Article
Chemistry, Multidisciplinary
Nastaran Yousefi, Behrad Saeedi Saghez, Richard D. Pettipas, Timothy L. Kelly, Loren G. Kaake
Summary: The self-assembly of isotactic polypropylene films from supercritical n-pentane was studied in relation to solubility behavior, crystallinity, and morphology. It was found that pressure plays a significant role in deposition and crystalline structure, leading to a decrease in crystallinity under high pressure. A model of film growth was proposed to explain the observed phenomena involving pre-aggregation and turbulence effects.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Thermodynamics
Henri Hamalainen, Mika Ruusunen
Summary: In this study, a system model of supercritical carbon dioxide batch extraction process was developed through system identification. The model successfully simulated the energy consumption and dynamics of energy consumption of the extraction process under transient operating conditions. The models can be applied for real-time energy monitoring and optimization of supercritical extraction processes.
Article
Polymer Science
Xi Chen, Xiao Yang, Dong-Po Song, Yong-Feng Men, Yuesheng Li
Summary: Amphiphilic bottlebrush block copolymers stabilize emulsion droplets at the water/oil interface and enable the production of well-ordered porous structures with controlled pore size. This scalable method results in materials with full-spectrum structural colors and greatly reduced energy consumption.
Article
Chemistry, Analytical
Jin-Ling Zhang, Li-Ying Yao, Yang Yang, Wen-Bin Liang, Ruo Yuan, Dong-Rong Xiao
Summary: The study focuses on improving the electrochemiluminescence (ECL) performance of covalent organic frameworks (COFs) by enhancing conductivity and pre-reduction, and applying them to ultrasensitive biosensor detection systems.
ANALYTICAL CHEMISTRY
(2022)
Article
Thermodynamics
Shahid Ali Khan, Shakeel Ahmad, Kwun Ting Lau, Kejian Dong, Sihong He, Huaqiang Liu, Jiyun Zhao
Summary: For the first time, supercritical CO2 (sCO2) is examined as a working fluid in a unique thermal management strategy for battery cooling. The characteristics of high volumetric thermal capacity, low critical pressure and temperature in the pseudocritical region make sCO2 advantageous by reducing system complexity and costs, as well as eliminating critical heat flux and flow instabilities. Experimental results show that sCO2 exhibits superior temperature suppression and temperature differences compared to conventional coolants. This finding offers potential benefits for cooling large battery packs in high-power grid stations and energy storage systems.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Ashlee F. Harris, Jerome Lacombe, Sumedha Liyanage, Margaret Y. Han, Emily Wallace, Sophia Karsunky, Noureddine Abidi, Frederic Zenhausern
Summary: This study presents an alternative approach to plant decellularization using supercritical carbon dioxide (scCO(2)) that can effectively preserve plant microarchitecture and enable repopulation with human cells. Comparative analysis with chemically generated scaffolds showed that scCO(2) decellularized spinach leaf scaffolds exhibited similar mechanical properties and element composition but distinct biochemical signatures. Furthermore, human fibroblast cells seeded on the scCO(2) decellularized scaffolds demonstrated attachment and viability after 14 days, indicating excellent biocompatibility. The use of scCO(2) in this process was found to be more efficient, taking only 36 hours compared to the standard chemical approach which takes 170 hours.
SCIENTIFIC REPORTS
(2021)
Article
Green & Sustainable Science & Technology
Hafiz Aman Zaharil
Summary: The study compared the performance of different supercritical fluids in a parabolic trough solar collector, with water showing the best energetic performance and sSF(6) performing weaker than the rest. All fluids showed optimal exergetic efficiency at 750K inlet temperature, with H2O being the best for thermal storage at 650K.
