A diamond anvil cell for IR microspectroscopy

Chervin, J. C.; Canny, B.; Besson, Jean; Pruzan, Ph.

doi:10.1063/1.1145594

Cited by 189 publications

(97 citation statements)

References 10 publications

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“…Aliquots were then loaded into a membrane-type diamond-anvil cell containing type II diamonds with 500 µm culets [12]. A pure Ir gasket with an initial thickness of ~30 microns and 220 µm diameter sample chamber was used to contain each sample.…”

Section: Experimental Methodsmentioning

confidence: 99%

Melting Curve and High-Pressure Chemistry of Formic Acid to 8 GPa and 600 K

et al. 2005

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We have determined the melting temperature of formic acid(HCOOH) to 8.5 GPa using infrared absorption spectroscopy, Raman spectroscopy and visual observation of samples in a resistively heated diamond-anvil cell. The experimentally determined melting curve compares favorably with a twophase thermodynamic model. Decomposition reactions were observed above the melting temperature up to a pressure of 6.5 GPa, where principal products were CO 2 , H 2 O and CO. At pressures above 6.5 GPa, decomposition led to solid-like reaction products. Infrared and Raman spectra of these recovered products indicate that pressure affects the nature of carbon-carbon bonding.

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Section: Experimental Methodsmentioning

confidence: 99%

Melting Curve and High-Pressure Chemistry of Formic Acid to 8 GPa and 600 K

et al. 2005

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“…The high pressure cell is made of non-magnetic CuBe, manufactured by the Laboratory PMC. Its design derives from the Chervin type membrane cell (Chervin et al, 1995). The HP-DAC is located on a stack of motorization stages that allows its alignment to the beam: vertical Z and horizontal X (transverse to the beam direction) translation stages, rotation around the vertical Z axis and around the horizontal X axis and rotation around the X-ray beam direction.…”

Section: The Optical Schemementioning

confidence: 99%

XMCD under pressure at the FeKedge on the energy-dispersive beamline of the ESRF

Mathon¹,

Baudelet

Itié

et al. 2004

J Synchrotron Rad

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The present paper demonstrates the feasibility of X-ray Absorption Spectroscopy (XAS) and X-ray Magnetic Circular Dichroism (XMCD) at high pressure at the Fe-K edge on the ID24 energy dispersive beamline of the ESRF.In 3d transition metals, performing experiments at the hard X-ray K-edge rather than at the magnetically interesting soft X-ray L-edges represents, the only way to access the high pressure regime obtainable with Diamond Anvil Cells.The simultaneous availability of a local structure (XAS) and of a magnetic (XMCD) probe on the sample in identical thermodynamical conditions is essential to study correlations between local structural and magnetic properties.We briefly summarize the state of the art theoretical understanding of K-edge XMCD data, then illustrate the setup of beamline ID24 for high pressure XMCD experiments and underline the conditions required to perform measurements at the Kedges of 3d transition metals. Finally, we present two examples of recent high pressure results at the Fe-K edge in pure Fe and Fe 3 O 4 powder.

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“…Due to their pressure, temperature and chemical conditions, the deep-subsurface biotopes are hardly accessible by standard biological techniques. The deep-subsurface ecosystem can be partially reproduced by the use of high pressure/high temperature apparatus, such as autoclaves or cylinder-piston systems [9][10][11], Paris-Edinburgh presses [12], or optical high pressure cells based either on sapphire [13,14] or on diamond anvils [15,16]. However, since many of the deep-biosphere microorganisms do not grow under atmospheric pressure, it is essential to be able to perform in situ kinetic studies.…”

Section: Introductionmentioning

confidence: 99%

Development of a low-pressure diamond anvil cell and analytical tools to monitor microbial activities in situ under controlled P and T

Oger

Daniel

Picard

2006

Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics

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To cite this version:Philippe Oger, Isabelle Daniel, Aude Picard. Development of a low-pressure diamond anvil cell and analytical tools to monitor microbial activities in situ under controlled P and T. poger@ens-lyon.fr AbstractWe have designed a new low-pressure Diamond Anvil Cell (DAC), calibrated two novel pressure calibrants and validated the use of semi-quantitative Raman and Xray spectroscopies to monitor the fate of microbes, their metabolism or their cellular components under controlled pressures and temperatures in the 0.1-1.4 GPa and 20°-300°C P,T range. The lowpressure DAC has a 250-600 µm thick observation diamond window to allow for lower detection limits and improved microscopic imaging. This new design allows the determination of cellular growth parameters from automated image analysis, which can be correlated with the spectroscopic data obtained on metabolism, ensuring high quality data collection on microbial activity under pressure. The novel pressure sensors offer the ease of use of the well-known ruby scale, while being more sensitive and reacting to pressure variations instantaneously.

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A diamond anvil cell for IR microspectroscopy

Cited by 189 publications

References 10 publications

Melting Curve and High-Pressure Chemistry of Formic Acid to 8 GPa and 600 K

Melting Curve and High-Pressure Chemistry of Formic Acid to 8 GPa and 600 K

XMCD under pressure at the FeKedge on the energy-dispersive beamline of the ESRF

Development of a low-pressure diamond anvil cell and analytical tools to monitor microbial activities in situ under controlled P and T

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