02251nas a2200265   4500008004100000022001400041245009400055210006900149260000800218300001500226490000600241520142600247653001401673653001901687653002101706653001101727653000901738653001001747653001101757100002301768700002801791700002201819700002601841856011801867       2022                        eng d  a2365-654900aCatalytic activity of CuFe2O4 spinel oxide for liquid-phase oxidation of cinnamyl alcohol0 aCatalytic activity of CuFe2O4 spinel oxide for liquidphase oxida  cFEB  ae2021044410 v73 a<p>
	CuFe2O4 spinel oxide catalyst was synthesized by sol-gel and co-precipitation methods for liquid phase oxidation of Cinnamyl alcohol (CnOH) to Cinnamaldehydes (CnHO) using tert-Butyl hydroperoxide (TBHP) as oxidising agent. Spinel oxide catalyst was characterized by different techniques such as X-ray diffraction (XRD), N-2 adsorption-desorption, BET surface area, and X-ray photoelectron spectroscopy (XPS) to understand the structural, physical properties and oxidation state of the catalyst. The result shows that catalyst prepared by sol-gel method was found higher surface area and smaller crystalline size than co-precipitation method. XPS data confirm the formation of Cu2+ in the spinel which helps to improve the catalytic activity of oxidation. This reaction follows radical mechanism, and exhibited 76.7 % of CnOH conversion and 68.4 % of CnHO, and 24.8 % benzaldehyde (benzald) selectivity using TBHP at 60 degrees C. Kinetic data reveal that 41.2 kJ/mol of activation energy for the reaction. The higher activity of spinel oxide catalyst could be due synergetic effect of spinel (88 %) and oxides (12 %) formed in the catalyst, which helps to provide the oxygen during reaction. The contribution of Cu2+ is higher in sol-gel than co-precipitation, which may provide the better reactivity of catalyst. This work helps to select the effective and cost-effective catalyst for the oxidation of CnOH.</p>
10aCatalysts10aCinnamaldehyde10aCinnamyl Alcohol10aCupper10airon10aoxide10aspinel1 aDange, Rutvija, M.1 aNiphadkar, Prashant, S.1 aBokade, Vijay, V.1 aNandanwar, Sachin, U.  uhttp://library.ncl.res.in/content/catalytic-activity-cufe2o4-spinel-oxide-liquid-phase-oxidation-cinnamyl-alcohol02013nas a2200241   4500008004100000245006700041210006700108260000800175300001100183490000700194520127900201653001501480653001901495653002001514653001701534653002001551653001301571100001901584700002401603700002001627700002601647856009801673       2024                        eng d00aContinuous flow synthesis of hierarchical low silica X zeolite0 aContinuous flow synthesis of hierarchical low silica X zeolite  cJUN  a1090470 v393 a<p>
	Zeolites, renowned for their versatile applications in catalysis, adsorption, and ion exchange, have long been synthesized using conventional batch processes. However, the inherent limitations of these methods, such as resource-intensive conditions and inconsistent product quality, underscore the need for a sustainable and efficient approach. In this study, a continuous flow synthesis process was established for the synthesis of industrially important low silica X (LSX) zeolite using a tubular reactor. The synthesis gel was subjected to aging for 5 days at room temperature to facilitate nucleation and crystal growth combined with the fast-heating rate in a tubular reactor at 363 K &amp; 1.1 atm., which in turn produces LSX after 40 min. The synthesized product was confirmed by the XRD, FE-SEM, EDS, XRF, TEM, and N2 adsorption-desorption; the data was compared with the LSX sample synthesized by batch process. The result implies that LSX prepared by continuous flow has a pure phase of LSX with the hierarchical structure, which provides better adsorption capacity of CO2 at 298 K up to 20 bar. Due to continuous flow synthesis, the crystallization time was reduced and faster kinetics which may be helpful for scale-up the process for LSX synthesis.</p>
10aAdsorption10aCarbon dioxide10acontinuous flow10aLow silica X10aTubular reactor10azeolites1 aAdarsh, V., K.1 aShrotri, Aadesh, R.1 aBirje, Amit, R.1 aNandanwar, Sachin, U.  uhttp://library.ncl.res.in/content/continuous-flow-synthesis-hierarchical-low-silica-x-zeolite