<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Tangale, Nilesh P.</style></author><author><style face="normal" font="default" size="100%">Sonar, Shilpa K.</style></author><author><style face="normal" font="default" size="100%">Niphadkar, Prashant S.</style></author><author><style face="normal" font="default" size="100%">Joshi, Praphulla N.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hierarchical K/LTL zeolites: synthesis by alkali treatment, characterization and catalytic performance in knoevenagel condensation reaction</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Industrial and Engineering Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Basicity</style></keyword><keyword><style  face="normal" font="default" size="100%">Hierarchical zeolite</style></keyword><keyword><style  face="normal" font="default" size="100%">K/LTL</style></keyword><keyword><style  face="normal" font="default" size="100%">Knoevenagel condensation</style></keyword><keyword><style  face="normal" font="default" size="100%">Micro-mesoporous composite</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE INC</style></publisher><pub-location><style face="normal" font="default" size="100%">360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA</style></pub-location><volume><style face="normal" font="default" size="100%">40</style></volume><pages><style face="normal" font="default" size="100%">128-136</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The hierarchical K/LTL zeolites prepared by post-synthesis modification with aqueous 1.5 M KOH solution by varying alkali volume to K/LTL zeolite (10-70 ml/g) ratios, were examined in Knoevenagel condensation. The physico-chemical properties of the catalysts were thoroughly evaluated by PXRD, ICP, CO2-TPD, XPS, N-2 adsorption/desorption and Si-29 and Al-22 MAS-NMR. Among all the samples, hierarchical K/LTL prepared by treating K/LTL with 50 ml aqueous 1.5 M KOH solution per gram of K/LTL displayed about 1.5 fold higher catalytic activity as compared to parent K/LTL, presumably because of combined effect of enhanced basicity and molecular diffusion through pore channels. (C)2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">4.179</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chithra, P. A.</style></author><author><style face="normal" font="default" size="100%">Darbha, Srinivas</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Catalytic conversion of HMF into ethyl levulinate - a biofuel over hierarchical zeolites</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Communications</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">5-Hydroxymethyl-2-furfuraldehyde (HMF)</style></keyword><keyword><style  face="normal" font="default" size="100%">Biofuel</style></keyword><keyword><style  face="normal" font="default" size="100%">ethyl levulinate</style></keyword><keyword><style  face="normal" font="default" size="100%">Hierarchical zeolite</style></keyword><keyword><style  face="normal" font="default" size="100%">ZSM-5</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUN</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">140</style></volume><pages><style face="normal" font="default" size="100%">105998</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Catalytic conversion of 5-hydroxymethyl-2-furfuraldehyde (HMF, a biomass-derived platform chemical) into ethyl levulinate (EL) is an attractive approach for producing renewable transport fuels for mitigating global warming. We report here the application of hierarchical zeolites (DZSM-5 and MZSM-5 synthesized by desilication and mesoporous templating approaches, respectively) as solid acid catalysts for this transformation. Hierarchical structure of these zeolites was confirmed by X-ray diffraction, nitrogen-physisorption and electron microscopy, and acidity was determined by temperature-programmed desorption of ammonia. HMF conversion of 94.2% with EL selectivity of 90.8% was achieved over the MZSM-5 catalyst. Acidity, pore size and surface properties affected the catalytic activity.&lt;/p&gt;
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