RESULTS FOR nanoporous materials
1-20 OF 388 RESULTS FOR
Results shown limited to content with bounding coordinates.
Published: 01 June 2009
Clays and Clay Minerals (2009) 57 (3): 290-301.
... by plasma-enhanced chemical vapor deposition method . Journal of Applied Physics , 87 , 3715 – 3722 . MacKenzie , K.J.D. , Okada , K. , and Temuujin , J. ( 2004 ) Nanoporous inorganic materials from mineral templates . Current Applied Physics , 4 , 167 – 170 . Madhusoodana...
Series: Clay Minerals Society Workshop Lectures
Published: 01 January 2014
... nanoparticles, e.g. TiO 2 ( Aranda et al. , 2008 ) or А1 2 Оз ( Belver et al. , 2013 ). The development of porous heterostructures based on clay minerals (PCHs) is a topic that has attracted researchers trying to develop nanoporous materials with pre-designed properties for uses in catalysis...
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Flow characteristics and a permeability model in nanoporous media with solid-liquid interfacial effects
Publisher: Society of Exploration Geophysicists
Published: 26 October 2016
Interpretation (2016) 5 (1): SB1-SB8.
...: http://dx.doi.org/10.1063/1.4712139 . He P. Li H. Hou X. , 2014 , Excess-entropy scaling of dynamics for methane in various nanoporous materials : Chemical Physics Letters , 593 , 83 – 88 , doi: http://dx.doi.org/10.1016/j.cplett.2013.12.044 . CHPLBC 0009-2614...
Diegogattaite, Na 2 CaCu 2 Si 8 O 20 ·H 2 O: a new nanoporous copper sheet silicate from Wessels Mine, Kalahari Manganese Fields, Republic of South Africa
Journal: Mineralogical Magazine
Published: 01 December 2013
Mineralogical Magazine (2013) 77 (8): 3155-3162.
.... It represents a completely new silicate topology based upon a double-sheet of SiO 4 tetrahedra composed of connected 6 4 8 2 cages. The structure of diegogattaite is related to those of synthetic nanoporous Na-Cu-Si-O-(OH)-H 2 O (CuSH) compounds, which are of interest to the solid-state chemistry community...
Heat capacity of synthetic hydrous Mg-cordierite at low temperatures: Thermodynamic properties and the behavior of the H 2 O molecule in selected hydrous micro and nanoporous silicates
Published: 01 February 2007
American Mineralogist (2007) 92 (2-3): 388-396.
... ), and paranatrolite, Na 2 Al 2 Si 3 O 10 ·3H 2 O ( Paukov et al. 2002 ) at T < 300 K. It is evident that the heat-capacity behavior for the H 2 O molecule in Mg-cordierite differs fundamentally from its behavior in the other micro/nanoporous phases. We interpret the macroscopic thermodynamic data in terms...
Morphology, Genesis, and Distribution of Nanometer-Scale Pores in Siliceous Mudstones of the Mississippian Barnett Shale
Journal: Journal of Sedimentary Research
Publisher: SEPM Society for Sedimentary Geology
Published: 01 December 2009
Journal of Sedimentary Research (2009) 79 (12): 848-861.
... among bedding-plane-parallel wisps of organic-rich matter ( Fig. 5D ) and in association with extremely fine-grained matrix material, but not in direct contact with any grains of organic matter ( Fig. 4D ). Because the vast majority of nanopores are found within organic matter, particularly grains...
AN ELECTRON PARAMAGNETIC RESONANCE SPECTROSCOPY INVESTIGATION OF THE RETENTION MECHANISMS OF Mn AND Cu IN THE NANOPORE CHANNELS OF THREE ZEOLITE MINERALS
Published: 01 December 2012
Clays and Clay Minerals (2012) 60 (6): 588-598.
...Daniel R. Ferreira; Cristian P. Schulthess; James E. Amonette; Eric D. Walter Abstract The adsorption mechanisms of divalent cations in zeolite nanopore channels can vary as a function of their pore dimensions. The nanopore inner-sphere enhancement (NISE) theory predicts that ions may dehydrate...
Published: 01 January 2013
American Mineralogist (2013) 98 (1): 154-162.
... of nanopores formation, we propose an alternative mechanism based upon volume differences between the precursor material and end product. Hematite nanocrystals in this study were transformed from ferrihydrite nanoparticles as described above ( Fischer and Schwertmann 1975 ; Cornell et al. 1989 ). The chemical...
Includes: Supplemental Content
Reactions of strontium anorthite with H 2 O+CaCl 2 fluids at 500 °C and high pressure: Kinetic information from in situ synchrotron-radiation XRF analyses of the fluid
Published: 01 October 2012
American Mineralogist (2012) 97 (10): 1700-1707.
... (run CaSr5) showed that it had a high porosity. The pore diameter was mostly 10 to 20 nm ( Fig. 4b ). Neither micro- nor nanopores were found in a thin foil cut from a strontium anorthite crystal from the starting material. Many pores contained a Sr-rich chloride phase. However, its Sr-Ca ratio could...
