Electrochemical and structural characterization of BaCe 0.7 Zr 0.15 Y 0.1 Zn 0.05 O 3-δ as an electrolyte for SOFC-H
Paper i proceeding, 2018

As a potential electrolyte for proton-conducting solid oxide fuel cells (SOFC-Hs) and to get better protonic conductivity and stability, zinc doped BCZY material has been found to be promising. In this study, we report a new composition of proton conductors BaCe0.7Zr0.15Y01Zn0.05O3-s (BCZYZn10) which was investigated using XRD, SEM and conductivity measurements. Rietveld refinement of the XRD data revel a cubic perovskite structure with Pm-3m space group. Rietveld analysis of BaCe07Zr0.15Y01Zn0.05O3-5 shows the unit cell parameter is a = 4.3582(7) A. Scanning electron microscopy images shows that the grain sizes are large and compact which gives the sample high density and good protonic conductivity. The total conductivity in wet atmosphere is significantly higher than that of dry condition and the conductivity was found to be 0.004032 Scm-1 and 0.00164 Scm-1 at 600 °C in wet and dry Ar, respectively. This study indicated that perovskite electrolyte BCZYZn10 is a promising material for the next generation intermediate temperature solid oxide fuel cells (IT-SOFCs).

Doped-BaCeO 3

TMA

Electrochemical characterization

Perovskite

Proton conductor

Författare

A. Afif

Universiti Brunei Darussalam

Habibur Seikh Mohammad Rahman

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

N. Radenahmad

Universiti Brunei Darussalam

Afizul Hakem bin Karim

Universiti Brunei Darussalam

Hidayatul Qayyimah Hj Hairul Absah

Universiti Brunei Darussalam

A. K. Azad

Universiti Brunei Darussalam

IET Conference Publications

Vol. 2018 CP750

7th Brunei International Conference on Engineering and Technology 2018, BICET 2018
Bandar Seri Begawan, Brunei,

Ämneskategorier

Oorganisk kemi

Keramteknik

Materialkemi

Mer information

Senast uppdaterat

2019-07-10