Results 121 to 130 of about 3,642 (259)

Smart Crack Control in Concrete through Use of Phase Change Materials (PCMs): A Review. [PDF]

Materials (Basel), 2018
Šavija B.
europepmc   +1 more source

Synthesis of Tris(indol‐3‐yl)methanes From Indoles, CO2, and Dimethylphenylsilane With BPh3: Two‐Step Construction of π‐Conjugated Systems

Chemistry – A European Journal, EarlyView.
Tris(indol‐3‐yl)methanes were synthesized from indoles, CO2, and PhMe2SiH in the presence of BPh3 in acetonitrile at 50°C. One product, tris(4‐bromo‐1‐methylindol‐3‐yl)methane, underwent a palladium‐catalyzed cascade reaction for the formation of a novel polycyclic heteroaromatic compound, where the methine C(sp3) atom originating from CO2 was ...
Sha Li, So Saibara, Reito Yasui, Kazuto Takaishi, Natsumi Nitta, Tadashi Ema   +5 more
wiley   +1 more source

Rhodium‐Catalyzed Synthesis of Enantioenriched α‐Substituted Primary Amines Through Asymmetric Transfer Hydrogenation

Chemistry – A European Journal, EarlyView.
Enantioenriched α‐substituted primary amines are efficiently prepared by rhodium‐catalyzed asymmetric transfer hydrogenation of ortho‐hydroxyaryl N─H imines under mild conditions using a low catalyst loading and ammonium formate as the hydrogen source in high yields (up to 99%) and enantioselectivities (up to 99% ee).
Chonghuo Liu, Guillaume Lefèvre, Qin Yin, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +4 more
wiley   +1 more source

A novel personal cooling system (PCS) incorporated with phase change materials (PCMs) and ventilation fans [PDF]

Extrem Physiol Med, 2015
Lu Y, Wei F, Lai D, Shi W, Wang F, Gao C.   +5 more
europepmc   +1 more source

β‐Ketonitrile‐Modified Prodan Derivatives as Large‐Stokes‐Shift Solvatochromic Fluorophores With Enhanced Brightness and Ratiometric Thermometric Response

Chemistry – A European Journal, EarlyView.
We report a systematic study of β‐ketonitrile–modified Prodan‐type solvatochromic fluorophores. The β‐ketonitrile substitution induces marked bathochromic shifts in absorption and emission and significantly enhances fluorescence quantum yields in nonpolar solvents.
Hiroaki Asakawa, Takuya Tanaka, Kensei Konishi, Gen‐ichi Konishi   +3 more
wiley   +1 more source

Transition Metal Compounds as Thermochromic Materials: Classification, Properties, Limitations, and Applications

EcoEnergy, EarlyView.
This review systematically examines how different transition metal compounds—such as binary and multinary metal oxides, halides, sulfides, and salts—exhibit thermochromism based on the d‐electron configurations of their transition metal cations. It focuses on three main mechanisms of thermochromism: phase transition, charge transfer, and bandgap change.
Jie Wang, Shan Wang, Long Yuan, Ling Zuo, Hui Qi, Changmin Hou   +5 more
wiley   +1 more source

Flexible Phase Change Bandage Incorporated With Zeolite for Temperature‐Controlled Wound Hemostasis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel flexible hemostatic phase change bandage (HPB) was designed and constructed through chemical cross‐linking and electrospinning to mitigate thermal injury and broaden the application of PCMs in the medical field. Furthermore, the flexible HPB shows thermal stability, strong mechanical strength, excellent infiltration, and reliable thermal ...
Xinyu Zhang, Keyan Sun, Hanqing Liu, Shihui Zhang, Yan Kou, Haocheng Fu, Zicheng Lu, Yongfei Zhao, Quan Shi   +8 more
wiley   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li, Jinsheng Sun, Kaihe Lv, Chaozheng Liu, Meichun Li   +4 more
wiley   +1 more source

Preparation of Expanded Graphite/Paraffin-Based Composite Phase Change Materials (PCMs) via Low-Temperature In Situ Synchronous Expansion. [PDF]

ACS Omega
Yang H, Zhang Y, Cui B, Li W, Zhao Q.
europepmc   +1 more source

Thermal Analysis of Cells Behavior in Modular Lithium Iron Phosphate Battery System in Urban Electric Bus Fleet

Energy Science &Engineering, EarlyView.
Real‐world analysis of lithium iron phosphate battery systems in electric buses shows minimal short‐term temperature impact on energy but significant long‐term degradation at higher temperatures. Efficient cooling and thermal uniformity are critical to prevent accelerated aging, maintain performance, and ensure safety under dynamic operating conditions.
Wiktoria Kaczmarek, Przemyslaw Galek, Dariusz Michalak, Leszek Kasprzyk, Anna Hanc   +4 more
wiley   +1 more source