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ORE at CSIR-Institute of Minerals and Materials Technology: Recent submissions

Now showing items 1441-1450 of 3740

Optical and Low Temperature Magnetic Properties Study on Sol-gel Derived Misfit Calcium Cobaltite

Mishra, A.; Mahana, S.; Topwal, D.; Manju, Unnikrishnan; Bhattacharjee, S. (61st Dae-Solid State Physics Symposium, 1832, 2017)

Phase pure Calcium cobaltite is prepared by sol-gel method using citric acid as complexing agent. Optical properties are characterized by FTIR and UV-vis diffuse reflectance spectroscopy. Magnetic measurement at 5-390 shows ...
Visible Light Active Single-Crystal Nanorod/Needle-like alpha-MnO2@RGO Nanocomposites for Efficient Photoreduction of Cr(VI)

Padhi, D.K.; Baral, A.; Parida, K.; Singh, S.K.; Ghosh, M.K. (Journal Of Physical Chemistry C, 121(11), 2017: 6039-6049)

Herein, we report a highly efficient template or surfactant free hydrothermal method to fabricate a graphene based single-crystal tetragonal needle- and nanorod-like alpha-MnO2 composite, a kind of semiconductor photocatalyst ...
Fabrication of ZnS Hollow Spheres and RGO-ZnS Nanocomposite Using Cysteamine as Novel Sulfur Source: Photocatalytic Performance on Industrial Dyes and Effluent

Dutta, S.; Chatterjee, S.; Mukherjee, I.; Saha, R.; Singh, B.P. (Industrial & Engineering Chemistry Research, 56(16), 2017: 4768-4778)

A facile one-pat hydrothermal synthesis of hollow ball-like ZnS nanostructures is reported using cysteamine, an ecofriendly sulfur source. Following similar protocol, a heterostructure of RGO-ZnS nanocomposite have been ...
Complex Magnetic behavior in GdCrO3

Mahana, S.; Manju, Unnikrishnan; Topwal, D. (61st Dae-Solid State Physics Symposium, 1832, 2017)

Magnetic interactions in Gadolinium orthochromites (GdCrO3) are quite complex. It shows strong temperature dependency related to Gd3+-Gd3+, Gd3+-Cr3+ and Cr3+-Cr3+ interactions, resulting in exotic phenomena like spin ...
3D Co-3(PO4)(2)-Reduced Graphene Oxide Flowers for Photocatalytic Water Splitting: A Type II Staggered Heterojunction System

Samal, A.; Swain, S.; Satpati, B.; Das, D.P.; Mishra, B.K. (Chemsuschem, 9(22), 2016: 3150-3160)

The design, synthesis, and photoelectrochemical characterization of Co-3(PO4)(2), a hydrogen evolving catalyst modified with reduced graphene oxide (RGO), is reported. The 3D flowerlike Co-3(PO4)(2) heterojunction system, ...
Electrodeposition of Sea Urchin and Cauliflower-like Nickel-/Cobalt-Doped Manganese Dioxide Hierarchical Nanostructures with Improved Energy-Storage Behavior

Biswal, A.; Minakshi, M.; Tripathy, B.C. (Chemelectrochem, 3(6), 2016: 976-985)

Transforming the existing Zn-MnO2 primary battery into a secondary battery with enhanced storage behavior and a low cost is of significant interest. Such technology could underpin future energy-storage development. To ...
Probing Environmental Remediation of RhB Organic Dye Using alpha-MnO2 under Visible- Light Irradiation: Structural, Photocatalytic and Mineralization Studies

Baral, A.; Das, D.P.; Minakshi, M.; Ghosh, M.K.; Padhi, D.K. (Chemistryselect, 1(14), 2016: 4277-4285)

Photocatalytic activity of alpha-MnO2 nanorod synthesized through a low temperature (90 degrees C) single step precipitation route in the absence of surfactant and template is reported. Dependence of precipitation time on ...
Head movement immune active noise control with head mounted moving microphones

Behera, S.K.; Das, D.P.; Subudhi, B. (Journal Of The Acoustical Society Of America, 142(2), 2017: 573-587)

The active headrest is an important application of active noise control (ANC) where the occupant gets a quiet zone during use. However, its performance degrades due to head movement, which is an important issue. Unlike ...
Flexible Polymer-Multiwall Carbon Nanotubes Composite Developed by in situ Polymerization Technique

Nayak, S.; Behura, S.K.; Singh, B.P.; Bhattacharjee, S. (Polymer Composites, 37(9), 2016: 2860-2870)

Mechanically robust and flexible polymer-multiwall carbon nanotubes (MWCNT) composites are developed by in situ polymerization technique, where MWCNT are embedded in nontoxic, bio-compatible acryl amide-based polymer matrix. ...
Surfactant directed synthesis of mesoporous alumina and alpha-alumina single crystal

Mishra, G.; Dash, B.; Dash, A.; Bhattacharya, I.N. (Crystal Research And Technology, 51(7), 2016: 433-440)

Mesoporous Al2O3 were positively synthesized via treatment of the freshly precipitated amorphous alumina gel using aluminium sulphate as aluminium source, and sodium dodecyl sulphate (SDS) as structure-directing agent ...

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