影响。值得注意的是，Pt纳米球可转换为三维纳米花，电流密度从-1.6到-32 mA cm-2。制备了在C-GDL上作为阴极催化剂的电沉积Pt催化剂，并进行了稳态极化研究。主要是 考虑到电沉积的Pt形态来分析燃料电池的性能。在制备的电催化剂中，纳米花形Pt催化剂在PEFC中在0.6V下表现出660mWcm-2的高峰值功率密度。
京公网安备 11010802027423号