High-Pressure Studies of Trimethylsilane Azide by Raman Scattering and Synchrotron X–ray Diffraction

Yang, Wen; Zuzhen, Shang; Jiang, Junru; Zhu, Hongyang; Hou, Xinmei; Zhang, He; Zhang, Jian; Cui, Qiliang

doi:10.1021/acs.jpcb.1c08492

Cited by 5 publications

(2 citation statements)

References 33 publications

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“…600 and 820 cm −1 , which are assigned to Si-CH 3 vibration, in their Raman and IR spectra, respectively. [49,50] For TMS-SH and TMS-OH, the supernatant solutions retrieved after the centrifuge, denoted as after adsorption in Figure 1, showed significant decreases in intensity of these peaks compared to the pristine solutions. This reveals that the concentrations of TMS-SH and TMS-OH in the retrieved solutions decreased compared to the pristine solutions because significant amounts of TMS-SH and TMS-OH were adsorbed on the LPSCl surface.…”

Section: Synthesis Of Lpscl With Solid Electrolyte Additivesmentioning

confidence: 99%

Trimethylsilyl Compounds for the Interfacial Stabilization of Thiophosphate‐Based Solid Electrolytes in All‐Solid‐State Batteries

Kim,

Song

et al. 2023

Advanced Science

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Argyrodite‐type Li6PS5Cl (LPSCl) has attracted much attention as a solid electrolyte for all‐solid‐state batteries (ASSBs) because of its high ionic conductivity and good mechanical flexibility. LPSCl, however, has challenges of translating research into practical applications, such as irreversible electrochemical degradation at the interface between LPSCl and cathode materials. Even for Li‐ion batteries (LIBs), liquid electrolytes have the same issue as electrolyte decomposition due to interfacial instability. Nonetheless, current LIBs are successfully commercialized because functional electrolyte additives give rise to the formation of stable cathode‐electrolyte interphase (CEI) and solid‐electrolyte interphase (SEI) layers, leading to supplementing the interfacial stability between electrolyte and electrode. Herein, inspired by the role of electrolyte additives for LIBs, trimethylsilyl compounds are introduced as solid electrolyte additives for improving the interfacial stability between sulfide‐based solid electrolytes and cathode materials. 2‐(Trimethylsilyl)ethanethiol (TMS‐SH), a solid electrolyte additive, is oxidatively decomposed during charge, forming a stable CEI layer. As a result, the CEI layer derived from TMS‐SH suppresses the interfacial degradation between LPSCl and LiCoO2, thereby leading to the excellent electrochemical performance of Li | LPSCl | LiCoO2, such as superior cycle life over 2000 cycles (85.0% of capacity retention after 2000 cycles).

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Section: Synthesis Of Lpscl With Solid Electrolyte Additivesmentioning

confidence: 99%

Trimethylsilyl Compounds for the Interfacial Stabilization of Thiophosphate‐Based Solid Electrolytes in All‐Solid‐State Batteries

Kim,

Song

et al. 2023

Advanced Science

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“…Most of the studies are mainly about the synthesis of azole-containing energetic coordination complexes, and few studies on the structure and properties of azole-containing energetic coordination complexes under high pressure have been reported. [13][14][15][16][17][18][19] However, high-pressure studies of azolecontaining energetic coordination complexes have many physical problems which need to be further explored, for example, the effect of azole ring on the structure of coordination complexes, the high-pressure behavior of energetic ligand, and the variations of intermolecular interactions in coordination complexes under high pressure.…”

Section: Introductionmentioning

confidence: 99%

High‐pressure studies of Mn₂(C₂H₆N₆)₄(NO₃)₄·2H₂O by Raman scattering, infrared absorption, and synchrotron X‐ray diffraction

