Chemical Sciences http://irgu.unigoa.ac.in/drs/handle/unigoa/5624 Thu, 12 Nov 2026 07:06:28 GMT 2026-11-12T07:06:28Z Nanosized Ni0.5Zn0.5Fe2O4 ferrite promoted one-pot synthesis of tetraphenyl-1H-imidazole http://irgu.unigoa.ac.in/drs/handle/unigoa/8130 Nanosized Ni0.5Zn0.5Fe2O4 ferrite promoted one-pot synthesis of tetraphenyl-1H-imidazole SonamKumari; Khobrekar, P.P.; Verenkar, V.M.S. Nanosized nickel-zinc ferrite (Ni sub(0.5)Zn sub(0.5)Fe sub(2)O sub(4)) was synthesised by a combustion method using succinic acid as fuel and systematically characterised using XRD, FT-IR, Raman, XPS, SEM-EDAX, TEM, and VSM techniques. XRD analysis confirmed the formation of a single-phase crystalline cubic spinel ferrite with an average crystallite size of 26.5 nm. FT-IR and Raman analyses supported spinel structure formation, with Raman providing insights into the local cation environment. XPS confirmed Ni sup(2+), Zn sup(2+), Fe sup(3+), and lattice oxygen. SEM revealed agglomerated nanocrystalline particles, while EDAX verified near-nominal elemental composition. TEM showed nanosized particles comparable to XRD crystallite sizes, and SAED confirmed their polycrystalline spinel nature. VSM measurements demonstrated temperature-dependent ferrimagnetic behaviour. Furthermore, Ni sub(0.5)Zn sub(0.5)Fe sub(2)O sub(4) was evaluated as a heterogeneous catalyst for the ultrasonic synthesis of tetraphenyl-1H-imidazole, affording moderate yields under mild reaction conditions and highlighting its potential for catalytic applications. Thu, 01 Jan 2026 00:00:00 GMT http://irgu.unigoa.ac.in/drs/handle/unigoa/8130 2026-01-01T00:00:00Z Studies on Micro-Cement Assisted Blended Cements http://irgu.unigoa.ac.in/drs/handle/unigoa/8103 Studies on Micro-Cement Assisted Blended Cements Kamble, Rajan Suresh Mon, 01 Jun 2026 00:00:00 GMT http://irgu.unigoa.ac.in/drs/handle/unigoa/8103 2026-06-01T00:00:00Z Synthesis, Characterisation, and Solid-State Properties of Substituted Ni-Co and Ni-Mn Ferrites and Their Applications http://irgu.unigoa.ac.in/drs/handle/unigoa/8102 Synthesis, Characterisation, and Solid-State Properties of Substituted Ni-Co and Ni-Mn Ferrites and Their Applications Navelkar, Sanjali Fri, 01 Aug 2025 00:00:00 GMT http://irgu.unigoa.ac.in/drs/handle/unigoa/8102 2025-08-01T00:00:00Z Photoredox Catalyst: Design, Synthesis and its Applications in Organic Methodologies http://irgu.unigoa.ac.in/drs/handle/unigoa/8073 Photoredox Catalyst: Design, Synthesis and its Applications in Organic Methodologies Khobrekar, Pritesh Prakash Mon, 01 Sep 2025 00:00:00 GMT http://irgu.unigoa.ac.in/drs/handle/unigoa/8073 2025-09-01T00:00:00Z