Effect of DMF addition on the phase-chemical structure of Pd-doped methyl-modified silica membrane materials calcined in air atmosphere

References

• G. Li, M. Kanezashi, and T. Tsuru, Preparation of organic-inorganic hybrid silica membranes using organoalkoxysilanes: The effect of pendant groups, J. Membr. Sci. 379 (1–2), 287–295 (2011).
   Web of Science ®Google Scholar
• H. F. Qureshi, A. Nijmeijer, and L. Winnubst, Influence of sol-gel process parameters on the micro-structure and performance of hybrid silica membranes, J. Membr. Sci. 446, 19–25 (2013).
   Web of Science ®Google Scholar
• S. K. Zhang, Q. Wei, Q. Y.　Li, et al., Preparation and hydrogen separation performance of microporous silica membranes modified by isobutyl groups, Membrane Science and Technology 36 (4), 46–53 (2016).( In Chinese)
   Google Scholar
• L. Liu, D. K. Wang, D. L. Martens, et al., Binary gas mixture and hydrothermal stability investigation of cobalt silica membranes, J. Membr. Sci. 493, 470–477 (2015).
   Web of Science ®Google Scholar
• X. G. Liu, Q. Wei, Y. L. Ding, et al., Pore Structure, Hydrogen separation and hydrothermal stability of hydrophobic organic-inorganic hybrid silica membranes modified by perfluorooctyl groups, Chinese J. Inorg. Chem. 30 (5), 1111–1118 (2014).
   Web of Science ®Google Scholar
• D. Uhlmann, S. Smart, and J. C. D da Costa, High temperature steam investigation of cobalt oxide silica membranes for gas separation, Sep. Purif. Technol. 76 (2), 171–181 (2010).
   Web of Science ®Google Scholar
• M. Kanezashi, M. Kawano, T. Yoshioka, et al., Organic-inorganic hybrid silica membranes with controlled silica network size for propylene/propane separation, J. Ind. Eng. Chem. Res. 51 (2), 944–953 (2012).
   Web of Science ®Google Scholar
• H. L. Castricum, H. F. Qureshi, A. Nijmeijer, et al., Hybrid silica membranes with enhanced hydrogen and CO2 separation properties, J. Membr. Sci. 488, 121–128 (2015).
   Web of Science ®Google Scholar
• S. H. Kim, J. H. Park, Y. Hong, et al., Removal of BTX using granular octyl-functionalized mesoporous silica nanoparticle, Int. Biodeter. Biodegr. 95 (Part A), 219–224 (2014).
   Web of Science ®Google Scholar
• S. Araki, S. Imasaka, S. Tanaka, et al., Pervaporation of organic/water mixtures with hydrophobic silica membranes functionalized by phenyl groups, J. Membr. Sci. 380 (1–2), 41–47 (2011).
   Web of Science ®Google Scholar
• Y. J. Han, K. J. Ko, H. K. Choi, et al., Kinetic effects of methane on binary mixture separation on methyltriethoxysilane templated silica membranes, Sep. Purif. Technol. 182, 151–159 (2017).
   Web of Science ®Google Scholar
• J. Yang, and J. Chen, Hydrophobic modification and silver doping of silica membranes for H2/CO2 separation, J. CO₂ Util. 3–4, 21–29 (2013).
   Web of Science ®Google Scholar
• Q. Wei, Y. L. Ding, Z. R. Nie, et al., Wettability, pore structure and performance of perfluorodecyl-modified silica membranes, J. Membr. Sci. 466, 114–122 (2014).
   Web of Science ®Google Scholar
• M. K. Mardkhe, B. Huang, C. H. Bartholomew, et al., Synthesis and characterization of silica doped alumina catalyst support with superior thermal stability and unique pore properties, J. Porous. Mater. 23 (2), 475–487 (2016).
   Web of Science ®Google Scholar
• S. J. Ahn, A. Takagaki, T. Sugawara, et al., Permeation properties of silica-zirconia composite membranes supported on porous alumina substrates, J. Membr. Sci. 526, 409–416 (2017).
   Web of Science ®Google Scholar
• M. Kanezashi, and M. Asaeda, Hydrogen permeation characteristics and stability of Ni-doped silica membranes in steam at high temperature, J. Membr. Sci. 271 (1–2), 86–93 (2006).
   Web of Science ®Google Scholar
• V. Boffa, L. Parmeggiani, A. H. Nielsen, et al., Hydrophilicity and surface heterogeneity of TiO2-doped silica materials for membrane applications, Microporous Mesoporous Mater. 221, 81–90 (2016).
   Web of Science ®Google Scholar
• J. Yang, H. Li, R. Mu, et al., Thermal Analysis Kinetics of Pd-doped SiO2 organic-inorganic hybrid material, Key Eng. Mater. 727, 272–279 (2017).
   Google Scholar
• M. Kanezashi, D. Fuchigami, T. Yoshioka, et al., Control of Pd dispersion in sol-gel-derived amorphous silica membranes for hydrogen separation at high temperatures, J. Membr. Sci. 439, 78–86 (2013).
   Web of Science ®Google Scholar
• B. Ballinger, J. Motuzas, S. Smart, et al., Palladium cobalt binary doping of molecular sieving silica membranes, J. Membr. Sci. 451, 185–191 (2014).
   Web of Science ®Google Scholar
• A. Darmawan, J. Motuzas, S. Smart, et al., Binary iron cobalt oxide silica membrane for gas separation, J. Membr. Sci. 474, 32–38 (2015).
   Web of Science ®Google Scholar
• N. A. Al-Mufachi, N. V. Rees, and R. Steinberger-Wilkens, Hydrogen selective membranes: A review of palladium-based dense metal membranes, Renew Sust Energy Rev. 47, 540–551 (2015).
   Web of Science ®Google Scholar
• J. H. Kim, K. Y. Jung, and K. Y. Park, Effect of urea, NH4OH, and DCCA on texture properties of alumina prepared by ultrasonic spray pyrolysis, J. Ind. Eng. Chem. 18 (1), 344–348 (2012).
   Web of Science ®Google Scholar
• A. P. Beyler, D. M. Boye, K. R. Hoffman, et al., Fluorescence enhancement in rare earth doped sol-gel glass by N,N dimethylformamide as a drying control chemical additive, Physics Procedia 13 (13), 4–8 (2011).
   Google Scholar
• T. Adachi, and S. Sakka, The role of N,N-dimethylformamide, a DCCA, in the formation of silica gel monoliths by sol-gel method, J. Non-cryst. Solids. 99 (1), 118–128 (1988).
   Web of Science ®Google Scholar
• A. Darmawan, L. Karlina, Y. Astuti, et al., Structural evolution of nickel oxide silica sol-gel for the preparation of interlayer-free membranes, J. Non-cryst. Solids. 447, 9–15 (2016).
   Web of Science ®Google Scholar
• A. Darmawan, J. Motuzas, S. Smart, et al., Gas permeation redox effect of binary iron oxide/cobalt oxide silica membranes, Sep. Purif. Technol. 171, 248–255 (2016).
   Web of Science ®Google Scholar
• J. Yang, J. Chen, and J. Song, Studies of the surface wettability and hydrothermal stability of methyl-modified silica films by FT-IR and Raman spectra, Vib. Spectrosc. 50 (2), 178–184 (2009).
   Web of Science ®Google Scholar