High-Loading Nickel Phosphide Catalysts Supported on SiO2-TiO2 for Hydrodeoxygenation of Guaiacol

被引：38

作者：

Zhang, Peng ^{[1
,2
]}

Sun, Yu ^{[1
,2
]}

Lu, Mohong ^{[1
,2
]}

Zhu, Jie ^{[1
,2
]}

Li, Mingshi ^{[1
,2
]}

Shan, Yuhua ^{[1
,2
]}

Shen, Jianyi ^{[3
]}

Song, Chunshan ^{[4
,5
]}

机构：

[1] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Changzhou 213164, Peoples R China

[2] Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Peoples R China

[3] Nanjing Univ, Sch Chem & Chem Engn, Lab Mesoscop Chem, Nanjing 210093, Jiangsu, Peoples R China

[4] Penn State Univ, Dept Energy & Mineral Engn, EMS Energy Inst, Clean Fuels & Catalysis Program, 209 Acad Projects Bldg, State Coll, PA 16802 USA

[5] Penn State Univ, Dept Chem Engn, EMS Energy Inst, Clean Fuels & Catalysis Program, 209 Acad Projects Bldg, State Coll, PA 16802 USA

来源：

ENERGY & FUELS | 2019年 / 33卷 / 08期

基金：

中国国家自然科学基金;

关键词：

NI2P CATALYSTS; MODEL-COMPOUND; ATMOSPHERIC HYDRODEOXYGENATION; METHYL LAURATE; OXYGEN-REMOVAL; MIXED OXIDES; HYDRODESULFURIZATION; PHASE; PERFORMANCE; DEOXYGENATION;

D O I：

10.1021/acs.energyfuels.9b01538

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

High-loading NixPy catalysts supported on SiO2-TiO2 binary oxides with different Si/Ti atomic ratios were prepared by liquid-phase phosphidation using triphenylphosphine (PPh3) and valued for the hydrodeoxygenation (HDO) of guaiacol. The samples synthesized were characterized by N-2 adsorption, X-ray diffraction (XRD), transmission electron microscopy, X-ray photoelectron spectroscopy (XPS), and ammonia temperature-programmed desorption. The XRD and XPS results showed that the Ni2P/Ni12P5 mixed phase was formed when SiO2-TiO2 binary oxides were employed as supports, whereas only Ni2P and Ni12P5 phases were produced on SiO2 and TiO2 single oxides, respectively. XPS analysis showed that TiO2-x species were generated on the surface of the catalyst during the reduction of the precursor, and the electron transfer occurred from TiO2-x species to the NixPy surface. TiO2-x species on the NixPy surface would contribute to the high HDO activity of guaiacol on NixPy catalysts because the presence of TiO2-x species promoted the adsorption of guaiacol and activation of the C-O bond in the guaiacol molecule. HDO reaction of guaiacol on NixPy catalysts dramatically followed the hydrogenation path owing to the high hydrogenation activity of NixPy catalysts.

引用

页码：7696 / 7704

页数：9