01993nas a2200193   4500008004100000022001400041245010200055210006900157260000800226300001500234490000700249520128400256100001801540700001701558700002801575700003301603700003301636856013001669       2018                        eng d  a1144-054600aComposite thin film of simultaneously formed carbon and SnO2 QDs for supercapacitance application0 aComposite thin film of simultaneously formed carbon and SnO2 QDs  cMAR  a 8823-88300 v423 aComposite material with uniform size and structure is a critical asset that decides its properties like charge transfer, thermal, photoluminescence, mechanical, etc. and consequently the applications. Here for the first time, we report the concept of flame/combustion at liquid-liquid interface to synthesize in situ, thin film formation of composite consisting of two or more quantum dots. Synthesis of thin films of a composite containing C and SnO2 QDs having particle sizes below 3 nm was successfully done. As compared to a single quantum dots system, the formed composite showed significantly improved specific capacitance due to the synergistic effect arising from strong interaction between C and SnO2 QDs. This was confirmed by XPS, UV visible spectroscopy and photoluminescence spectra. Moreover, it was confirmed that even after 1000 charge/discharge cycles, the interaction between C and Sn remained unaltered; indicating significant stability of capacitance. Some of the advantages of this method include one step, eco-friendly process at ambient conditions. The generality of the method was established by synthesizing C-ZnO and C-TiO2 composite thin film. This new approach can be extended to form many other valuable composite thin films for various applications.1 aJadhav, Aarti1 aPatil, Sagar1 aPatil, Kashinath, Rangu1 aSathaye, Shivaram, Dattatray1 aRode, Chandrashekhar, Vasant  uhttps://library.ncl.res.in/content/composite-thin-film-simultaneously-formed-carbon-and-sno2-qds-supercapacitance-application02582nas a2200145   4500008004100000245009900041210007100140260000800211300001600219490000600235520201500241100001802256700003302274856012902307       2018                        eng d00aFriedel–crafts alkylation over Zr-mont catalyst for the production of diesel fuel precursors0 aFriedel–crafts alkylation over Zrmont catalyst for the productio  cMAY  a5491–55010 v33 aHeterogeneous Zr-Mont catalyst prepared by a simple protocol was employed for the production of diesel fuel precursors via Friedel–Crafts (FC) alkylation of petroleum-derived arenes (e.g., mesitylene, xylene, and toluene) with biomass-derived 5-(hydroxymethyl)furfural (HMF), HMF derivatives, and carbohydrates. Initially, several acidic catalysts were screened for the FC alkylation of mesitylene with HMF in nitroethane solvent. Among all, Zr-Mont catalyst gave an exceptionally high yield (80%) of mesitylmethylfurfural (MMF). The catalytic activity of Zr-Mont was also evaluated for the alkylation of different petroleum-derived arenes with ester/halogen derivatives of HMF. Suitable acid strength and high surface area of Zr-Mont were its major attributes to make it the most efficient solid acid catalyst for this FC reaction. Even after several reuses, the catalytic activity of Zr-Mont was found to be consistent, which was also evidenced by the acidity measurements of fresh and reused Zr-Mont catalysts by temperature-programmed desorption of ammonia and pyridine Fourier transform infrared spectroscopy techniques. Direct conversion of glucose to diesel fuel precursors was also attempted over Zr-Mont catalyst in mesitylene and polar nonacidic solvents at 150 °C. However, the activity of Zr-Mont catalyst was limited for glucose dehydration to HMF and MMF did not form. When the same experiment was performed in formic acid medium, MMF was produced in 34% yield. After the addition of formic acid, the reaction becomes biphasic which contains mesitylene as an organic phase and formic acid as an aqueous phase. Formic acid worked as a solvent, reactant, and cocatalyst, whereas mesitylene worked as a reactant and product extraction phase to enable easy product isolation. With this strategy, other diesel fuel precursors were also produced in 26–30% yields from glucose and different arenes. Similar strategy was successfully extended for the conversion of sucrose to diesel fuel precursors.1 aShinde, Suhas1 aRode, Chandrashekhar, Vasant  uhttps://library.ncl.res.in/content/friedel%E2%80%93crafts-alkylation-over-zr-mont-catalyst-production-diesel-fuel-precursors02473nas a2200193   4500008004100000245014300041210006900184260000800253300001200261490000600273520172200279100002702001700002602028700002102054700003302075700002402108700002102132856012602153       2018                        eng d00aInfluence of silver nanoparticles morphologies on density, viscosity and thermal conductivity of silver nanofluids and silver ionanofluids0 aInfluence of silver nanoparticles morphologies on density viscos  cAPR  a246-2570 v73 aThis paper explores the consequence of silver nanoparticles morphology (nanowires, nanoplates, and nanospheres) on density, viscosity and thermal conductivity of nanofluids and IoNanoFluids. Nuclear