Includes: Supplemental Content
Publisher: Geological Society of America
Published: 01 May 2003
Geology (2003) 31 (5): 387-390.
... measurements on disaggregated geologic materials may not represent chemical conditions in actual systems, because they may not be able to capture the effect of nanopore confinement. This possibility is consistent with the measurement of apparent distribution coefficients of radionuclides in saturated bentonite...
Published: 01 July 2014
Figure 6 Micrographs of nanoporous amorphous Fe-phosphate taken by field-emission scanning electron microscopy (FE-SEM), charging was present on some material surfaces. ( a and b ) 24 h synthesized amorphous Fe-phosphate (scale bar = 100 nm) with particles sizes ~26 to 100 nm in diameter. ( c
Published: 01 August 2006
Clays and Clay Minerals (2006) 54 (4): 485-490.
... et al. , 2001 ; Ryoo et al. , 2001 ; Shi et al. , 2004 ) synthesized carbons composed mainly of mesopores using inorganic silica materials such as SBA-15 ( Jun et al. , 2000 ; Ryoo et al. , 2001 ; Shi et al. , 2004 ), SBA-1 ( Kruk and Jaronic, 2000 ) and MCM-48 ( Kruk and Jaronic, 2000...
Alexander Moronta, Alexander Moronta, Nobuhiro Iwasa, Shin-Ichiro Fujita, Masahide Shimokawabe, Masahiko Arai
Published: 01 December 2005
Clays and Clay Minerals (2005) 53 (6): 622-630.
.... Hwang et al. (2001) reported that the pore structure of pillared clay supports affects the catalytic activity in CO 2 reforming of methane; in this regard, mesoporous materials are good catalyst supports for this reaction. The clay composites were prepared using a similar procedure...
Published: 01 July 2014
Figure 5 Micrographs of nanoporous amorphous Al-phosphate taken by field-emission scanning electron microscopy (FE-SEM). ( a ) 24 h synthesized amorphous Al-phosphate (scale bar = 100 nm) with particles sizes ~45 to 64 nm in diameter, ( b ) 24 h synthesis of amorphous Al-phosphate (scale bar = 1
Series: Geological Society, London, Special Publications
Publisher: Geological Society of London
Published: 01 January 2017
... features in different shales are demonstrated, and key limitations and benefits summarized. Current challenges and future perspectives in shale imaging techniques and their applications are discussed. Gas is generally stored in shale reservoirs in three forms: (i) free gas in micro- or nanopores...
Optimization of process parameters to obtain NH 4 -clinoptilolite as a supplement to ecological fertilizer
Journal: Clay Minerals
Published: 01 December 2014
Clay Minerals (2014) 49 (5): 735-745.
... modification methods, has widened the range of ion-exchange materials ( Chutia et al ., 2009 ; Ramesh et al ., 2010 ). Usually, modification of zeolites occurs through cation-exchange induced conversion of polycationic natural material into the monocationic form (H + , K + , Ca 2+ , NH 4 + , etc...
Ian E. Grey, Pierre Bordet, Nicholas C. Wilson, Raimunda Townend, Timothy J. Bastow, Michela Brunelli
Published: 01 January 2010
American Mineralogist (2010) 95 (1): 161-170.
... of the peaks corresponding to the different interatomic distances in the two samples. In Figure 7b , the difference between the PDF patterns is plotted. This type of differential PDF is finding increasing utilization in the probing of host-guest interactions in nanoporous materials ( Chapman et al. 2005...
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 June 2017
AAPG Bulletin (2017) 101 (6): 807-827.
... (the temperature at maximum rate of petroleum generation by Rock-Eval pyrolysis) around 445°C (833°F), approximately 0.8% vitrinite reflectance. Shrinkage of kerogen itself leads to the formation of organic nanopores, and associated porosity increase, in the gas window. The Posidonia Shale is one of the most...
Published: 01 February 2017
Clays and Clay Minerals (2017) 65 (1): 42-51.
.... ( 2010 ) Physical adsorption characterization of nanoporous materials . Chemie Ingenieur Technik , 82 , 1059 – 1073 . Valtchev V.P. Bozhilov K.N. ( 2004 ) Transmission electron microscopy study of the formation of FAU-type zeolite at room temperature . The Journal of Physical...
Weixing Li, Patrick Kluth, Daniel Schauries, Matias D. Rodriguez, Maik Lang, Fuxiang Zhang, Maxim Zdorovets, Christina Trautmann, Rodney C. Ewing
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 1127-1132.
... individual track [of the total 293 randomly orientated FTs that were measured ( Paul and Fitzgerald 1992 )]. For complex materials (e.g., apatite) where different zones may have similar diffraction patterns, the incorrect indexing of the zone axis of a grain is possible. Furthermore, because it is impossible...