O
O.N. Srivastava
Researcher at Banaras Hindu University
Publications - 553
Citations - 11934
O.N. Srivastava is an academic researcher from Banaras Hindu University. The author has contributed to research in topics: Hydrogen storage & Alloy. The author has an hindex of 47, co-authored 548 publications receiving 10308 citations. Previous affiliations of O.N. Srivastava include Dr. Ram Manohar Lohia Avadh University & National Environmental Engineering Research Institute.
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Carbon nanotube filters.
TL;DR: The fabrication of freestanding monolithic uniform macroscopic hollow cylinders having radially aligned carbon nanotube walls, with diameters and lengths up to several centimetres are reported, which may allow them to compete with ceramic- and polymer-based separation membranes used commercially.
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Low field magnetotransport in manganites
TL;DR: This review consists of an overview of grain-boundary-induced low field magnetotransport behavior and prospects for possible applications of CMR manganites.
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Biosynthesis of gold and silver nanoparticles by natural precursor clove and their functionalization with amine group
TL;DR: In this article, a simple and cost effective way for synthesis of metallic nanoparticles using natural precursor clove extract was reported, where the reduction time is quite small (few minutes instead of hours as compared to other natural precursors).
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Synthesis of carbon nanotubes.
TL;DR: The different synthesis methods of carbon nanotubes (both multi-walled and single-Walled) are reviewed and recent work in the controlled synthesis of carbon Nanotubes with ordered architectures is presented.
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Synthesis of Different Cu(OH)2 and CuO (Nanowires, Rectangles, Seed-, Belt-, and Sheetlike) Nanostructures by Simple Wet Chemical Route
TL;DR: In this paper, the reduction of aqueous solution of copper nitrate (Cu(NO3)2 = 0.2 M) with different molar concentrations of NaOH solution and the synthesized nanomaterials get transformed into different nanostructures of CuO by subsequent heat treatment at 80 °C for half an hour.