Evidence for dissociation in shock-compressed methane

被引：4

作者：

Tabak, G. ^{[1
,2
]}

Rygg, J. R. ^{[1
,2
,3
]}

Millot, M. ^{[4
]}

Kim, Y. -j. ^{[4
]}

Hamel, S. ^{[4
]}

Celliers, P. M. ^{[4
]}

Fratanduono, D. E. ^{[4
]}

Ali, S. ^{[4
]}

Erskine, D. ^{[4
]}

Boehly, T. R.

Suer, T. -A.

Dasenbrock-gammon, N. ^{[2
]}

Dias, R.

Zhang, S. ^{[1
]}

Hu, S. X. ^{[1
,2
,3
]}

Hansen, L. E. ^{[1
,2
]}

Henderson, B. J. ^{[1
,2
]}

Zaghoo, M. ^{[1
]}

Ogawa, T. ^{[5
]}

Murayama, D. ^{[5
]}

Miyanishi, K. ^{[5
,6
]}

Ozaki, N. ^{[5
,7
]}

Sano, T. ^{[7
]}

Jeanloz, R. ^{[8
]}

Hicks, D. G. ^{[9
]}

Eggert, J. H. ^{[3
]}

Collins, G. W. ^{[1
,2
,3
]}

机构：

[1] Lab Laser Energet, Rochester, NY 14623 USA

[2] Univ Rochester, Dept Phys & Astron, Rochester, NY 14611 USA

[3] Univ Rochester, Dept Mech Engn, Rochester, NY 14611 USA

[4] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[5] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[6] RIKEN, SPring 8 Ctr, Sayo, Hyogo 6795148, Japan

[7] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[8] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA

[9] Swinburne Univ Technol, Opt Sci Ctr, Dept Phys & Astron, Hawthorn, Vic 3122, Australia

来源：

PHYSICAL REVIEW B | 2024年 / 109卷 / 06期

基金：

美国国家科学基金会;

关键词：

EQUATION-OF-STATE; DIAMOND FORMATION; REFRACTIVE-INDEX; ICE LAYER; PRESSURE; GPA; HYDROCARBONS; NEPTUNE; LIQUID; TABLES;

D O I：

10.1103/PhysRevB.109.064102

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Theory and experiments show that, with increasing pressure, the chemical bonds of methane rearrange, leading to the formation of complex polymers and then to dissociation. However, there is disagreement on the exact conditions where these changes take place. In this study, methane samples were precompressed in diamond-anvil cells and then shock compressed to pressures reaching 400 GPa, the highest pressures yet explored in methane. The results reveal a qualitative change in the Hugoniot curve at 80-150 GPa, which is interpreted as a signature of dissociation based on thermodynamic calculations and theoretical predictions.

引用

页数：9

共 54 条

[1] Dissociation of methane into hydrocarbons at extreme (planetary) pressure and temperature
Ancilotto, F
Chiarotti, GL
Scandolo, S
Tosatti, E
[J]. SCIENCE, 1997, 275 (5304) : 1288 - 1290
[2] High-precision measurements of the equation of state of hydrocarbons at 1-10 Mbar using laser-driven shock waves
Barrios, M. A.
Hicks, D. G.
Boehly, T. R.
Fratanduono, D. E.
Eggert, J. H.
Celliers, P. M.
Collins, G. W.
Meyerhofer, D. D.
[J]. PHYSICS OF PLASMAS, 2010, 17 (05)
[3] Dissociation of CH4 at high pressures and temperatures:: Diamond formation in giant planet interiors?
Benedetti, LR
Nguyen, JH
Caldwell, WA
Liu, HJ
Kruger, M
Jeanloz, R
[J]. SCIENCE, 1999, 286 (5437) : 100 - 102
[4] Evidence of hydrogen-helium immiscibility at Jupiter-interior conditions
Brygoo, S.
Loubeyre, P.
Millot, M.
Rygg, J. R.
Celliers, P. M.
Eggert, J. H.
Jeanloz, R.
Collins, G. W.
[J]. NATURE, 2021, 593 (7860) : 517 - +
[5] Analysis of laser shock experiments on precompressed samples using a quartz reference and application to warm dense hydrogen and helium
Brygoo, Stephanie
Millot, Marius
Loubeyre, Paul
Lazicki, Amy E.
Hamel, Sebastien
Qi, Tingting
Celliers, Peter M.
Coppari, Federica
Eggert, Jon H.
Fratanduono, Dayne E.
Hicks, Damien G.
Rygg, J. Ryan
Smith, Raymond F.
Swift, Damian C.
Collins, Gilbert W.
Jeanloz, Raymond
[J]. JOURNAL OF APPLIED PHYSICS, 2015, 118 (19)
[6] Insulator-to-Conducting Transition in Dense Fluid Helium
Celliers, P. M.
Loubeyre, P.
Eggert, J. H.
Brygoo, S.
McWilliams, R. S.
Hicks, D. G.
Boehly, T. R.
Jeanloz, R.
Collins, G. W.
[J]. PHYSICAL REVIEW LETTERS, 2010, 104 (18)
[7] Imaging velocity interferometer system for any reflector (VISAR) diagnostics for high energy density sciences
Celliers, Peter M. M.
Millot, Marius
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2023, 94 (01)
[8] Line-imaging velocimeter for shock diagnostics at the OMEGA laser facility
Celliers, PM
Bradley, DK
Collins, GW
Hicks, DG
Boehly, TR
Armstrong, WJ
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (11) : 4916 - 4929
[9] Thermodynamics of diamond formation from hydrocarbon mixtures in planets
Cheng, Bingqing
Hamel, Sebastien
Bethkenhagen, Mandy
[J]. NATURE COMMUNICATIONS, 2023, 14 (01)
[10] The ruby pressure standard to 150 GPa
Chijioke, AD
Nellis, WJ
Soldatov, A
Silvera, IF
[J]. JOURNAL OF APPLIED PHYSICS, 2005, 98 (11)

← 1 2 3 4 5 6 →