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All Journal Bulletin of Chemical Reaction Engineering & Catalysis Journal of Mathematical and Fundamental Sciences Warta AKAB Bulletin of Chemical Reaction Engineering & Catalysis
Yessi Permana
Inorganic and Physical Chemistry Research Division, Institut Teknologi Bandung, Bandung
Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Mathematics Physics

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Microwave-Assisted Synthesis of DUT-52 and Investigation of Its Photoluminescent Properties Ruth Febriana Kesuma; Aep Patah; Yessi Permana
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 1 Year 2019 (April 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.367 KB) | DOI: 10.9767/bcrec.14.1.2369.124-129

Abstract

A zirconium metal-organic framework (MOF) of DUT-52 (DUT: Dresden University of Technology) was synthesized herein by reacting zirconium tetrachloride (ZrCl4) and 2,6-naphthalenedicarboxylic acid (H2NDC) in DMF under microwave heating at 115 oC for 25 min. This synthetic procedure was more efficient than a solvothermal method, by which a long thermal exposure (24 h) of 100-150 oC was required to produce the same MOF. The MOF has a thermal stability of 560 °C, prior to partial loss of interconnected 2,6-naphthalenedicarboxylate (NDC) linkers at some structure building units (SBU). Crystallinity of this DUT-52 was ca. 77 %, which was the same as one synthesized solvothermally.  Diffuse Reflectance UV-Vis spectra revealed an absorption at λex of 287 nm, which was equivalent to a bandgap energy of 4.32 eV.  Electron excitations of this DUT-52 at 275 and 300 nm gave emission wavelength of 433 nm (a purple region),  indicating a prospective use of DUT-52 as a photoluminescent material. 
Ring-Opening of Oxiranes using Taeniolite-Supported Tris(β-Diketonato)Zirconium Yessi Permana; Nobuyuki Ichikuni; Shogo Shimazu
Journal of Mathematical and Fundamental Sciences Vol. 44 No. 3 (2012)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.sci.2012.44.3.6

Abstract

A series of tris(β-diketonato)zirconium(IV) complexes was immobilized into a synthetic clay structure of Taeniolite by an ion-exchange method to generate organic/inorganic hybrid compounds. The hybrid compound served as a good catalyst for ring-opening reactions of methyl, ethyl, and dimethyl oxiranes with various alcohols to generate primary alkoxy alcohols in appreciable selectivity. This method describes a technique to immobilize cationic zirconium complexes without losing selectivity.
Pengujian Aktivitas Katalitik Nikel Berpori yang Disintesis Menggunakan Metode Pengadukan Mekanik untuk Proses Hidrogenasi Furfural Ahmad Dzaky Mualim; Yessi Permana
Journal Warta AKAB Vol 46, No 1 (2022): Warta AKAB
Publisher : Politeknik AKA Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55075/wa.v46i1.92

Abstract

Hidrogenasi furfural terkatalisis nikel berpori menggunakan asam format sebagai sumber hidrogen. Sintesis paduan logam Ni-Al menggunakan metode pengadukan mekanik dengan alat ball mill. Proses pengadukan dilakukan selama 24 jam, dengan kecepatan 500 rpm dan rasio serbuk 1:20 (75at% Ni) terhadap bola. Pembentukkan paduan logam Ni-Al dikonfirmasi menggunakan XRD. Hasil analisa XRD menunjukan terbentuknya spesi Ni3Al, namun masih terdapat logam Ni(0) yang belum membentuk paduan Ni-Al. Proses pelepasan logam Al dari paduan logam Ni-Al dilakukan dengan mereaksikan paduan logam dengan NaOH. Proses ini dilakukan pada suhu 90 °C selama 1 jam menghasilkan padatan hitam. Padatan hitam yang terbentuk kemudian disaring dan dicuci dengan menggunakan H2O dan etanol. Padatan hitam yang diprediksi merupakan logam Ni berpori kemudian dikeringkan dengan dengan proses vakum dan hasilnya disimpan dalam atmosfer nitrogen. Padatan Ni berpori ini kemudian dipergunakan sebagai katalis pada reaksi hidrogenasi furfural untuk membentuk senyawa furfuril alkohol. Reaksi katalitik dilakukan pada suhu 150 °C selama 4 jam dalam pelarut etanol atau asam format tanpa menggunakan gas hidrogen. Hasil reaksi katalitik dikarakterisasi menggunakan GC dan 1H NMR.  Hasil analisas menunjukkan logam Ni berpori yang disintesis menggunakan metode pengadukan mekanik tidak menunjukkan aktivitas katalitik terhadap reaksi hidrogenasi.
Microwave-Assisted Synthesis of DUT-52 and Investigation of Its Photoluminescent Properties Ruth Febriana Kesuma; Aep Patah; Yessi Permana
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 1 Year 2019 (April 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.1.2369.124-129

Abstract

A zirconium metal-organic framework (MOF) of DUT-52 (DUT: Dresden University of Technology) was synthesized herein by reacting zirconium tetrachloride (ZrCl4) and 2,6-naphthalenedicarboxylic acid (H2NDC) in DMF under microwave heating at 115 oC for 25 min. This synthetic procedure was more efficient than a solvothermal method, by which a long thermal exposure (24 h) of 100-150 oC was required to produce the same MOF. The MOF has a thermal stability of 560 °C, prior to partial loss of interconnected 2,6-naphthalenedicarboxylate (NDC) linkers at some structure building units (SBU). Crystallinity of this DUT-52 was ca. 77 %, which was the same as one synthesized solvothermally.  Diffuse Reflectance UV-Vis spectra revealed an absorption at λex of 287 nm, which was equivalent to a bandgap energy of 4.32 eV.  Electron excitations of this DUT-52 at 275 and 300 nm gave emission wavelength of 433 nm (a purple region),  indicating a prospective use of DUT-52 as a photoluminescent material. 
Co-Authors Aep Patah Ahmad Dzaky Mualim Nobuyuki Ichikuni Ruth Febriana Kesuma Shogo Shimazu