POLIOKSIDLI KATALIZATORLAR SINTEZI VA ULARNING SORBSION XARAKTERISTIKALARI
Keywords:
katalizator, solution-combustion synthesis, kompozit, difraktometriya, geksan, skanerlovchi elektron mikroskopiya, sorbsiya.Abstract
Ushbu ishda ba’zi d-elementlar asosida sintez qilingan katalizatorlarning tekstur va sorbsion xarakteristikalari o‘rganilgan. Katalizator sirtining xususiyatlari va g‘ovak tuzilmasini baholash maqsadida qutbli suv bug‘larining 473 K da adsorbsiya izotermalari tadqiq etilgan.
Adsorbsiya ma’lumotlari asosida katalizatorlarning BET bo‘yicha solishtirma sirt yuzasi, g‘ovaklarning umumiy hajmi, o‘rtacha g‘ovak diametri, monoqavat sig‘imi hamda to‘yinish adsorbsiyasi aniqlangan. Solishtirma tahlil shuni ko‘rsatdiki, geksan bug‘larining adsorbsiyasi asosan g‘ovak hajmi va dispersiyaviy o‘zaro ta’sirlar bilan belgilanadi, suv bug‘larining adsorbsiyasi esa katalizator sirtining gidrofilligi va oksid komponentlarining tabiatiga kuchli bog‘liqligi o‘rganildi. Olingan natijalar katalizatorning uglevodorodlar va suv bug‘lari ishtirokidagi gaz–bug‘ fazali katalitik jarayonlar uchun istiqbolli material sifatida tavsiflash imkonini berishi aniqlangan.
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