PENGARUH DOPAN Y2O5, Er2O3 DAN CaO TERHADAP SIFAT FISIS DAN KONDUKTIVITAS BISMUTH OXIDE (Bi2O3) SEBAGAI ELEKTROLIT PADAT PADA SISTEM SOFC
| Main Authors: | Febrianto, Erfin Y; Pusat Penelitian Fisika – LIPI Kompleks Puspiptek Serpong 15314 Tangerang, Indayaningsih, Nanik; Pusat Penelitian Fisika – LIPI Kompleks Puspiptek Serpong 15314 Tangerang |
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| Format: | Article \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"application/pdf\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\" eJournal |
| Bahasa: | eng |
| Terbitan: |
Himpunan Fisika Indonesia
, 2013
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| Online Access: |
http://jurnal.fisika-indonesia.org/index.php/JF/article/view/93 |
Daftar Isi:
- Penelitian tentang sintesa bahan elektrolit padatan untuk fuel cel berbasis bismuth oksida dengan yttrium oksida, erbium oksida dan kalsium oksida sebagai dopan telah dilakukan melalui proses coo presipitasi; dimana bismuth oksida; Y2O3, Er2O5 dan CaO sebagai bahan dasarnya. Bahan-bahantersebut dilarutkan dan kemudian di co-precipitasi hingga dihasilkan suatu campuran material dengan ukuran butiran yang sangat kecil (dalam orde nm) dan setelah itu di sintesa dengan teknik keramik standar. Bahan hasil proses kemudian dianalisa menggunakan teknik difraksi sinar-X-ray untukmemeriksa struktur dari fasa yang terbentuk. Kemudian dilakukan pengukuran daya hantar ion oksigen. Hasil karakterisasi memperlihatkan bahwa proses preparasi pada pembuatan padatan elektrolit berbasis bismuth oksida dengan metoda coo presipitasi meningkatkan daya hantar ion oksigen 100 hingga 1000 kali. Bi2O3 murni mempunyai nilai daya hantar ion oksigen sebesar 7 x 10-4 ohm/cm dan setelah penambahan dopan, nilai daya hantar ion oksigennya naik hingga mencapai 1 x 10-1 ohm/cm.Research on the synthesis of solid electrolyte - solid oxide fuel cell/SOFC based on bismuth oxide and yttrium oxide, erbium oxide and calcium oxide as dopant has been done through coo presipitation process, where bismuth oxide and Y2O3, Er2O5 and Ca O are used as its raw materials. Both of materials were dissolved and then co-precipitated so that this process can result in a mixture material which has very small grain size (nm order) and after that, it is synthesized by standard ceramic technique. The result of this process was analyzed by X-ray diffractometer to observe the structure of the formed phase. Next, the measurement of oxygen ionic conductivity was carried out. The result shows that preparation on solid electrolyte fabrication based on bismuth oxide by coo presipitationmethod increasing the ionic conductivity 100 to 1000 x. The ionic conductivity of pure Bi2O3 is 7 x 10-2 ohm/cm and after adding of dopant, the ionic conductivity is 1 x 10-1 ohm/cm.