Article
Nanoscience & Nanotechnology
Minghao Xie, Min Shen, Ruhui Chen, Younan Xia
Summary: In this study, Pt-Ni nanocrystals with controlled shapes and compositions were synthesized to investigate the impact of Ni content on the formation of {111} facets and ORR activity. By excluding O-2 completely, a linear relationship was achieved between the atomic ratio of Pt to Ni in the nanocrystals and the feeding ratio of the precursors. The specific ORR activities of octahedral nanocrystals exhibited a positive correlation with the Pt/Ni atomic ratio, with a peak value at a Pt/Ni atomic ratio of 1.6 after the accelerated durability test.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
R. Santhosh, S. Harish, R. Abinaya, S. Ponnusamy, H. Ikeda, J. Archana, M. Navaneethan
Summary: In this study, Ag-deficient Ag2Se was prepared using a hydrothermal method and hot-press densification process, and the effect on thermoelectric properties was investigated. The research found that increasing the Ag content led to an increase in the calculated density of states effective mass (m*), resulting in an enhanced maximum zT of 0.43 at 393 K for Ag1.99Se. Furthermore, the complex nanostructures including grain boundaries, nanograins, and lattice distortions in Ag2-xSe contributed to reduced thermal conductivity (kappa) in the range of 0.9-1.1 W m(-1) K-1 at 303 K. The aim was to improve the thermoelectric performance of Ag2-xSe for room temperature applications.
Article
Chemistry, Physical
Abdelazim M. Mebed, Alaa M. Abd-Elnaiem, Alhulw H. Alshammari, Taha A. Taha, Mohamed Rashad, Dalia Hamad
Summary: In this study, PbO-x wt% Al2O3 nanocomposites were prepared and characterized. The results showed that the composites had smaller crystallite sizes when the Al2O3 ratio was 40 wt%. The optical bandgap decreased and the intensity of photoluminescence emission increased with increasing PbO ratio. The PbO-30% Al2O3 and PbO-40% Al2O3 composites exhibited the best catalytic performance.
Article
Polymer Science
Guang-Zhong Yin, Alba Marta Lopez, Xiao-Mei Yang, Wen Ye, Baoyun Xu, Jose Hobson, De-Yi Wang
Summary: With the advancement of intelligent electronic devices and the widespread use of flexible and foldable devices, as well as high-speed/ large capacity 5G communication, there is an increasing demand in the market for flexible heat storage and smart temperature control materials. This study focuses on the development of pentaerythritol phosphate modified sustainable polyrotaxane as phase change materials (PCMs) for thermal energy storage and thermal management. The results show that the modified polyrotaxanes exhibit enhanced flexibility, fire safety, and thermal conductivity compared to the pristine polyrotaxane, making them promising sustainable and fire safe shape-stable PCMs for thermal energy storage.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Engineering, Environmental
Yangfei Gao, Xiaopei Zhu, Bian Yang, Peng Shi, Ruirui Kang, Ye Yuan, Qida Liu, Ming Wu, Jinghui Gao, Xiaojie Lou
Summary: A new type of lead-free ceramics with excellent energy storage performance was successfully prepared by controlling the grain size and doping of impurities, providing new possibilities for practical applications of ferroelectric ceramics in energy storage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Takaaki Tomai, Liangyu Tang, Akira Yoko, Yuki Omura, Gimyeong Seong, Tadafumi Adschiri
Summary: The study introduces a method for regenerating degraded facet-controlled nanoparticle catalysts through the dissolution-reprecipitation process and surface crystalline structure reorientation using an organic modifier. The modifier stabilizes the (100) facet, accelerates the dissolution-reprecipitation process, and promotes facet modification and catalyst regeneration.
