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This research was carried out intensively in the Nano and Interfacial Chemistry (NIC) Laboratory, Department of Chemistry, FMIPA UI, and in the Pertamina Laboratory.<\/p>\n\n\n\n
The synthesized metal oxide additive was then added to the gasoline and ethanol mixture (PE10) to improve oxidation stability, corrosion resistance, and combustion performance of the environmentally friendly fuel.<\/p>\n\n\n\n
\"A mixture of ethanol and gasoline is indeed more environmentally friendly, but still faces challenges such as being more easily oxidized and causing engine corrosion. Using a green synthesis approach, we utilize the natural compounds in calliandra leaves, such as flavonoids and alkaloids, to create metal additives such as MgO, Al\u2082O\u2083, and MgAl\u2082O\u2084,\" explained Dr. Indah while defending her dissertation.<\/p>\n\n\n\n
Tests showed that PE10 supplemented with a metal oxide additive synthesized from calliandra leaf extract had significantly better stability, less deterioration during storage, and offered protection against rust. Combustion was also more complete, as evidenced by increased carbon dioxide (CO\u2082) emissions, an indicator of combustion efficiency, and decreased emissions of harmful pollutants such as nitrogen dioxide (NO\u2082) and sulfur dioxide (SO\u2082).<\/p>\n\n\n\n
\"I want to prove that future energy solutions can come from local plants. They don't have to be expensive or environmentally harmful,\" Dr. Indah told the UI Faculty of Mathematics and Natural Sciences Public Relations team.<\/p>\n\n\n\n <\/p>\n\n\n\n The doctoral promotion session was led by Prof. Dede Djuhana, M.Si., Ph.D., as the chief executive and Dean of FMIPA UI, and attended by Prof. Dr. Yoki Yulizar, S.Si., M.Sc. as promoter, and Dr. Eng. Haryo Satriya Oktaviano from PT Pertamina (Persero) as co-promoter.<\/p>\n\n\n\n Prof. Yoki stated that the results of this study support the national target to increase the contribution of New and Renewable Energy (EBT) to 31% by 2050, especially in the transportation sector which has so far relied on fossil fuels.<\/p>\n\n\n\n \"This is a concrete step toward self-reliance in clean energy technology. Even more impressive, the raw materials come from abundant local resources,\" said Prof. Yoki.<\/p>\n\n\n\n This research not only earned Dr. Indah a doctorate, but also opened up new opportunities in utilizing local plants to support Indonesia's clean energy transition.<\/p>","protected":false},"excerpt":{"rendered":" Siapa sangka daun kaliandra merah, tanaman liar yang kerap tumbuh di pinggir jalan, dapat menjadi kunci masa depan energi bersih Indonesia? Hal ini dibuktikan oleh Indah Kurniawaty, peneliti dari Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) Universitas Indonesia (UI), yang hari ini Rabu (23\/7) resmi meraih gelar Doktor Ilmu Kimia, dengan predikat sangat memuaskan, dalam […]<\/p>\n","protected":false},"author":11,"featured_media":6612,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6607","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita"],"blocksy_meta":[],"yoast_head":"\n![\"\"](\"https:\/\/sci.ui.ac.id\/wp-content\/uploads\/2025\/07\/DSC_3905-1024x683.jpg\")
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