Topic
BET theory
About: BET theory is a research topic. Over the lifetime, 9046 publications have been published within this topic receiving 286142 citations.
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TL;DR: In this paper, a low cost activated carbon was prepared from date stones char (DSAC) under microwave induced KOH chemical activation, and the activation step was performed at the microwave input power of 600 W and irradiation time of 8 min.
148 citations
TL;DR: In this paper, the formation of cobalt metal organic frameworks (Co-MOFs) in different solvents and mixture is studied systematically through solvothermal method through X-ray diffraction, Field emission scanning electron microscope and Brunauer-Emmett-Teller surface analyzer to know about its crystal nature, morphology and porosity.
147 citations
TL;DR: In this article, carbon residue obtained as a byproduct from wood gasification process was employed as a precursor for preparing adsorbent by physical activation, and the optimal pH and initial concentrations for phosphate and nitrate removal were determined.
147 citations
TL;DR: In this paper, the authors investigated the influence of loading and pre-treatment procedure to derive an optimal CuO-CeO2 catalyst for water-gas shift (WGS) reaction, and study in detail structure-activity relationships.
Abstract: In this work we investigated the influence of CuO loading and catalyst pretreatment procedure to derive an optimal CuO-CeO2 catalyst for water-gas shift (WGS) reaction, and to study in detail structure–activity relationships. Nanostructured catalyst samples prepared by co-precipitation and a 10, 15 and 20 mol% CuO content were examined by XRD, BET and TPR/TPD analyses and subjected to pulse WGS activity tests in the temperature range of 180–400 °C. As evaluated by TPR/TPD and N2O chemisorption analyses, with increasing CuO loading the portion of finely dispersed CuO nanoparticles decreases on behalf of larger CuO aggregates. Strong surface structure–activity dependence in WGS reaction was observed for all catalyst samples. It was established that increasing CuO content results in higher extent of CeO2 reduction, which has a positive effect on H2 production during the WGS reaction. Increasing calcination temperature on the other hand reduces BET surface area, induced by CuO sintering and agglomeration of CeO2 particles resulting in a negative effect on H2 production. Distinctive WGS activity dependence on surface acidity of examined solids was observed for all CuO loadings.
147 citations
TL;DR: In this article, the effect of preparation conditions such as resorcinol/catalyst ratio, the feed AgNO3 concentration, the ratio of aerogel mass/solution volume, immersion time and carbonization temperature on the bulk density and silver content as well as the BET surface area of the dispersed CAs was studied.
147 citations