CHEMISTRY OF MATERIALS
(2021)
Article
Polymer Science
Yuxuan Zhu, Qiwen Liu, Ruizhi Zhang, Peng Cao, Guoqiang Luo, Huan Yuan, Jian Zhang, Yi Sun, Qiang Shen
Summary: In this article, a multibubble growth model of polymethyl-methacrylate (PMMA) is established based on supercritical fluid foaming method and fluid simulation. The effects of foaming conditions on the cell structures of PMMA foams are analyzed and predicted.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Chemical
Jeremy Mantingh, Anton A. Kiss
Summary: This study proposed novel enhancements to the 1,3-butadiene production process, including modifications to the ED part with intermediate heating and replacing classic columns with a heat pump assisted DWC. Rigorous simulations in Aspen Plus showed that these enhancements significantly reduced energy intensity and total costs of the process, with a payback time of 1 year.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Quyen T. Nguyen, Phuc D. Nguyen, Duc N. Nguyen, Quang Duc Truong, Tran Thi Kim Chi, Thuy Thi Dieu Ung, Itaru Honma, Nguyen Quang Liem, Phong D. Tran
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Multidisciplinary
Tien D. Tran, Mai T. T. Nguyen, Hoang V. Le, Duc N. Nguyen, Quang Duc Truong, Phong D. Tran
CHEMICAL COMMUNICATIONS
(2018)
Article
Chemistry, Multidisciplinary
Linh N. Nguyen, Ung Thi Dieu Thuy, Quang Duc Truong, Itaru Honma, Quang Liem Nguyen, Phong D. Tran
CHEMISTRY-AN ASIAN JOURNAL
(2018)
Article
Chemistry, Analytical
Thi Hang Le, Thanh Son Le, Luong Xuan Dien, Dai-Viet N. Vo, Quang Duc Truong
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2018)
Article
Materials Science, Multidisciplinary
Gunasekaran Venugopal, Yuvaraj Sivalingam, Karthikeyan Krishnamoorthy, V. J. Y. Surya, M. K. Devaraju, Sang-Jae Kim
MATERIALS CHEMISTRY AND PHYSICS
(2018)
Article
Chemistry, Applied
Tan Ji Siang, Thong L. M. Pham, Nguyen Van Cuong, Pham T. T. Phuong, Nguyen Huu Huy Phuc, Quang Duc Truong, Dai-Viet N. Vo
MICROPOROUS AND MESOPOROUS MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Quang Duc Truong, Nguyen Tuan Hung, Yuta Nakayasu, Keiichiro Nayuki, Yoshikazu Sasaki, Devaraju Murukanahally Kempaiah, Li-Chang Yin, Takaaki Tomai, Riichiro Saito, Itaru Honma
Article
Electrochemistry
Atsushi Unemoto, Suguru Ueda, Eiji Seki, Masanari Oda, Jun Kawaji, Takefumi Okumura, Yoshiyuki Gambe, Itaru Honma
Article
Chemistry, Applied
Stalin Joseph, Devaraju M. Kempaiah, Mercy R. Benzigar, Hamid Ilbeyg, Gurwinder Singh, Siddulu Naidu Talapaneni, Dae-Hwan Park, Ajayan Vinu
MICROPOROUS AND MESOPOROUS MATERIALS
(2019)
Article
Chemistry, Physical
Quang Duc Truong, Yuta Nakayasu, Quyen T. Nguyen, Duc N. Nguyen, Chuc T. Nguyen, Murukanahally Kempaiah Devaraju, Dinesh Rangappa, Keiichiro Nayuki, Yoshikazu Sasaki, Phong D. Tran, Takaaki Tomai, Itaru Honma
APPLIED SURFACE SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Quang Duc Truong, Thanh Son Le, Thu H. Hoa
Article
Chemistry, Inorganic & Nuclear
Olusola Olaitan Ayeleru, Sisanda Dlova, Ojo Jeremiah Akinribide, Oluwasayo F. Olorundare, Rokhsareh Akbarzadeh, Devaraju Murukanahally Kempaiah, Colin Hall, Freeman Ntuli, Williams Kehinde Kupolati, Peter Apata Olubambi
INORGANIC CHEMISTRY COMMUNICATIONS
(2020)
Article
Chemistry, Physical
Minh Tuan Nguyen Dinh, Chinh Chien Nguyen, Tan Linh Truong Vu, Van Thinh Ho, Quang Duc Truong
APPLIED CATALYSIS A-GENERAL
(2020)
Article
Chemistry, Physical
Luong Xuan Dien, Quang Duc Truong, Toru Murayama, Huynh Dang Chinh, Ayako Taketoshi, Itaru Honma, Masatake Haruta, Tamao Ishida
APPLIED CATALYSIS A-GENERAL
(2020)
Article
Chemistry, Multidisciplinary
Quang Duc Truong, Hiroaki Kobayashi, Itaru Honma