Front Cover: Application of AgPt Nanoshells in Direct Methanol Fuel Cells: Experimental and Theoretical Insights of Design Electrocatalysts over Methanol Crossover Effect (ChemCatChem 23/2022)
نویسندگان
چکیده
The Front Cover shows that nanoengineering is a breakthrough way to look at the electrocatalysis field under different perspective. In their Research Article, M. Aurélio Suller Garcia, T. Silva Rodrigues and co-workers provided design of hollow AgPt-based electrocatalyst with improved resistance methanol for Direct Methanol Fuel Cells applications. After immobilization onto SiO2, nanostructures presented remarkable stability, four-electron oxygen reduction reaction mechanism as Pt/C commercial catalyst, 20 times less Pt content. More information can be found in Article by co-workers.
منابع مشابه
Using Electrospinning-Based Carbon Nanofiber Webs for Methanol Crossover Control in Passive Direct Methanol Fuel Cells
Methanol crossover (MCO) significantly affects the performance of a direct methanol fuel cell (DMFC). In order to reduce its effect, this study presents in-house carbon nanofiber webs (CNWs) used as a porous methanol barrier for MCO control in a passive DMFC. The CNW is made from polyacrylonitrile (PAN) by using electrospinning and heat treatment. The impacts of PAN concentration and carbonizin...
متن کاملRuthenium–Platinum Catalysts and Direct Methanol Fuel Cells (DMFC): A Review of Theoretical and Experimental Breakthroughs
The increasing miniaturization of devices creates the need for adequate power sources and direct methanol fuel cells (DMFC) are a strong option in the various possibilities under current development. DMFC catalysts are mostly based on platinum, for its outperformance in three key areas (activity, selectivity and stability) within methanol oxidation framework. However, platinum poisoning with pr...
متن کاملLiquid methanol concentration sensors for direct methanol fuel cells
Liquid-fed direct methanol fuel cells (DMFCs) are one of the most promising candidates for portable power electronics and automotive pplications due to their potentially high-energy density, simple storage, and distribution of the fuel. The concentration of methanol in the fuel irculation loop of a DMFC system is an important operating parameter, because it determines the electrical performance...
متن کاملAssessment of Electrochemical Methods for Methanol Crossover Measurement through PEM of Direct Methanol Fuel Cell
It is important to have accurate, reliable, and convenient techniques for determining the methanol crossover rate through the polymer electrolyte membranes of fuel cells. In this work, various electrochemical techniques, namely; cyclic voltammetry, chronoamperometry and potentiometry, have been used to measure the methanol crossover rates using Nafion 117 membrane. The purpose of using differen...
متن کاملSelf-assembled platinum nanoparticles on sulfonic acid-grafted graphene as effective electrocatalysts for methanol oxidation in direct methanol fuel cells
In this article, sulfonic acid-grafted reduced graphene oxide (S-rGO) were synthesized using a one-pot method under mild conditions, and used as Pt catalyst supports to prepare Pt/S-rGO electrocatalysts through a self-assembly route. The structure, morphologies and physicochemical properties of S-rGO were examined in detail by techniques such as atomic force microscope (AFM), transmission elect...
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: Chemcatchem
سال: 2022
ISSN: ['1867-3899', '1867-3880']
DOI: https://doi.org/10.1002/cctc.202201376