Highly Selective Solid Acid Catalyst H1-xTi2(PO4)3-x(SO4)x for Non-Oxidative Dehydrogenation of Methanol and Ethanol

被引：13
作者：
Mitran, Gheorghita [1 ]
Mieritz, Daniel G. [2 ]
Seo, Dong-Kyun [2 ]
机构：
[1] Univ Bucharest, Dept Organ Chem Biochem & Catalysis, Lab Chem Technol & Catalysis, Fac Chem, 4-12 Blv Regina Elisabeta, Bucharest 030018, Romania
[2] Arizona State Univ, Sch Mol Sci, Tempe, AZ 85287 USA
来源：
CATALYSTS | 2017年 / 7卷 / 03期
关键词：
methanol; ethanol; dehydrogenation; hydrogen titanium phosphate sulfate; ANHYDROUS FORMALDEHYDE; CONVERSION; OXIDATION; PHOSPHATES;
D O I：
10.3390/catal7030095
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The conversion of alcohols towards aldehydes in the presence of catalysts by non-oxidative dehydrogenation requires special importance from the perspective of green chemistry. Sodium (Na) super ionic conductor (NASICON)-type hydrogen titanium phosphate sulfate (HTPS; H1-xTi2(PO4)(3-x)(SO4)(x,) X = 0.5-1) catalysts were synthesized by the sol-gel method, characterized by N-2 gas sorption, X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), NH3 temperature-programmed desorption (NH3-TPD), ultraviolet-visible (UV-VIS) spectroscopy, and their catalytic properties were studied for the non-oxidative dehydrogenation of methanol and ethanol. The ethanol is more reactive than methanol, with the conversion for ethanol exceeding 95% as compared to methanol, where the conversion has a maximum value at 55%. The selectivity to formaldehyde is almost 100% in methanol conversion, while the selectivity to acetaldehyde decreases from 56% to 43% in ethanol conversion, when the reaction temperature is increased from 250 to 400 degrees C.
引用
收藏
页数：13
相关论文
共 34 条
  • [1] A Review: Fundamental Aspects of Silicate Mesoporous Materials
    ALOthman, Zeid A.
    [J]. MATERIALS, 2012, 5 (12) : 2874 - 2902
  • [2] Synthesis and catalytic properties of M0.5(1+x)Fe x Ti2-x (PO4)3 (M = Co, Ni, Cu; 0 aparts per thousandcurrency sign x aparts per thousandcurrency sign 2) for methanol conversion reactions
    Asabina, E. A.
    Orekhova, N. V.
    Ermilova, M. M.
    Pet'kov, V. I.
    Glukhova, I. O.
    Zhilyaeva, N. A.
    Yaroslavtsev, A. B.
    [J]. INORGANIC MATERIALS, 2015, 51 (08) : 793 - 798
  • [3] Catalysts for the Selective Oxidation of Methanol
    Brookes, Catherine
    Bowker, Michael
    Wells, Peter P.
    [J]. CATALYSTS, 2016, 6 (07):
  • [4] The synthesis, characterization and application of Ag-SiO2-Al2O3 sol-gel composites
    Cao, Y
    Dai, WL
    Deng, JF
    [J]. MATERIALS LETTERS, 2001, 50 (01) : 12 - 17
  • [5] Titanium alkoxides immobilized on magnetic mesoporous silica nanoparticles and their characterization by solid state voltammetry techniques: Application in ring opening polymerization
    Cruz, Paula
    Perez, Yolanda
    del Hierro, Isabel
    [J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2017, 240 : 227 - 235
  • [6] Direct dehydrogenation of methanol to formaldehyde over novel Ag-containing ceramics
    Dong, Y
    Dai, WL
    Li, JL
    Deng, JF
    [J]. CHEMISTRY LETTERS, 2001, (06) : 534 - 535
  • [7] Synthesis, textural and catalytic properties of nanosized Fe2O3/MgO system
    El-Molla, Sahar A.
    Mahmoud, Hala R.
    [J]. MATERIALS RESEARCH BULLETIN, 2013, 48 (10) : 4105 - 4111
  • [8] Catalytic properties of Cu/SBA-3 in oxidative dehydrogenation of methanol-The effect of the support composition
    Florek-Milewska, Justyna
    Decyk, Piotr
    Ziolek, Maria
    [J]. APPLIED CATALYSIS A-GENERAL, 2011, 393 (1-2) : 215 - 224
  • [9] PHYSICAL ADSORPTION ON NON-UNIFORM SURFACES
    HALSEY, G
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1948, 16 (10) : 931 - 937
  • [10] Hattori H.Ono., 2015, SOLID ACID CATALYSIS
1234