Porous Iron‐Nitrogen‐Carbon Electrocatalysts for Anion Exchange Membrane Fuel Cells (AEMFC)

نویسندگان

چکیده

High-performance platinum group metal-free (PGM-free) electrocatalysts were prepared from porous organic polymers (POPs) precursors with highly-porous structures and adjustable surface area. A resin phenol-melamine-based POP an iron salt used to synthesize Fe−N−C catalysts different contents (0.2–1.3 wt.%). Electrochemical spectroscopical characterization allowed us elucidate the effect of Fe content on material's structure, chemistry, electrocatalytic activity toward oxygen reduction reaction (ORR). The increase led a specific area decrease, preserving morphological formation highly-active catalytic sites, as indicated by X-ray photoelectron spectroscopy (XPS) analysis. rotating ring disk electrode experiments, performed at pH=13, confirmed high ORR both 0.5 (E1/2=0.84 V) 1.3 (E1/2=0.83 catalysts, which assembled cathode H2-fed anion exchange membrane fuel cells (AEMFC) equipped FAA-3-50 membrane, evidencing promising performance (0.5 Fe, maximum power density, Max PD=69 mA cm−2 PD=87 cm−2) further advancement prospects.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High performance anion exchange ionomer for anion exchange membrane fuel cells

The anion exchange ionomer incorporated into the electrodes of an anion exchange membrane fuel cell (AEMFC) enhances anion transport in the catalyst layer of the electrode, and thus improves performance and durability of the AEMFC. In this work, a novel ionomer based on a triblock copolymer with high conductivity and good durability is synthesized successfully. The spectroscopy (such as H-NMR, ...

متن کامل

Hybrid Anion and Proton Exchange Membrane Fuel Cells

A novel hybrid fuel cell is described using at least one electrode operating at high pH in an effort to use the high conductivity of Nafion and exploit the electrochemical advantages of high-pH operation. The electrochemical behavior of a hybrid anion exchange membrane (AEM)/proton exchange membrane (PEM) junction and corresponding fuel cell are presented. Two AEM/PEM junctions and fuel cells h...

متن کامل

Poly (Ether Ether Ketone) Based Anion Exchange Membrane for Solid Alkaline Fuel Cell: A Review

Solid alkaline fuel cell is employed by polymer anion exchange membrane (AEM) that is permeable to hydroxide ion. A number of polymers have been proposed for AEM which include polysulfone (PSF), poly (phenylene oxide) (PPO), and poly (ether ether ketone) (PEEK). The purpose of this paper was to conduct a critical review on the development of PEEK polymer as AEM, particu...

متن کامل

ذخیره 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: ChemElectroChem

سال: 2023

ISSN: ['2196-0216']

DOI: https://doi.org/10.1002/celc.202201115