Sulfur Resistant Perovskite Electrocatalysts for High Temperature Applications

Year 2018, , 98 - 102, 31.08.2018

Sema Z. Baykara

https://doi.org/10.31590/ejosat.452123

Cited By: 1

Abstract

Owing to increasing demand for catalytic operations in clean and carbon negative energy systems, development of catalysts and electrocatalysts has been gaining importance and interest has been growing in mixed oxides (perovskites) that are known for their chemical and thermal stability. In the present work, some perovskite catalysts/electrocatalysts, mostly with structures ABO3 and AxA’(1-x)ByB’(1-y)O3 containing Co, Cr, La, Mo, Sr and V have been developed and studied in terms of electrical conductivity at increasing temperatures up to 1100 K. Among the samples,La0.9Sr0.1Cr0.5V0.5O3, LaSr0.5V0.5O3 ve La0.9Sr0.1Cr0.75Co0.25O3 had relatively higher conductivity.

Keywords

Catalyst, Electrocatalyst, Perovskite

Supporting Institution

TUBITAK

Project Number

217M139

Thanks

This publication has been prepared within the scope of ERA.NET projects registered as 111M801 and 217M139 by TUBİTAK.

Yüksek Sıcaklıkta Uygulamalar için Kükürde Dayanıklı Perovskit Elektrokatalizörler

Abstract

Temiz ve karbon negatif enerji sistemlerinde
katalitik operasyonların yaygınlaşmasıyla birlikte katalizör ve
elektrokatalizörlerin geliştirilmesi de önem kazanmış olup, kimyasal ve ısıl
açıdan dayanıklı karışık oksitlere (perovskitler) karşı ilgi artışı
sürmektedir.  Bu çalışmada, temiz ve karbon
negatif yaklaşımla hidrojen ve elektrik üretiminde kullanılmak üzere
geliştirilmiş olan Co, Cr, La, Mo, Sr ve V içeren, genellikle ABO₃
ve A_xA’_(1-x)B_yB’_(1-y)O₃ yapısındaki bazı katalizör/elektrokatalizör perovskit
maddeler elektriksel iletkenlik açısından 1100 K’e kadar artan sıcaklıkta
incelenmiş, bunlar arasından La_0.9Sr_0.1Cr_0.5V_0.5O₃,
LaSr_0.5V_0.5O₃ ve La_0.9Sr_0.1Cr_0.75Co_0.25O₃
bileşiklerinin daha iletken oldukları anlaşılmıştır.  

Keywords

Katalizör, elektrokatalizör, perovskit

Project Number

217M139

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