Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Steven F. Dec"'
Autor:
Steven F. Dec, Andrew M. Herring
Publikováno v:
The Journal of Physical Chemistry C. 122:15539-15557
The group II salts of 12-tungstophophoric acid were studied in the limiting state of hydration using a suite of 1H solid-state NMR experiments, theoretical analysis, and density functional theory (DFT) energy calculations. Various nonspinning (NS) 1H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91ee51681d9339216ce90ed33c136938
https://doi.org/10.1021/acs.jpcc.8b04370
https://doi.org/10.1021/acs.jpcc.8b04370
Autor:
Steven F. Dec
Publikováno v:
The Journal of Physical Chemistry C. 116:9660-9665
The reaction of methane, ethane, and water to form structure I (sI) and structure II (sII) clathrate hydrates at 268 K was studied using solid-state 13C NMR. The reaction can be described in terms of four stages: stage 1, the simultaneous formation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c63142a341d1ec48f0e2ef082612325
https://doi.org/10.1021/jp301766y
https://doi.org/10.1021/jp301766y
Publikováno v:
The Journal of Physical Chemistry B. 114:6065-6073
The low-frequency electrical properties of mixtures of silicates and saline H(2)O were measured over broad ranges of temperature and frequency to assess the subfreezing interactions between these materials synoptically, particularly the effects of ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa729db0663e38d8b89a352e463acfcb
https://doi.org/10.1021/jp9070778
https://doi.org/10.1021/jp9070778
Autor:
Mei-Chen Kuo, Hui Ren, Andrew S. Perdue, Steven J. Hamrock, Sonny Sachdeva, Steven F. Dec, Michael A. Yandrasits, Matthew H. Frey, James L. Horan, Andrew M. Herring
Publikováno v:
ECS Transactions. 25:1101-1107
We have fabricated proton conducting films using monomers based on vinyl substituted silicotungstic acid heteropoly acids (HPAs) and acrylate co-monomers. In this work we probe the limits of this system based on increasing the weight loading of the H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b6baaa51ea2099cf30fb9bd1c39ed77
https://doi.org/10.1149/1.3210663
https://doi.org/10.1149/1.3210663
Autor:
Steven F. Dec
Publikováno v:
The Journal of Physical Chemistry C. 113:12355-12361
The formation of methane−ethane (C1−C2) clathrate hydrate was studied with high-resolution, solid-state 13C NMR and density functional theory techniques. The 13C NMR experiments yield a number of significant findings: (1) the hydration number of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d5fbff9414bc3fd00a3e6d90596f502
https://doi.org/10.1021/jp9009977
https://doi.org/10.1021/jp9009977
Autor:
Matthew H. Frey, Hui Ren, Steven F. Dec, Benjamin J. Sikora, Andrew M. Herring, Fanqin Meng, Anitha Genupur, Gregory M. Haugen, Mei-Chen Kuo, James L. Horan, Michael A. Yandrasits, Steven J. Hamrock
Publikováno v:
ChemSusChem. 2:226-229
Highly conducive to high conductivity: Polyoxometalates were incorporated in the backbone of a hydrocarbon polymer to produce proton-conducting films. These first-generation materials contain large, dispersed clusters of polyoxometalates. Although th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::004f6969309e8af2dbe31d6a930beafc
https://doi.org/10.1002/cssc.200800237
https://doi.org/10.1002/cssc.200800237
Publikováno v:
The Journal of Physical Chemistry B. 112:15382-15390
We measured the 1 mHz-1 MHz electrical properties of ice-hydrate binary systems formed from solutions of NaCl, CaCl(2), and MgSO(4), with supplementary measurements of HCl. Below the eutectic temperature, electrical parameters are well described by m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93b07659de735f02310d62f52235c10d
https://doi.org/10.1021/jp8055366
https://doi.org/10.1021/jp8055366
Autor:
Lucy Ren, Matthew H. Frey, Mei-Chen Kuo, Steven F. Dec, Anitha Genupur, Andrew M. Herring, Horan James L, Mike A. Yandrasits, Stephen J. Hamrock
Publikováno v:
ECS Transactions. 16:699-704
The heteropoly acids (HPAs) are a class of inorganic oxides that have some of the highest solid state proton conductivities known at room temperature. At elevated temperatures proton diffusion coefficients in these crystalline materials increase, but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33668995a73043ba969ef68cc0c77550
https://doi.org/10.1149/1.2981905
https://doi.org/10.1149/1.2981905
Autor:
Fanqin Meng, James L. Horan, Niccolo V. Aieta, Steven F. Dec, John A. Turner, Matthew H. Frey, Steven J. Hamrock, Andrew M. Herring, D. L. Williamson, Phat Pham, Michael A. Yandrasits
Publikováno v:
Electrochimica Acta. 53:1372-1378
A perfluorosulfonic acid (PFSA) polymer with pendant side chain –O(CF 2 ) 4 SO 3 H was doped with the heteropoly acids (HPAs), H 3 PW 12 O 40 and H 4 SiW 12 O 40 . Infrared spectroscopy revealed a strong interaction between the HPA and the PFSA ion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a334e7534d3f8c78a01f1352d97c82c1
https://doi.org/10.1016/j.electacta.2007.06.047
https://doi.org/10.1016/j.electacta.2007.06.047
Autor:
Steven F. Dec, Kristen E. Bowler, Laura J. Rovetto, Laura L. Stadterman, E. Dendy Sloan, Carolyn A. Koh
Publikováno v:
Fluid Phase Equilibria. 261:407-413
The objective of this work was to enhance understanding of gas hydrate dissociation, and provide information to help evaluate gas hydrate processes, such as ocean CO 2 sequestration and CH 4 recovery from natural gas hydrates in deep sea sediments. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ffc2ebe01f488a3f5ceaa76eeb96cb9
https://doi.org/10.1016/j.fluid.2007.08.003
https://doi.org/10.1016/j.fluid.2007.08.003