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http://dx.doi.org/10.9713/kcer.2019.57.6.891

Effects of Composition in P-V-Mo Catalysts Supported on Activated Carbon for Vapor Formaldehyde Reaction  

Lee, So-eun (Climate Change Research Division, Korea Institute of Energy Research (KIER))
Kim, Seong-Soo (Climate Change Research Division, Korea Institute of Energy Research (KIER))
Jeong, Do-Young (Quantum Optics Division, Korea Atomic Energy Research Institute (KAERI))
Kang, Yong (Chemical Engineering and Applied Chemistry, Chungnam National University)
Lee, Seung-Jae (Climate Change Research Division, Korea Institute of Energy Research (KIER))
Publication Information
Korean Chemical Engineering Research / v.57, no.6, 2019 , pp. 891-897 More about this Journal
Abstract
In this study, heteropoly acid PVMo catalysts were supported on activated carbon with various composition of phosphoric acid ($H_3PO_4$), vanadium (V) pentoxide ($V_2O_5$) and molybdenum (VI) trioxide ($MoO_3$). Catalytic performance was examined at $140^{\circ}C$ for 1hour in vapor formaldehyde. XRD and BET analyses were carried with the catalysts before and after the reaction. Formaldehyde conversion was increased with decreasing Mo and $H_3PO_4$ content and increasing $V_2O_5$ content. Acidity of the catalysts was investigated with $NH_3-TPD$. Crystallinity of the catalysts was relatively low, and surface area was decreased after the reaction. In $NH_3-TPD$ result, the ratio of strong acid site corresponding to $NH_3$ desorption between $400^{\circ}C$ and $500^{\circ}C$ was increased by decreasing $MoO_3$ and $H_3PO_4$ content and increasing $V_2O_5$ content. Therefore, it was found that the strong acid site could affect the catalytic reactivity in vapor formaldehyde conversion.
Keywords
Vapor formaldehyde; Phosphoric acid; Vanadium pentoxide; Molybdenum trioxide; Activated carbon;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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