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Bhatt H, Verma AK, Modak P. Polyether phases of formic acid revealed under high pressure. Chem Commun (Camb) 2023; 59:9888-9891. [PMID: 37493352 DOI: 10.1039/d3cc02129g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Evolutionary structure searches reveal that at 20 GPa, formic acid (FA) transforms to an orthorhombic ether-chain polymer phase, ruling out hydrogen bond symmetrization, followed by a novel crowned cyclic-ether tetragonal phase above 60 GPa. Emergence of characteristic polyether and new OH stretching modes in infrared experiments validate the findings. Resemblance of polymer chain with a cosmopolymer polyoxymethylene, shows an engrossing multifaceted evolution of FA.
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Affiliation(s)
- Himal Bhatt
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Ashok K Verma
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - P Modak
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
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Tronci S, Garau D, Stateva RP, Cholakov G, Wakeham WA, Errico M. Analysis of hybrid separation schemes for levulinic acid separation by process intensification and assessment of thermophysical properties impact. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Reddyhoff T, Ewen JP, Deshpande P, Frogley MD, Welch MD, Montgomery W. Macroscale Superlubricity and Polymorphism of Long-Chain n-Alcohols. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9239-9251. [PMID: 33565870 DOI: 10.1021/acsami.0c21918] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Simple n-alcohols, such as 1-dodecanol, show anomalous film-forming and friction behaviors under elastohydrodynamic lubrication (EHL) conditions, as found inside bearings and gears. Using tribometer, diamond anvil cell (DAC), and differential scanning calorimetry (DSC) experiments, we show that liquid 1-dodecanol undergoes a pressure-induced solidification when entrained into EHL contacts. Different solid polymorphs are formed inside the contact depending on the temperature and pressure conditions. Surprisingly, at a moderate temperature and pressure, 1-dodecanol forms a polymorph that exhibits robust macroscale superlubricity. The DAC and DSC experiments show that superlubricity is facilitated by the formation of lamellar, hydrogen-bonded structures of hexagonally close-packed molecules, which promote interlayer sliding. This novel superlubricity mechanism is similar to that proposed for the two-dimensional materials commonly employed as solid lubricants, but it also enables the practical advantages of liquid lubricants to be maintained. When the pressure is increased, 1-dodecanol undergoes a polymorphic transformation into a phase that gives a higher friction. The DAC and DSC experiments indicate that the high-friction polymorph is an orthorhombic crystal. The polymorphic transformation pressure coincides with the onset of a dimple formation in the EHL films, revealing that the anomalous film shapes are caused by the formation of rigid orthorhombic crystals inside the contact. This is the first demonstration of a macroscale superlubricity in an EHL contact lubricated by a nonaqueous liquid that arises from bulk effects rather than tribochemical transformations at the surfaces. Since the superlubricity observed here results from phase transformations, it is continuously self-replenishing and is insensitive to surface chemistry and topology. This discovery creates the possibility of implementing superlubricity in a wide range of machine components, which would result in enormous improvements in efficiency and durability.
