raw data of 'Enhanced Long-term Cathode Stability by Tuning Interfacial Nanostructures for Intermediate Temperature Solid Oxide Fuel Cells'

Hu, Dingyue (2020) raw data of 'Enhanced Long-term Cathode Stability by Tuning Interfacial Nanostructures for Intermediate Temperature Solid Oxide Fuel Cells'. [Data Collection]

Data Catalogue DOI: 10.17638/datacat.liverpool.ac.uk/1159

Description

The raw data of paper titled 'Enhanced Long-term Cathode Stability by Tuning Interfacial Nanostructures for Intermediate Temperature Solid Oxide Fuel Cells ' which is going to be submitted to journal Advanced Materials and provide data availability. This document may include area-specific-resistance (ASR), Thermal Extension Coefficient (TEC), Thermo Gravimetric AnalyzerTGA and Diffraction measurement results. Abstract : Performance durability is one of the essential requirements for solid oxide fuel cells materials operatinged at in the intermediate temperature range (500-700 °C). However, tThe incompatibility of trade-off between the desirable catalysis activity and long-term stability challenges the development and commercialization of most electrode materials. Here we report an oxygen electrode material, Ba0.5Sr0.5(Co0.7Fe0.3)0.69-xMgxW0.31O3-d (BSCFW-xMg), that achieves exhibits both excellent electro-catalytic and transport properties, and alongside long-term stability. We improveretard the The resistance degradation rate is reduced by 10 an order of magnitude times over current state- of- the- art materials through the addition of a small an optimized amount Mg to multi-phase, nano-structured Ba0.5Sr0.5(Co0.7Fe0.3)0.69W0.31O3-d (BSCFW) by simple solid state reaction. The Mg2+ ions decorate enrich at the single perovskite –/ double perovskite interface of BSCFW with dislocations and Mg2+-rich thin nanolayers of nanometers thickness, creating a stressed and charged region that may prevent Ba/Sr’s segregation during operation over extended times. By capitalizing on the interface and strain effects in a multi-phase composite material, a new strategy of for tackling modifying the instability of existing unstable best-class cathode materials is proposed. here as well as with the simultaneous discovery of finding new compositions of cathode materials.

Keywords:

BSCFW-Mg, Raw Data, ASR, XRD, TEM

Divisions:

Faculty of Science and Engineering > School of Physical Sciences

Depositing User:

Dingyue Hu

Date Deposited:

22 Sep 2020 15:45

Last Modified:

15 Mar 2022 15:43

DOI:

10.17638/datacat.liverpool.ac.uk/1159