Preparation and conductivity measurement of 7-8 mol % YSZ and 12 mol % CSZ for electrolyte SOFC

Budiana, Budiana; Fitriana, F.; Ayu, Nur Ika Puji; Suasmoro, S.

doi:10.1088/1742-6596/739/1/012022

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…Salah satu contoh material keramik yang dapat dijadikan sebagai bahan kajian adalah ZrO 2 [13][14][15]. Bahan ini sering digunakan sebagai material solid oxide fuel cell (SOFC) [16][17][18], penggunaan dalam bidang medis [19,20], bahan dielektrik [7,21], proteksi material dari korosi dan oksidasi logam [22][23][24] serta dapat digunakan sebagai matriks kolom generator radioisotop [25].…”

Section: Pendahuluanunclassified

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Kajian Perubahan Struktur Kristal dan Konduktivitas Listrik Akibat Penambahan Variasi Dopan pada Bahan ZrO2

Budiana

Fitriana

Wivanius

et al. 2020

ASEECT

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ZrO2 merupakan bahan keramik yang memiliki banyak struktur (Polimorpi). Struktur yang dimiliki oleh ZrO2 terdiri dari struktur monoklinik yang stabil pada temperatur ruang, tetragonal dan kubik. Metode penelitian pada penulisan jurnal ini menggunakan teknik review dari beberapa peneliti yang telah melakukan kajian secara intensif dengan berbagai variasi metode yang telah dilakukan. Selain dari itu, penyusunan jurnal ini dilengkapi dengan penggunaan software Vesta yang terintegrasi dengan data-data kristalografi yang tersedia pada laman crystallography.net/cod/ sehigga dapat memberikan simulasi atas pemberian dopan yang diberikan pada ZrO2. Berdasarkan kajian yang telah dilakukan, penambahan variasi dopan yang diberikan pada ZrO2 mengakibatkan ZrO2 kubik dan tetragonal stabil pada temperatur ruang dan terjadi perubahan nilai konduktivitas listrik akibat adanya kehadiran vakansi oksigen yang terbentuk dari adanya pemberian dopan yang diberkan. Perubahan nilai konduktivitas listrik tergantung dari jenis dan konsentrasi dopan yang diberikan.

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Section: Pendahuluanunclassified

“…Persamaan yang digunakan untuk menyatakan hubungan antara energi aktivasi dengan konduktivitias ionik disebut sebagai persamaan Arhenius seperti pada persamaan 5 [42]. [18].…”

Section: B Pengaruh Penambahan Dopan Pada Sifat Listrikunclassified

Kajian Perubahan Struktur Kristal dan Konduktivitas Listrik Akibat Penambahan Variasi Dopan pada Bahan ZrO2

Budiana

Fitriana

Wivanius

et al. 2020

ASEECT

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“…A few attempts have been done to prepare 8YSZ by the solidstate reaction method. Budiana et al successfully prepared 8YSZ and measured its ionic conductivity to get activation energy 0.96 eV and relative density of 96.70% [19]. Tong et al characterized the submicron-grain size of YSZ electrolyte for SOFC application.…”

Section: Introductionmentioning

confidence: 99%

Characterizations of Synthetic 8mol% YSZ with Comparison to 3mol %YSZ for HT-SOFC

Al-Attar¹,

Farid²,

Hashim³

2020

ETJ

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In this work, Yttria (Y2O3) was successfully doped into tetragonal 3mol% yttria stabilized Zirconia (3YSZ) by high energy-mechanical milling to synthesize 8mol% yttria stabilized Zirconia (8YSZ) used as an electrolyte for high temperature solid oxide fuel cells (HT-SOFC). This work aims to evaluate the densification and ionic conductivity of the sintered electrolytes at 1650°C. The bulk density was measured according to ASTM C373-17. The powder morphology and the microstructure of the sintered electrolytes were analyzed via Field Emission Scanning Electron Microscopy (FESEM). The chemical analysis was obtained with Energy-dispersive X-ray spectroscopy (EDS). Also, X-ray diffraction (XRD) was used to obtain structural information of the starting materials and the sintered electrolytes. The ionic conductivity was obtained through electrochemical impedance spectroscopy (EIS) in the air as a function of temperatures at a frequency range of 100(mHz)-100(kHz). It is found that the 3YSZ has a higher density than the 8YSZ. The impedance analysis showed that the ionic conductivity of the prepared 8YSZ at 800°C is0.906 (S.cm) and it was 0.214(S.cm) of the 3YSZ. Besides, 8YSZ has a lower activation energy 0.774(eV) than that of the 3YSZ 0.901(eV). Thus, the prepared 8YSZ can be nominated as an electrolyte for the HT-SOFC.

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“…Previous research had paid much attention on the electrolyte such as reducing the YSZ electrolyte thickness [6,7] and finding a candidate for SOFC electrolyte [8][9][10]. It has been reported that the solid electrolyte for the SOFC made of Calcia Stabilized Zirconia (CSZ) gave promising results [10,11]. Another research concluded that by mixing ZrO 2 with metallic oxides such as CaO, great molecular stability can be obtained [12].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Calcia Stabilized Zirconia as a solid E lectrolyte M ade through a sol gel M ethod in Solid Oxide Fuel Cell

Nurbanasari*,

Syarif,

Nurizki

et al. 2019

IJEAT

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Solid Oxide Fuel Cell (SOFC) is a solid-state energy conversion device which produces electricity through the conversion of chemical energy directly to electrical energy. The research was carried out to characterize Calcia Stabilized Zirconia (CSZ) that was made using sol gel method. In this study, the production of CSZ pellets consisted of three steps. First step was the extraction of ZOC (ZrOCl28H2O) and second step was the production of Zr(OH)4 and the last step was dissolution of ZrOH4 into HCl and then adding CaO to get CSZ powder. The CSZ powder was then pressed to form pellets, followed by sintering at 1200 oC for 3 hours. The characterization was conducted using X ray diffraction to analyze the presence of impurities as well as the formation of cubic phase and scanning electron microscope was used to observe the pores in the microstructure. From the XRD data and SEM analysis, it can be concluded that the Calcia Stabilized Zirconia as a solid electrolyte in SOFC using sol gel method gave promising results.

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Preparation and conductivity measurement of 7-8 mol % YSZ and 12 mol % CSZ for electrolyte SOFC

Cited by 5 publications

References 10 publications

Kajian Perubahan Struktur Kristal dan Konduktivitas Listrik Akibat Penambahan Variasi Dopan pada Bahan ZrO2

Kajian Perubahan Struktur Kristal dan Konduktivitas Listrik Akibat Penambahan Variasi Dopan pada Bahan ZrO2

Characterizations of Synthetic 8mol% YSZ with Comparison to 3mol %YSZ for HT-SOFC

Characterization of Calcia Stabilized Zirconia as a solid E lectrolyte M ade through a sol gel M ethod in Solid Oxide Fuel Cell

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