magnetic resonance spectroscopy results reveal that hydroxyl group in cation relates to silver nanoparticle surface of silver IoNanoFluid. Effect on bonding of silver nanoparticles after solvation in an ionic liquid was investigated with Infrared spectroscopy. UV-Visible spectroscopy analysis observed variations in color and optical properties of silver IoNanoFluids compared with nanofluids. Structural and morphological characterization of silver nanofluids and silver IoNanoFluids were carried out with Scanning electron microscopy and Transmission electron microscopy techniques. The presence of silver nanoparticles from the aqueous phase of nanofluids to viscous ionic liquid phase was confirmed by X-ray photoelectron spectroscopy and Energy dispersive analysis. The thermal stability study unveils that Choline bis(trifluromethylsulfonyl)imide ionic liquid, and its derived silver IoNanoFluids, are more stable than silver nanofluids. There was no considerable impact was observed for the silver nanoparticles morphology on the density of IoNanofluids. Moreover, two-dimensional silver structures raise the viscosity further compare to other two morphologies of silver nanoparticles in a base ionic liquid. Among all three studied morphologies, silver nanowires influence additional in the enhancement of thermal conductivity for silver nanofluids and IoNanoFluids. Enhanced thermal conductivity and reduced viscosity of silver nanowires based IoNanoFluid sorts this fluid as a potential heat transfer fluid.1 aPatil, Virendra, Sudam1 aAndry, Cera-Manjarres1 aSalavera, Daniel1 aRode, Chandrashekhar, Vasant1 aPatil, Kashinath, R1 aCoronas, Alberto  uhttps://library.ncl.res.in/content/influence-silver-nanoparticles-morphologies-density-viscosity-and-thermal-conductivity01999nas a2200229   4500008004100000022001400041245008400055210006900139260000800208300000800216490000600224520124700230653002401477653001301501653001801514653001701532100002801549700002301577700003301600700002401633856011201657       2018                        eng d  a2073-434400aTi-doped Pd-Au catalysts for one-pot hydrogenation and ring opening of furfural0 aTidoped PdAu catalysts for onepot hydrogenation and ring opening  cJUN  a2520 v83 a<p>Pd-Au bimetallic catalysts with different Pd/Au atomic ratios, supported on ordered structured silica (Hexagonal mesoporous silica-HMS, or Santa Barbara Amorphous-15-SBA-15) were evaluated for one-pot hydrogenation of furfural to 1,2-pentanediol. The surface and structural properties of the catalysts were deeply investigated by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), N-2 adsorption isotherms (BET), Infrared spectroscopy (IR), and acid capacity measurements. XPS studies revealed that Ti doped supports had higher dispersion of the active phase, particularly in the case of Pd-Au materials in which Ti played an important role in stabilizing the metallic species. Among the various process conditions studied, such as temperature (160 degrees C), catalyst amount (10% w/w), and reaction time (5 h), H-2 pressure (500 psi) was found to improve the 1,2-pentanediol selectivity. The SBA silica bimetallic Ti-doped system showed the best performance in terms of stability and reusability, after multiple cycles. Under specific reaction conditions, the synergism between Pd-Au alloy and Ti doping of the support allowed the ring opening pathway towards the formation of 1,2-pentanediol in furfural hydrogenation.</p>10aBimetallic catalyst10afurfural10aHydrogenation10aring-opening1 aDate, Nandan, Shreehari1 aLa Parola, Valeria1 aRode, Chandrashekhar, Vasant1 aTesta, Maria, Luisa  uhttps://library.ncl.res.in/content/ti-doped-pd-au-catalysts-one-pot-hydrogenation-and-ring-opening-furfural01471nas a2200181   4500008004100000245007200041210006900113300001100182520082200193653000601015653002001021653003601041653002401077653002101101100002701122700003301149856010701182       2020                        eng d00a2,5-Diformylfuran—an oxidation product of 5-hydroxymethylfurfural0 a25Diformylfuran—an oxidation product of 5hydroxymethylfurfural  a95-1333 a<p>In the current scenario of depleting fossil-derived resources, biomass is considered a potential feedstock for sustainable energy supply and production of alternative chemicals. Among them, 2,5-diformylfuran (DFF) is one of the most important chemicals having widespread potential applications. DFF is produced from bioderived resources through the catalytic oxidation process. In this chapter, catalytic routes for the production of DFF starting from biomass-derived furan derivatives and sugars (e.g., mono/polysaccharides) are discussed in detail. Comprehensive emphasis is given to the catalysts (e.g., homogeneous and heterogeneous) and enzymes used for the transformation of various bioderived sources into DFF. Moreover, a brief look has also been given at the transformations and applications of DFF.</p>
10a210a5-Diformylfuran10a5-Hydroxymethylfurfural Biomass10aCatalysis Chemicals10aOxidation Sugars1 aShinde, Suhas, Hanmant1 aRode, Chandrashekhar, Vasant  uhttps://library.ncl.res.in/content/25-diformylfuran%E2%80%94-oxidation-product-5-hydroxymethylfurfural