scispace - formally typeset
Search or ask a question
Institution

ExxonMobil

CompanyIrving, Texas, United States
About: ExxonMobil is a company organization based out in Irving, Texas, United States. It is known for research contribution in the topics: Catalysis & Polymerization. The organization has 16969 authors who have published 23758 publications receiving 535713 citations. The organization is also known as: Exxon Mobil Corporation & Exxon Mobil Corp..
Topics: Catalysis, Polymerization, Polymer, Hydrocarbon, Alkyl


Papers
More filters
Journal ArticleDOI
TL;DR: A new effective inter-droplet potential is proposed which is used to determine the elastic response of a monodisperse collection of disordered droplets as a function of volume fraction, and suggests that anharmonicity and disorder are responsible for the quasi-linear increase of G and Pi observed at $\varphi_c".
Abstract: We present a new model to describe the unusual elastic properties of compressed emulsions. The response of a single droplet under compression is investigated numerically for different Wigner-Seitz cells. The response is softer than harmonic, and depends on the coordination number of the droplet. Using these results, we propose a new effective interdroplet potential which is used to determine the elastic response of a monodisperse collection of disordered droplets as a function of volume fraction. Our results are in excellent agreement with recent experiments. This suggests that anharmonicity together with disorder are responsible for the quasilinear increase of $G$ and $\ensuremath{\Pi}$ observed at ${\ensuremath{\phi}}_{c}$.

177 citations

Journal ArticleDOI
TL;DR: In this paper, a high-resolution, small-angle x-ray study of aggregated gold colloids over the range 0.0003 to 0.08 was performed, and a simple model that correctly accounts for nonfractal short-range order with a crossover to long-range fractal correlations was proposed.
Abstract: We report a high-resolution, small-angle x-ray study of aggregated gold colloids over the range 0.0003 to 0.08 ${\mathrm{\AA{}}}^{\ensuremath{-}1}$. We are able to fit our data with a simple model that correctly accounts for nonfractal short-range order with a crossover to long-range fractal correlations. This provides new information on the structure of real aggregates, and new insight into the aggregation processes which lead to their formation.

177 citations

Journal ArticleDOI
TL;DR: In this paper, x-ray measurements on well aligned, freely suspended films of stacked bilayer membranes of the phospholipid dimyristoyl-phosphatidylcholine in a continuously variable humidity- and temperature-controlled environment are presented.
Abstract: We report x-ray measurements on well aligned, freely suspended films of stacked bilayer membranes of the phospholipid dimyristoyl-phosphatidylcholine in a continuously variable humidity- and temperature-controlled environment. Remarkably, the most commonly observed L/sub ..beta..//sub '/ phase is in fact three distinct 2D phases where the phase transitions are driven by hydration forces and the phases are distinguished by the relation between the molecular tilt direction and the 2D bond direction.

176 citations

Journal ArticleDOI
TL;DR: In this article, the effect of low-level hydrogen sulfide (H 2 S) on carbon dioxide (CO 2 ) corrosion of carbon steel in acidic solutions, and the mechanism of iron sulfide scale formation in CO 2 /H 2S environments were investigated using linear polarization resistance (LPR) technique.

176 citations

Journal ArticleDOI
TL;DR: In this paper, the authors used a modified Short-Rod methodology to measure fracture toughness in Mancos shale and found that the fracture should deviate towards the plane with lowest toughness regardless of the loading conditions.
Abstract: The use of hydraulic fracturing to recover shale-gas has focused attention on the fundamental fracture properties of gas-bearing shales, but there remains a paucity of available experimental data on their mechanical and physical properties. Such shales are strongly anisotropic, so that their fracture propagation trajectories depend on the interaction between their anisotropic mechanical properties and the anisotropic in-situ stress field in the shallow crust. Here we report fracture toughness measurements on Mancos shale determined in all three principal fracture orientations; Divider, Short-Transverse and Arrester, using a modified Short-Rod methodology. Experimental results for a range of other sedimentary and carbonate rocks are also reported for comparison purposes. Significant anisotropy is observed in shale fracture toughness measurements at ambient conditions, with values, as high as 0.72MPam1/2 where the crack plane is normal to the bedding, and values as low as 0.21MPam1/2 where the crack plane is parallel to the bedding. For cracks propagating non-parallel to bedding, we observe a tendency for deviation towards the bedding-parallel orientation. Applying a maximum energy release rate criterion, we determined the conditions under which such deviations are more or less likely to occur under more generalized mixed-mode loading conditions. We find for Mancos shale that the fracture should deviate towards the plane with lowest toughness regardless of the loading conditions.

176 citations


Authors

Showing all 16987 results

NameH-indexPapersCitations
David A. Weitz1781038114182
Avelino Corma134104989095
Peter Hall132164085019
James A. Dumesic11861558935
Robert H. Crabtree11367848634
Costas M. Soukoulis10864450208
Nicholas J. Turro104113153827
Edwin L. Thomas10460640819
Israel E. Wachs10342732029
Andrew I. Cooper9938934700
Michael J. Zaworotko9751944441
Enrique Iglesia9641631934
Yves J. Chabal9451933820
George E. Gehrels9245430560
Ping Sheng9059337141
Network Information
Related Institutions (5)
Sandia National Laboratories
46.7K papers, 1.4M citations

84% related

Delft University of Technology
94.4K papers, 2.7M citations

84% related

Los Alamos National Laboratory
74.6K papers, 2.9M citations

83% related

Oak Ridge National Laboratory
73.7K papers, 2.6M citations

82% related

Argonne National Laboratory
64.3K papers, 2.4M citations

82% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20234
202236
2021302
2020340
2019366
2018438