Boosting the performance of bolt-microtubular solid oxide fuel cells through surface pattern tuning

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作   者：

Onbilgin S.;  Altan T.;  Timurkutluk C.;  Timurkutluk B.; 

作者机构：

Nigde Omer Halisdemir University Prof. Dr. T. Nejat Veziroglu Clean Energy Research Center; 

关键词：

Microtubular;  Bolt-microtubular;  Tape casting;  Surface patterning;  Solid oxide fuel cell; 

期刊名称：

Journal of the European Ceramic Society

i s s n：

0955-2219

年卷期：

2024 年 44 卷 12 期

页   码：

7092-7102

页   码：

摘   要：

? 2024 Elsevier LtdA number of bolt-microtubular anode supports (BMASs) are manufactured by winding the corresponding thin tapes on threaded rods of different thread pitches and depths, followed by co-lamination using isostatic press. Bolt-microtubular cells (BMCs) are also constructed on BMASs to investigate the effects of the created surface patterns on the cell performance and microstructure. The bolt-microtubular cell, whose anode support is patterned by using a threaded rod with 0.8 mm thread pitch and 0.4 mm thread depth, exhibits ～92% higher maximum performance than that of the reference cell at 800 oC under 0.3 NL/min hydrogen flow and stagnant air. The almost doubled performance is mainly due to the increase in anode-electrolyte and cathode-electrolyte interfacial areas by the surface patterns created. The cell is also subjected to a 200-h life test at 800 °C and 0.7 V and demonstrates a stable performance.