caa a22 4500 606174168 CHVBK 20210128100736.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s11244-015-0362-4 doi (NATIONALLICENCE)springer-10.1007/s11244-015-0362-4 Support Effects of Ni2P Catalysts on the Hydrodeoxygenation of Guaiacol: In Situ XAFS Studies [Elektronische Daten] [Ji-Sue Moon, Yong-Kul Lee] The hydrodeoxygenation (HDO) of guaiacol was investigated over SiO2, ZrO2, and active carbon (AC) supported Ni2P catalysts. The physical properties of the catalysts were analyzed by temperature-programmed reduction (H2-TPR), CO-uptake chemisorption, and N2 physisorption. X-ray diffraction and extended X-ray adsorption fine structure spectroscopy were used to obtain structural properties for the supported Ni2P catalysts. The HDO was tested in a batch reactor at 573K and 30atm. The Ni2P/SiO2 catalyst underwent a decrease in the HDO conversion from 87 to 30% for the first and second run of reaction. However, the Ni2P/ZrO2 and Ni2P/AC catalysts showed a little low but stable HDO conversions of 72 and 46%, respectively. The in situ XAFS analysis revealed that differently from the cases of Ni2P/ZrO2 or and Ni2P/AC catalysts, the local structure of the Ni2P on SiO2 support underwent an oxidation to form nickel phosphate during the reaction, demonstrating that the SiO2 based Ni2P was vulnerable to the water or hydroxyl group of the reactant due to the hydrophilic nature of SiO2 support. Springer Science+Business Media New York, 2015 Ni2P catalyst nationallicence Support effect nationallicence Hydrodeoxygenation nationallicence Guaiacol nationallicence In situ XAFS nationallicence Moon Ji-Sue Laboratory of Advanced Catalysis for Energy and Environment, Department of Chemical Engineering, Dankook University, 152 Jukjeonro, 448-701, Yongin, Republic of Korea aut Lee Yong-Kul Laboratory of Advanced Catalysis for Energy and Environment, Department of Chemical Engineering, Dankook University, 152 Jukjeonro, 448-701, Yongin, Republic of Korea aut Topics in Catalysis Springer US; http://www.springer-ny.com 58/4-6(2015-04-01), 211-218 1022-5528 58:4-6<211 2015 58 11244 https://doi.org/10.1007/s11244-015-0362-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11244-015-0362-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Moon Ji-Sue Laboratory of Advanced Catalysis for Energy and Environment, Department of Chemical Engineering, Dankook University, 152 Jukjeonro, 448-701, Yongin, Republic of Korea aut NATIONALLICENCE 700 1- Lee Yong-Kul Laboratory of Advanced Catalysis for Energy and Environment, Department of Chemical Engineering, Dankook University, 152 Jukjeonro, 448-701, Yongin, Republic of Korea aut NATIONALLICENCE 773 0- Topics in Catalysis Springer US; http://www.springer-ny.com 58/4-6(2015-04-01), 211-218 1022-5528 58:4-6<211 2015 58 11244