02045nas a2200253   4500008004100000022001400041245008100055210006900136260007300205300001200278490000800290520113200298653002101430653002201451653001801473653002701491653003701518653002601555653002301581100002301604700002301627700003001650856011101680       2013                        eng d  a0927-775700aSynthesis of triangular gold nanoplates: role of bromide ion and temperature0 aSynthesis of triangular gold nanoplates role of bromide ion and   aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAPR  a181-1900 v4223 a<p>Synthesis of noble metal triangular nanoplates is a kinetically controlled process in which temperature and packing defects play a major role. Nucleation and growth process of kinetically controlled reaction can be greatly influenced by temperature affecting the yield and edge length of the triangles. Through a conventional batch mode process, here we study the effect of temperature on nucleation and growth of gold triangular nanoplates and obtain some insight of the temperature effects on the final yield and edge length of triangles. The role of Br- ions in the synthesis of triangular nanoplates is studied by varying the amount of CAB and by replacing the CTAB with HBr. The results show that, while CTAB controls the edge length and yield of triangles, its use is not mandatory to attain plate like morphology. Finally we show that, while the initial temperature of the reaction mixture governs the nucleation rate and the rate of temperature rise governs the growth rate of particles, they along with the concentration of Br- ions control the edge length and yield. (C) 2013 Elsevier B.V. All rights reserved.</p>10aAu nanotriangles10aHalide ion effect10aheat transfer10aKinetically controlled10aNature of gold precursor complex10aNucleation and growth10aOptical properties1 aKumar, D., V. Ravi1 aKulkarni, Amol, A.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/synthesis-triangular-gold-nanoplates-role-bromide-ion-and-temperature-002037nas a2200229   4500008004100000022001400041245014900055210006900204260000800273300001100281490000700292520120300299653001601502653002501518653001801543653001901561653003201580100002801612700001601640700002301656856012801679       2022                        eng d  a0001-154100aEvaluating suitability of confined impinging jet reactor for exothermic reactions: hydrodynamics, residence time distribution, and heat transfer0 aEvaluating suitability of confined impinging jet reactor for exo  cOCT  ae177920 v683 a<p>
	Effect of confinement (wall proximity) of a confined impinging jet reactor (CIJR) on the flow field, residence time distribution and heat transfer are explored, through experiments and CFD simulations. Hydrodynamic characteristics are evaluated for different parameters namely confinement, impinging jet velocity, temperature gradient, and so on. For 2 mm confinement, highest values of dispersion number and overall heat transfer coefficient are observed due to interaction of turbulent eddies followed by the effect of reactor wall proximity. For the CIJR having confinements above 10 mm, jet velocity need to be greater than 3 m/s to achieve both, excellent mixing efficiency and high heat removal rate. Empirical correlations for Dispersion and Nusselt numbers as a function of Re-j and L/D are obtained, over a range of 500 &lt;= Rej &lt;= 3000\$\$ 500\textbackslashle {\textbackslashmathit{\textbackslashoperatorname{Re}}}_j\text backslashle 3000 \$\$ and 5 &lt;= L/D &lt;= 35\$\$ 5\textbackslashle L/D\textbackslashle 35 \$\$, which correspond to jet velocity of 0.5-3 m/s. The present study gives a basis for designing CIJR suitable for rapid, homogeneous, exothermic reactions.</p>
10aconfinement10aexothermic reactions10aheat transfer10aimpinging jets10aresidence time distribution1 aKhan, Muzammilanwar, S.1 aMane, Mayur1 aKulkarni, Amol, A.  uhttps://library.ncl.res.in/content/evaluating-suitability-confined-impinging-jet-reactor-exothermic-reactions-hydrodynamics