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Affiliation(s)
- Tom Reddyhoff
- Department of Mechanical Engineering, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| | - James P Ewen
- Department of Mechanical Engineering, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| | - Pushkar Deshpande
- Department of Mechanical Engineering, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| | - Mark D Frogley
- Soft Condensed Matter Group, Diamond Light Source, Diamond House, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Mark D Welch
- Department of Earth Sciences, The Natural History Museum, Cromwell Road, South Kensington, London SW7 5BD, United Kingdom
| | - Wren Montgomery
- Department of Earth Science and Engineering, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
- Imaging and Analysis Centre, The Natural History Museum, Cromwell Road, South Kensington, London SW7 5BD, United Kingdom
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Rice BM, Byrd EFC. Theoretical Study of Shocked Formic Acid: Born–Oppenheimer MD Calculations of the Shock Hugoniot and Early-Stage Chemistry. J Phys Chem B 2015; 120:1711-9. [DOI: 10.1021/acs.jpcb.5b08845] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Betsy M. Rice
- U.S. Army Research Laboratory (ARL), Aberdeen Proving Ground, Aberdeen 21005, Maryland, United States
| | - Edward F. C. Byrd
- U.S. Army Research Laboratory (ARL), Aberdeen Proving Ground, Aberdeen 21005, Maryland, United States
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Manner VW, Chellappa RS, Sheffield SA, Liu Z, Dattelbaum DM. High-pressure far-infrared spectroscopic studies of hydrogen bonding in formic acid. APPLIED SPECTROSCOPY 2013; 67:1080-1086. [PMID: 24067640 DOI: 10.1366/13-07040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Simple molecules such as HCOOH, or formic acid, are suggested to have played important roles in planetary physics due to their possibility for high pressure and temperature chemistry under impact conditions. In this study, we have investigated the effect of pressure (up to 50 GPa) on H-bonding and reactivity of formic acid using synchrotron far infrared spectroscopy. Based on the pressure-induced changes to H-bond ν(O-H···O) stretching and γ(O-H···O) deformations, we observe significant reorganization of H-bonding network beginning at ~20 GPa. This is in good agreement with reports of symmetrization of H-bonds reported at 16-21 GPa from X-ray diffraction and Raman spectroscopy studies as well as molecular dynamics simulations. With further increase in pressure, beyond 35 GPa, formic acid undergoes a polymerization process that is complete beyond 45 GPa. Remarkably, upon decompression, the polymeric phase reverts to the crystalline high-pressure phase at 8 GPa.
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Ganbold EO, Lee Y, Lee K, Kwon O, Joo SW. Interfacial Behavior of Benzoic Acid and Phenylphosphonic Acid on Nanocrystalline TiO2Surfaces. Chem Asian J 2010; 5:852-8. [DOI: 10.1002/asia.200900414] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Dembereldorj U, Joo SW. Infrared Spectroscopic Study of α-Cyano-4-hydroxycinnamic Acid on Nanocrystalline TiO2Surfaces: Anchoring of Metal-Free Organic Dyes at Photoanodes in Dye-Sensitized Solar Cells. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.01.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Glascoe EA, Zaug JM, Burnham AK. Pressure-Dependent Decomposition Kinetics of the Energetic Material HMX up to 3.6 GPa. J Phys Chem A 2009; 113:13548-55. [DOI: 10.1021/jp905276k] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elizabeth A. Glascoe
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
| | - Joseph M. Zaug
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
| | - Alan K. Burnham
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
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Glascoe EA, Zaug JM, Armstrong MR, Crowhurst JC, Grant CD, Fried LE. Nanosecond Time-Resolved and Steady-State Infrared Studies of Photoinduced Decomposition of TATB at Ambient and Elevated Pressure. J Phys Chem A 2009; 113:5881-7. [DOI: 10.1021/jp809418a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elizabeth A. Glascoe
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
| | - Joseph M. Zaug
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
| | - Michael R. Armstrong
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
| | - Jonathan C. Crowhurst
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
| | - Christian D. Grant
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
| | - Laurence E. Fried
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551
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Smith RL, Fang Z. Techniques, applications and future prospects of diamond anvil cells for studying supercritical water systems. J Supercrit Fluids 2009. [DOI: 10.1016/j.supflu.2008.10.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Montgomery W, Crowhurst JC, Zaug JM, Jeanloz R. The Chemistry of Cyanuric Acid (H3C3N3O3) under High Pressure and High Temperature. J Phys Chem B 2008; 112:2644-8. [DOI: 10.1021/jp073589y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- W. Montgomery
- Department of Earth & Planetary Science, University of California, Berkeley, 307 McCone Hall, Berkeley, California 94720-4767
| | - J. C. Crowhurst
- Lawrence Livermore National Laboratory, Chemistry, Materials and Life Sciences Directorate, 7000 East Avenue, Livermore, California 94551
| | - J. M. Zaug
- Lawrence Livermore National Laboratory, Chemistry, Materials and Life Sciences Directorate, 7000 East Avenue, Livermore, California 94551
| | - R. Jeanloz
- Department of Earth & Planetary Science, University of California, Berkeley, 307 McCone Hall, Berkeley, California 94720-4767
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