Ding,

Zhang,

et al. 2024

J Raman Spectroscopy

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Mn2(C2H6N6)4(NO3)4·2H2O (Mn) as one of the energetic coordination complexes was chosen for high‐pressure research. In this work, Mn was analyzed by in situ Raman scattering, infrared absorption, and synchrotron angle‐dispersive X‐ray diffraction (ADXRD) technologies up to ~20 GPa at room temperature. The vibrational modes of Mn at ambient pressure were comprehensively resolved based on the experimental results. Detailed spectral analyses revealed that Mn underwent three pressure‐induced phase transitions at 0.5, 2.5, and 5.7 GPa, respectively. ADXRD experiments confirmed the existence of these three phase transitions in Raman and infrared spectra analyses. Based on the analysis of the vibrational spectra and the changes of lattice parameters under pressure, it can be considered that the deformation of the 3‐hydrazino‐4‐amino‐1, 2, 4‐triazole (HATr) ligand led to the first phase transition, and the distortion of the triazole ring induced the second phase transition, and the rearrangement of the hydrogen bonds resulted in the third phase transition. In addition, it can be inferred from Raman spectra and ADXRD data that Mn may have experienced the abnormal expansion during the first phase transition. This work may lay the foundation for further investigating the structure and properties of energetic coordination complexes under pressure.

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Raman spectroscopy and X‐ray diffraction of diphenylphosphoryl azide under high pressures

Yang

Huili

et al. 2022

J Raman Spectroscopy

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Diphenylphosphoryl azide ((C6H5O)2P(O)N3, DPPA) was studied by in situ Raman scattering spectroscopy and synchrotron angle‐dispersive X‐ray diffraction (ADXRD) technologies up to 11.6 GPa at room temperature. The analyses of Raman spectra revealed that the liquid DPPA transformed from Phase I to Phase II at 0.4 GPa and went to Phase III at 1.3 GPa. The first phase transition was attributed to the change of molecular conformation, and the second phase transition was induced by the deformation of benzene rings. The XRD results suggested that DPPA remained in a liquid state during the two phase transitions. The azide group became increasingly asymmetric under pressure and decomposed at 11.6 GPa. The low decomposition pressure of the azide group is conducive to the formation of polymeric nitrogen. Exploring the behaviors of the azide group under pressure might be helpful for understanding the potential application of DPPA in the synthesis of high energy density materials (HEDMs).

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High-Pressure Studies of Trimethylsilane Azide by Raman Scattering and Synchrotron X–ray Diffraction

Cited by 5 publications

References 33 publications

Trimethylsilyl Compounds for the Interfacial Stabilization of Thiophosphate‐Based Solid Electrolytes in All‐Solid‐State Batteries

Trimethylsilyl Compounds for the Interfacial Stabilization of Thiophosphate‐Based Solid Electrolytes in All‐Solid‐State Batteries

High‐pressure studies of Mn₂(C₂H₆N₆)₄(NO₃)₄·2H₂O by Raman scattering, infrared absorption, and synchrotron X‐ray diffraction

Raman spectroscopy and X‐ray diffraction of diphenylphosphoryl azide under high pressures

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High-Pressure Studies of Trimethylsilane Azide by Raman Scattering and Synchrotron X–ray Diffraction

Cited by 5 publications

References 33 publications

Trimethylsilyl Compounds for the Interfacial Stabilization of Thiophosphate‐Based Solid Electrolytes in All‐Solid‐State Batteries

Trimethylsilyl Compounds for the Interfacial Stabilization of Thiophosphate‐Based Solid Electrolytes in All‐Solid‐State Batteries

High‐pressure studies of Mn2(C2H6N6)4(NO3)4·2H2O by Raman scattering, infrared absorption, and synchrotron X‐ray diffraction

Raman spectroscopy and X‐ray diffraction of diphenylphosphoryl azide under high pressures

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Resources

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High‐pressure studies of Mn₂(C₂H₆N₆)₄(NO₃)₄·2H₂O by Raman scattering, infrared absorption, and synchrotron X‐ray diffraction