K
Karna Wijaya
Researcher at Gadjah Mada University
Publications - 192
Citations - 1127
Karna Wijaya is an academic researcher from Gadjah Mada University. The author has contributed to research in topics: Catalysis & Chemistry. The author has an hindex of 12, co-authored 161 publications receiving 734 citations.
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1,4,7,10‐Tetraoxacyclododecane–acetone thiosemicarbazone (1/2)
TL;DR: In the centrosymmetric formula unit of the title complex, C 8 H 16 O 4.2C 4 H 9 N 3 S, the 1,4,7,10-tetraoxacyclododecane molecule adopts the biangular [66] conformation and the thiosemicarbazone molecules are linked to the macrocycle via a long and appreciably bent N-N-H...O hydrogen bond [N...O 2.992 (2) A and N-H...O 158 (2))°] as mentioned in this paper
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ELECTRO-DEGRADATION OF REACTIVE BLUE DYES USING CYLINDER MODIFIED ELECTRODE: Ti/β-PbO 2 AS DIMENSIONALLY STABLE ANODE
TL;DR: In this paper, a cylinder modified electrode of the β-PbO2 was fabricated by anodic electrodeposition method on titanium substrate, which was used as anode paired stainless cathode in the electrodegradation of reactive blue dye.
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Preparation of Cr Metal Supported on Sulfated Zirconia Catalyst
TL;DR: In this article, the optimal concentration of Cr metal that impregnated on SZ catalyst was determined by wet impregnation method and the results showed that the Cr/SZ 1% had the highest acidity value of 8.22 mmol/g which confirmed from FTIR spectra.
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Dealuminated and Desilicated Natural Zeolite as a Catalyst for Hydrocracking of Used Cooking Oil into Biogasoline
TL;DR: In this article, the effect of dealumination and desilication on the natural zeolite activity and selectivity of a hydrocracking process was investigated, and a variety of catalysts were prepared.
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Polysulfonylamine, CXXVI [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein robustes Achtring-Synthon in Koexistenz mit einem dritten Wasserstoffbrückenmotiv - Cyclodimere, Ketten, supramolekulare Bindungsisomere und ein fünffach verwobenes dreidimensionales (C-H ∙∙∙ O - Netzwerk / Polysulfonylamines, CXXVI [1] Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Eight- Membered Ring Synthon in Coexistence with a Third Hydrogen Bonding Motif - Cyclodimers, Chains, Supramolecular Linkage Isomers, and a Quintuply Interwoven Three-Dimensional C - H ∙∙∙ O Network
TL;DR: In this paper, low-temperature X-ray structures were determined for six rationally designed ionic solids of general formula BH ₂)₂N, where BH is 2-aminopyridinium (2, monoclinic, space group P2₁/c, Z = 4), 2-amino-1,3,4-thiadiazolium (6, triclinic), P1,Z = 2), or 2-ammino-4,6-dimethylpyrim