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We report three different synthesis routes while maintaining similar reaction conditions to choose an effective way to precisely control the growth of ultrafine one dimensional LiMn2O4 in the form of nanorods. We developed a novel method of…

Applied Physics · Physics 2018-09-03 Niraj Kumar , K. Guru Prasad , T. Maiyalagan , Arijit Sen

A remarkably high value of specific capacitance of 450 F/g has been observed through electrochemical measurements in the electrode made of multiferroic Bismuth Ferrite (BFO) in the form of nanorods protruding out. These BFO nanorods were…

Materials Science · Physics 2013-09-24 Nabanita Dutta , S. K. Bandyopadhyay , Subhasis Rana , Pintu Sen , A. K. Himanshu

Manganese dioxide nanorods were synthesized using novel solution route. The phase and microstructure of synthesized materials were identified using X ray diffraction, scanning electron and transmission electron microscopic measurements. The…

Materials Science · Physics 2015-10-06 Veenu Kumari , Balram Tripathi , Ambesh Dixit

A simple one-pot hydrothermal synthesis of single crystalline beta-MnO2 nanorods with diameters in the range of 10-40nm is reported. During the synthesis process, the acid molarities were varied from 1.1M down to 0.2M in steps of 0.3M while…

Mesoscale and Nanoscale Physics · Physics 2018-09-12 Niraj Kumar , P. Dineshkumar , R. Rameshbabu , Arijit Sen

Supercapacitors capable of providing high voltage, energy and power density but yet light, low volume occupying, flexible and mechanically robust are highly interesting and demanded for portable applications. Herein, freestanding flexible…

NiCo2O4 of varying nanostrucutures ranging from nanowires, nanoplates to nano-plates@nanowires were successfully grown on microporous (MP) Ni foams via one-step hydrothermal process. The investigation of electrochemical capacitance favors…

Materials Science · Physics 2016-04-05 Qin Guo , Mengjie Xu , Rongjun Xu , Ying Zhao , Boyun Huang

Nanoporous carbon materials containing small domains of sp2-carbon with highly disordered structures are promising for supercapacitor applications. Herein, we synthesize amorphous carbon nanofoam with 98% volumetric void fraction and low…

High-performance anodes for rechargeable Li-ion battery are produced by nanostructuring of the transition metal oxides on a conductive support. Here, we demonstrate a hybrid material of MnO2 directly grown onto fabrics of carbon nanotube…

Chemical looping methane partial oxidation provides an energy and cost effective route for methane utilization. However, there is considerable CO2 co-production in state-of-the-art chemical looping systems, rendering a decreased…

Chemical Physics · Physics 2020-01-08 Yan Liu , Lang Qin , Zhuo Cheng , Josh W. Goetze , Fanhe Kong , Jonathan A. Fan , Liang-shih Fan

Surface enhanced Raman spectroscopy (SERS) has the capacity of detecting trace amount of biological or chemical matter, even single molecules, through the use of metallic nanostructures such as nanorods. Silver (Ag) and gold (Au) nanorods…

Materials Science · Physics 2014-05-06 Stephen P. Stagon , Xuefei Tan , Yongmin Liu , Hanchen Huang

Remarkably high values of polarization as well as a significant magnetic susceptibility have been observed in multiferroic Bismuth Ferrite (BFO) in the form of nanorods protruding out. These were developed on porous Anodised Alumina (AAO)…

Cu2O nanorods have been deposited on soda-lime glass (SLG) substrates by the modified SILAR technique by varying the concentration of NaCl electrolyte into the precursor complex solution. The structural, electrical, and optical properties…

In this work, we report on the electrochemical behavior of nitrided spaced TiO$_2$ nanotubes conformally coated with a nanocrystalline Nb$_2$O$_5$ layer and find for these hierarchical structures an excellent supercapacitor performance.…

Applied Physics · Physics 2020-05-05 Selda Ozkan , Nhat Truong Nguyen , Imgon Hwang , Anca Mazare , Patrik Schmuki

We report on the growth of nanostructured rods fabricated by electrostatic co-assembly between iron oxide nanoparticles and polymers. The nanoparticles put under scrutiny, {\gamma}-Fe2O3 or maghemite, have diameter of 6.7 nm and 8.3 nm and…

Materials Science · Physics 2010-10-15 M. Yan , J. Fresnais , J. -F. Berret

A simple hydrothermal method was developed for the synthesis of ultra fine single-crystal {\alpha}-MnO2 nanowires by only using potassium permanganate and sodium nitrite in acidic solution, without any seed or template. Detailed analysis of…

Applied Physics · Physics 2018-09-11 Niraj Kumar , P. Dineshkumar , R. Rameshbabu , Arijit Sen

Tailoring the magnetic properties of iron oxide nanosystems is essential to expand their biomedical applications. In this study, the 34 nm iron oxide nanocubes with two phases consisting of Fe3O4 and alpha-Fe2O3 were annealed for 2 hours in…

Materials Science · Physics 2024-02-01 Supun B. Attanayake , Amit Chanda , Raja Das , Manh-Huong Phan , Hariharan Srikanth

Exchange-coupled nanocomposites are considered as the most promising materials for production of high-energy performance permanent magnets, which can exceed neodymium ones in terms of energy product. In this work, micromagnetic simulations…

Materials Science · Physics 2020-07-07 V. L. Kurichenko , D. Yu. Karpenkov , P. A. Gostischev

Pulsed laser-deposited amorphous carbon nanofoams are potential candidate for electrochemical energy storage applications due to ultra-light weight, large volumetric void fractions, and co-existence of sp, sp2 and sp3 carbon hybridization.…

Nanotechnology has already made indelible dents in the fields of communication, computation, electronics, photonics, gas sensors, diagnostic technologies, catalysis, drug delivery systems and imaging. In particular, ZnO nanostructures have…

Silicon anodes offer high energy densities for next-generation lithium-ion batteries; however, their application is limited by severe volume expansion during cycling. Making silicon porous or nanostructured mitigates this expansion but…

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