B. N. Avasthi’s research while affiliated with Indian Institute of Technology Kharagpur and other places

... The general observation of PEC cells made from as-grown semiconducting crystals belonging to the ternary mixed crystal group show low efficiency values (32)(33)(34). These values of efficiency varied among different electrodes, which is a normal observation arising from variations in exposed surface morphology within the exposed area, stoichiometry and doping levels (35)(36)(37)(38). Heat treatment improves the PEC behaviour of thicker crystals quite significantly, but it degrades the PEC behaviour for thinner crystals (39). ...

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Review of material properties of (Mo/W)Se2-layered compound semiconductors useful for photoelectrochemical solar cells

... This increase is huge in comparison to cationic intercalation compounds like in WS 2 In (increasing from 6.16 Å in WS 2 to 6.18 Å in WS 2 In). 51 As a result of this strong interlayer expansion and weak interaction forces between layers, dislocations are typically obtained (see Figure S1). ...

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Reversible Iodine Intercalation into Tungsten Ditelluride

... The value of the electrical conductivity is in a range of 0.01 to 10 S/m at room temperature. The value of thermal conductivity is in a range of 0.1 to 1 W/(m*K) [5][6][7]. ...

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The conductivity and TEMF of MoS2 with Mo2S3 additive

... Metal oxides with spinel structure (AB 2 O 4 ) show numerous interesting properties based on their chemical compositions and cationic distribution, occupying to both A and B sites. Hence, they are considered as potential materials in various fields, such as multiferroic [1], superconductivity [2], colossal magnetoresistivity [3], gas sensors [4], thermoelectric [5], etc. In addition, they are also widely studied as potential electrode materials for Li-storage, due to their high specific capacity and favourable crystal structure for Li-ion insertion [6][7][8][9][10][11]. ...

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Improved Li- storage performance of heat-treated InFeCoO4 spinel prepared by glycine assisted chemical route

... Suitable substrates for a UBO can also be various dyes, such as alizarin red S [184] or rhodamine B [185]. The structural formulas of these dyes are shown in Fig. 9. Furthermore, substrates of UBO can be relatively small molecules, such as thiourea [186,187] and some of its derivatives, e. g., N,N,N′-trimethylthiourea [188]. ...

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From classical metal-catalyzed homogeneous oscillators to an uncatalyzed version of the Belousov–Zhabotinsky reaction: a review

... 10,14 However, partly we find few-layered 2D MoS2 with a molybdenum to molybdenum layer distance of 7 Å. This value is increased with respect to the bulk layer distance of 6.15 Å, 54,55 which is caused by the colloidal NSs having a twisted shape, therefore exhibitin non-optimal stacking. In samples with high molybdenum precursor concentration (240 mM, Figure 2d), few-layered NSs were found more frequently than in low molybdenum precursor synthesized NPLs. ...

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Untangling the Intertwined: Metallic to Semiconducting Phase Transition of Colloidal MoS2 Nanoplatelets and Nanosheets

... However, they have many disadvantages, such as ageing and wetting properties, oil resistance, and poor weather resistance [1]. This is due to the unsaturation caused by the carboncarbon (C = C) double bond in polyisoprene monomers [1,2,3]. Various chemical methods have been studied to improve their performance and create new polymeric materials. ...

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Research on the production technology of rubber epoxy from concentrated natural rubber latex

... When materials of spinel structure are synthesized, high-heat treatment or complicated equipment is used as a rule. Alongside with traditional spinel production methods such as ceramic (from corresponding metal oxides) [10 -12], hydroxides decomposition [13,14], salt decomposition [15], or a combination of these [16], hydrothermal methods [1,6,17] and extra-high pressure methods [9] are used nowadays. To obtain finely crystalline spinel samples, organic decomposition method is employed using ethylene glycol [1,18], egg white [19,20], starch [21], citric acid [3,7,22,23], urea [4]. ...

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Comparative Analysis of Catalytic Activity in Complex NiO-CuO-Fe2O3-Cr2O3 Oxide System of Different Production Technologies

... At d b 0.12 μm the films might be classified as "thin" ones because the material constantthe electrical conductivityturned out to be dependent on the thickness. It should be noticed that the conductivity of non-textured MoS 2 films measured in the direction parallel to the substrate is usually lower (~10 − 5 -10 − 4 S•cm − 1 [5,[30][31][32]) than we observed for the films with d ≥ 0.12 μm. However, the larger values of σ ≈ 10 − 2 -4 S•cm − 1 [8,29,33], which practically coincide with the conductivity of single crystals [28,34], were also reported for the highly ordered films. ...

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Synthesis of nanocrystalline molybdenum disulfide films and studies of their structure, spectral and photoelectrical properties

... Å, c = 7.78 Å, c/a = 1.29) normal spinel at room temperature. 22,23 The tetragonal distortion is a consequence of the Jahn-Teller effect of Cu 2+ cations that removes the ground-state degeneracy resulting in the flattening of the CuO 4 tetrahedra to the lower-symmetry tetragonal phase. However, upon heating, it transforms to the cubic spinel phase near 600 • C, where the compression of the CuO 4 tetrahedra is removed by orbital melting (transition from an orbitalordered to orbital-disordered state). ...

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Transparent ferrimagnetic semiconducting CuCr2O4 thin films by atomic layer deposition