| 23) | Tetra-n-butylammonium Tricarboxylate Semiclathrate Hydrates as Phase Change Materials: Phase Equilibrium Relations and Memory Effect in Reformation |
| K. Minamikawa, J. Shimada, T. Sugahara, T. Hirai Energy & Fuels, 39(14), 7104-7109 (2025). [DOI] |
|
| 22) | Transmission Electron Microscopy Imaging of Cluster Unit Dissolution from a Single Crystal of Tetra-n-butylammonium Fluoride Semiclathrate Hydrate for Latent-Heat Storage Material |
| H. Machida, T. Sugahara, H. Hata, T. Ueda, T. Yamazaki, Y. Kimura ACS Applied Nano Materials, 8(12), 5919-5925 (2025). [DOI] |
|
| 21) | Effect of Anions on the Memory Effect in the Tetra-n-butylammonium Dicarboxylate Semiclathrate Hydrate Reformation |
| K. Minamikawa, J. Shimada, T. Sugahara, T. Hirai Industrial & Engineering Chemistry Research, 63(43), 18435-18440 (2024). [DOI] |
|
| 20) | Isothermal Phase Equilibria of CH4+CO2 Mixed-Gas Hydrate System for CO2 Capture and Storage in a Reservoir after CH4 Hydrate Exploitation |
| R. Miyatake, T. Sugahara, T. Ishikawa, M. Oshima, Y. Jin, T. Hirai Journal of Chemical & Engineering Data, 69, 3210-3216 (2024). [DOI] |
|
| 19) | Effects of Halide Anions on the Electrical Conductivity in Single-Crystalline Tetra-n-butylammonium Salt Semiclathrate Hydrates |
| J. Shimada, T. Sugahara, A. Tani, T. Ueda, R. Tsugaya, K. Tsunashima, T. Hirai Energy & Fuels, 38, 6471-6477 (2024). [DOI] |
|
| 18) | Phase Behavior of Clathrate Hydrates Including Carbon Dioxide (written in Japanese) |
| T. Sugahara
Journal of the Japan Institute of Energy "Enermix", 103, 152-158 (2024). |
|
| 17) | Potential of Clathrate Hydrate as a Cold Storage Material (written in Japanese) |
| H. Machida, T. Sugahara
Journal of the Japan Institute of Energy "Enermix", 103, 173-178 (2024). |
|
| 16) | Dynamics of Water Molecules around Ions in the Crystalline Solids (written in Japanese) |
| J. Shimada, T. Sugahara, T. Hirai
Chemistry, 79(1), 33-36 (2024).
|
|
| 15) | Giant Adiabatic Temperature Change and Its Direct Measurement of a Barocaloric Effect in a Charge-Transfer Solid |
| S. Ohkoshi, K. Nakagawa, M. Yoshikiyo, A. Namai, K. Imoto, Y. Nagane, F. Jia, O. Stefanczyk, H. Tokoro, J. Wang, T. Sugahara, K. Chiba, K. Motodohi, K. Isogai, K. Nishioka, T. Momiki, R. Hatano
Nature Communications, 14, 8466 (2023). [DOI] |
|
| 14) | Separation of Propane and Propylene by Urea Clathrate Formation |
| R. Kobatake, T. Sugahara, T. Hirai
Industrial & Engineering Chemistry Research, 62, 21380-21384 (2023). [DOI] |
|
| 13) | Thermodynamic Properties of Tetra-n-butylammonium and Tetra-n-butylphosphonium Hydroxycarboxylate Semiclathrate Hydrates |
| K. Minamikawa, J. Shimada, T. Sugahara, T. Hirai
Journal of Chemical & Engineering Data, 68, 3492-3498 (2023). [DOI] |
|
| 12) | Quasi-Elastic Neutron Scattering Studies on Fast Dynamics of Water Molecules in Tetra-n-butylammonium Bromide Semiclathrate Hydrate |
| J. Shimada, A. Tani, T. Yamada, T. Sugahara, T. Hirai, T. Okuchi
Applied Physics Letters, 123(4), 044104-1-6 (2023). [DOI] |
|
| 11) | Proton Conduction in Tetra-n-butylammonium Bromide Semiclathrate Hydrate |
| J. Shimada, Y. Takaoka, T. Ueda, A. Tani, T. Sugahara, K. Tsunashima, H. Yamada, T. Hirai Solid State Ionics, 393, 116188-1-8 (2023). [DOI] |
|
| 10) | Peritectic Phase Behavior of Tetra-n-butylphosphonium Trifluoroacetate Semiclathrate Hydrate |
| J. Shimada, M. Shimada, S. Azuma, T. Sugahara, K. Tsunashima, T. Hirai Fluid Phase Equilibria, 567, 113727-1-5 (2023). [DOI] |
|
| 9) | Effect of Introducing a Cyclobutylmethyl Group to an Onium Cation on the Thermodynamic Properties of Ionic Clathrate Hydrate |
| S. Azuma, J. Shimada, K. Tsunashima, T. Sugahara, T. Hirai New Journal of Chemistry, 47(1), 231-237 (2023). [DOI] |
|
| 8) | Supercooling Suppression in the Tetrahydrofuran Clathrate Hydrate Formation |
| H. Machida, T. Sugahara, I. Hirasawa CrystEngComm, 24, 6730-6738 (2022) [DOI] |
|
| 7) | Equilibrium Phase Relations and Dissociation Enthalpies of Tri-n-butylalkenylphosphonium Bromide Semiclathrate Hydrates |
| S. Azuma, J. Shimada, K. Tsunashima, T. Sugahara, A. Tani, T. Hirai Journal of Chemical & Engineering Data, 67(6), 1415-1420 (2022) [DOI] |
|
| 6) | Pressure-Induced Evolution in Durability of Nickel-Metal Hydride Battery under High-Current Charge |
| K. Maeda, M. Moritoki, S. Yae, K. Fukui, N. Fukumoto, T. Sugahara Physical Chemistry Chemical Physics, 24, 14085-14091 (2022) [DOI] |
|
| 5) | Thermodynamic Properties of Tetra-n-butylphosphonium Dicarboxylate Semiclathrate Hydrates |
| J. Shimada, M. Yamada, A. Tani, T. Sugahara, K. Tsunashima, Y. Tsuchida, T. Hirai Journal of Chemical & Engineering Data, 67, 67-73 (2022). [DOI] |
|
| 4) | Hysteresis of Crystallization Derived from Residual Solution Structures after Semiclathrate Hydrate Decomposition(written in Japanese) |
| T. Sugahara, H. Machida Japanese J. Multiphase Flow, 35(4), 516-524 (2021). [DOI] |
|
| 3) | The moment of initial crystallization captured on functionalized nanoparticles |
| H. Machida, T. Sugahara, I. Hirasawa Communications Materials, 2, 66-1-7 (2021). [DOI] |
|
| 2) | Phase Equilibrium Temperature and Dissociation Enthalpy in the tri-n-Butylalkylphosphonium Bromide Semiclathrate Hydrate Systems |
| J. Shimada, M. Shimada, T. Sugahara, K. Tsunashima, Y. Takaoka, A. Tani Chemical Engineering Science, 236, 116514-1-8 (2021). [DOI] |
|
| 1) | Calorimetric and Small-Angle X-ray Scattering Studies on the Memory Effect in the Tetra-n-Butylammonium Bromide Semiclathrate Hydrate System |
| H. Machida, T. Sugahara, H. Masunaga, I. Hirasawa Journal of Crystal Growth, 533, 125476-1-6 (2020). [DOI] |
|
| The publications before 2020 are listed here. |