An Iron-Doped Calcium Titanate Cocatalyst for the Oxygen Reduction Reaction
نویسندگان
چکیده
The oxygen reduction reaction (ORR) is an important challenge in the development and large-scale distribution of energy conversion devices, especially low-temperature proton exchange membrane (PEM) fuel cells. In order to speed up ORR kinetics improve cell performance, iron-doped calcium titanate (CTFO) proposed as a cocatalyst. Fundamental physical chemical characterizations by means X-ray diffraction, infrared spectroscopy, morphological thermal analyses for understanding functional features materials were carried out. Composite catalysts containing different amounts CTFO additive with respect platinum (i.e., Pt:CTFO 1:0.5 1:1 wt:wt) studied using rotating disk electrode (RDE). Fuel tests performed at 80 °C under 30% 80% relative humidity. best composite catalyst was compared bare Pt/C Pt/C:CaTiO3−δ catalyst, revealing superior performances latter high humidity operation, combined result optimized electrolyte-electrode interface improved due inorganic additive.
منابع مشابه
Facile Synthesis of N, S-Doped Graphene from Sulfur Trioxide Pyridine Precursor for the Oxygen Reduction Reaction
In the work presented here, nitrogen and sulfur co doped on porous graphene was synthesized using pyrolysis at 900°C for 2h and the hydrothermal technique at 180°C for 24h as metal-free electrocatalysts for oxygen reduction reaction (ORR) under alkaline conditions. All the materials have been characterized by Scanning Electron Microscopy (SEM) and X-ray photo-electron spectroscopy (XPS). Moreov...
متن کاملManageable N-doped Graphene for High Performance Oxygen Reduction Reaction
Catalysts for oxygen reduction reaction (ORR) are at the heart of key green-energy fuel cell technology. N-doped graphene is a potential metal-free electrode with much better electrocatalytic activity, long-term stability, and tolerance to crossover effect than expensive platinum-based electrocatalysts. Here, we report a feasible direct-synthesis method in preparing N-graphene with manageable N...
متن کاملSingle walled carbon nanotube in the reaction layer of gas diffusion electrode for oxygen reduction reaction
In this paper, the effect of surface area of reaction layers in gas diffusion electrodes on oxygen reduction reaction was investigated. For this purpose, various amounts (0.1, 0.2, 0.3, 0.4, 0.5, 1, 1.5 and zero %wt of total loading of reaction layer) of single walled carbon nanotube (SWCNT) were inserted in the reaction layer. The performance of gas diffusion electrodes for oxygen reduction re...
متن کاملPorous Carbon Nanoparticles Co-Doped with Nitrogen and Iron as an Efficient Catalyst for Oxygen Reduction Reaction
Oxygen Reduction Reaction (ORR) performance of iron and nitrogen co-doped porous carbon nanoparticles (Fe-NPC) with various physical and (electro) chemical properties have been investigated. Fe-NPC nanoparticles are synthesized via a facile soft-templating procedure by using Iron (III) chloride hexa-hydrate as iron precursor and aminophenol-formaldehyde resin as both carbon and nitrogen precurs...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Catalysts
سال: 2023
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal13010127