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All Journal Jurnal Teknik Kimia Konversi Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Penamas Adi Buana Jurnal Medika Malahayati Industri Inovatif : Jurnal Teknik Industri G-Tech : Jurnal Teknologi Terapan Journal of Sustainable Technology and Applied Science Equilibrium Journal of Chemical Engineering Prosiding SNAST Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Eduvest - Journal of Universal Studies JASTEN (Jurnal Aplikasi Sains Teknologi Nasional Jurnal Teknik Kimia dan Lingkungan Jurnal ATMOSPHERE
Rini Kartika Dewi
Institut Teknologi Nasional Malang
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Journal : Jurnal ATMOSPHERE

 1 
PERSIAPAN DAN KARAKTERISASI PALLADIUM BERBASIS ELEKTROLISIS UNTUK SEL BAHAN BAKAR Chiou, Yuh Jing; Stefandra, Praisela Ivane; Dewi, Rini Kartika
jurnal ATMOSPHERE Vol. 5 No. 2 (2024): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v5i2.13313

Abstract

This research presents the results of research regarding the preparation and characterization of palladium (Pd)-based electrolytes for applications in fuel cells. In the context of utilizing efficient and environmentally friendly energy sources, Fuel Cells offer an innovative solution by converting chemical energy into electrical energy without a combustion process. This research aims to develop an electrolyte that has high performance, with a focus on analyzing the physical and chemical properties of the resulting electrolyte. The methods used include synthesis of a Pd-based electrolyte and characterization using advanced analytical techniques such as X-ray diffraction (XRD) and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The research results show that Pd-based electrolytes have better ionic conductivity and higher stability compared with conventional electrolytes. In addition, variations in operating conditions have a significant effect on fuel cell performance, with the finding that increasing the electrode surface area can effectively increase hydrogen production.
KARAKTERISTIK BIOMASSA DAUN BUNGA SEPATU MENJADI BAHAN BAKAR STERNO GEL Dewi, Rini Kartika; Muyassaroh; Jimmy
jurnal ATMOSPHERE Vol. 2 No. 2 (2021): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v2i2.4301

Abstract

Sterno gel of hibiscus leaves (Hibiscus rosa-sinensis L.) is an alternative energy source that can be used as fuel because it has non-volatile characteristics, during the combustion process it does not smoke, does not have soot and does not produce harmful and carcinogenic gas emissions and does not have any harmful gases. the impact of emissions on the environment, Inside the hibiscus leaf contains saponins, -sitosterol, stigmasterol, taraxeryl acetate and 3-cyclopropane and their derivatives which will dissolve in both water and ethanol and will form colloids in water. With this composition, the researchers used hibiscus leaf biomass as fuel for sterno gel, where in this study the variables were filtrate mass of hibiscus leaf :10,1 20, 30, 40,50,60 and 70 grams and mass of carbopol :1, 1.5, 2 and 2.5 grams. From the research, it was found that the best burning time was 60 grams of hibiscus filtrate mass and 2.5 grams of carbopol mass, which was 25.02 minutes with the resulting gas emission values ​​of NOx: 4 ppm, SO2: 3 ppm and H2S: 2 ppm. While the calorific value is 3500 calories.
OPTIMALISASI ECENG GONDOK (EICCHORNIA CRASSIPES) SEBAGAI PUPUK ORGANIK CAIR UNTUK PERTANIAN BERKELANJUTAN DAN RAMAH LINGKUNGAN Retnowati, Dewi; Dewi, Rini Kartika
jurnal ATMOSPHERE Vol. 6 No. 1 (2025): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v6i1.14675

Abstract

Fertilizer is one of the commodities that can increase plant productivity by adding macro and micro element supplements so that agricultural and plantation products have good quality and quantity. Water hyacinth (Eichornia Crassipes) is a plant that is very adaptable to poor environmental conditions, water hyacinth is easy to find and grows quickly even in waters with low nutrient levels. The implementation of this research is in the Basic Chemistry Laboratory of Chemical Engineering, Faculty of Industrial Technology, Malang National Institute of Technology. This research covers a series of processes starting from the preparation of tools and materials, including the collection of main raw materials such as water hyacinth and nutrients including bean sprouts, banana peels, rice washing water and coconut water, variables, processing stages, fermentation. the variables used are the control variables of 1500 grams of water hyacinth. EM4 bioactivator 250 ml, molasses 500 ml, water 2250 ml, pH 4-9, Temperature 38-45 oC and variable changes fermentation time 14 days, 21 days, 28 days, 35 days, Nutrients rice washing water 500 ml, banana peel 500 grams, coconut water 500 ml, bean sprouts 500 grams. The pH produced an average of 4.0 and a temperature of 27-28 oC NPK nutrients with nutrients Coconut water produces the highest nitrogen of 0.36% on the 35th day, rice washing water produces the highest phosphorus of 0.1239% on the 28th day and banana peel produces the highest potassium of 0.3764% on the 21st day
Co-Authors ., Muyassaroh Anggorowati, Dwi Anna Anitarakhmi Handaratri Chiou, Yuh Jing Dendy Wono Prasetyo Dio Ajeng Oktavian Dwi Ana Anggorowati Elvianto Dwi Daryono Faidliyah Nilna Minah Ferry Darmawan Harimbi Setyawati Heni Rahayu Rahmawati Islami Linda Wibawanti Jimmy Jimmy Jimmy Krisvalentina, Rossy Mohammad Istnaeny Hudha MUYASSAROH Muyassaroh Nanik Astuti Rahman Nihara Mian Intan Sari Pardede Retnowati, Dewi Siswi Astuti Sriliani Surbakti Srililiani Surbakti Stefandra, Praisela Ivane Tetuko Sigit Hanitanoyo