Results 91 to 100 of about 24,143 (264)

Exothermic contributions in the DSC signal of endothermic effects

Journal of Thermal Analysis and Calorimetry
Abstract The understanding, qualitative interpretation and quantitative evaluation of differential scanning calorimetry (DSC) curves is not always an easy task, e.g., due to asymmetric shape of the peak, overlapping effects, etc. Recently, the asymmetry of some endothermic DSC peaks was attributed to the existence of exothermic contributions ...
openaire   +1 more source

Cascade‐Responsive MXene@Cu‐MOF Heterostructure Integrates Antioxidant Activity, Infection Control, and Vascularization for Tracheal Repair

Advanced Science, EarlyView.
A cascade‐responsive MXene@Cu‐MOF/GelMA hydrogel is engineered as a “skeleton–backpack” platform for extensive tracheal repair. The MXene framework scavenges postoperative ROS and converts NIR light into mild hyperthermia, while the Cu‐MOF component provides pH/NIR‐responsive Cu2+ dosing for infection control, angiogenesis, and chondrogenesis.
Liang Guo, Yingran Shen, Jiaoyu Yi, Juanjuan Li, Ziming Wang, Erji Gao, Siqiang Zheng, Zhe‐Sheng Chen, Bo Tao   +8 more
wiley   +1 more source

Hierarchical MXene/ZnO Nanorods: WO3/CNT Trilayer Coatings on Cotton for High‐Performance Multifunctional Wearable Fabrics

Advanced Science, EarlyView.
xx xx. ABSTRACT Fabric‐based wearable electronics are gaining increasing attention owing to their flexibility, breathability, biocompatibility, and seamless integration into clothing. However, most existing studies rely primarily on metallic or carbon‐based conductive materials.
Thirumalaisamy Suryaprabha, Chunghyeon Choi, Sujith Lal, Min‐Young Seo, Tae‐Wook Kim, Ergang Wang, Byungil Hwang   +6 more
wiley   +1 more source

Co-Pyrolysis Behavior of Energetic Materials and Pine Sawdust

Energies
Incineration is a widely adopted method for the disposal of waste energetic materials (SP). Nevertheless, this approach is associated with considerable thermal energy loss and significant environmental pollution.
Cui Quan, Yufen Wang, Ningbo Gao
doaj   +1 more source

Liquid Bismuth Catalyst Enables High‐CO‐Selectivity in CO2 Hydrogenation

Advanced Science, EarlyView.
This work introduces a dynamic liquid bismuth catalyst for efficient CO2‐to‐syngas conversion. Stabilized molten Bi nanodroplets on a defective VOx support enable a reversible Bi3+/Bi0 redox cycle at moderate temperatures. Mechanistic insights reveal that Ni‐Bi dual sites synergistically activate H2 and cleave CO2, leading to high CO selectivity ...
Xinxin Lu, Zun Guan, Xinyi Fu, Bin Chen, Zhongliang Huang, Riguang Zhang, Guowu Zhan   +6 more
wiley   +1 more source

Evaluation of Gpyros Capabilities to Simulate Exothermal Effects in Mineral Wool

, 2014
When mineral wool is heated to fire temperatures, heat is developed inside the material. Experiments have shown that although the mineral wool is externally heated, the temperatures inside the material rises well above the temperatures registered on the surface of the material. This phenomenon is a result of two exothermal reactions taking place in the
openaire   +2 more sources

Rapid Steam‐Assisted Temperature Swing Adsorption for Direct Air Capture Using a Rotary Adsorber

Advanced Science, EarlyView.
This study presents a direct air capture (DAC) device based on a steam‐regeneration rotary adsorber for high‐purity CO2. Testing of the prototype demonstrates its capability for continuous and stable carbon capture with the potential to achieve ton‐scale.
Junye Wu, Yunhao Chen, Kuihua Wang, Yingjie Huo, Yanlin Chen, Quanwen Pan, Tianshu Ge   +6 more
wiley   +1 more source

Pt Single‐Atom Activates Surface Lattice Oxygen for Enhanced Acetone Detection Mediated by the MvK Mechanism

Advanced Science, EarlyView.
A Pt single‐atom‐loaded CuO sensing material is developed for acetone detection, demonstrating remarkably enhanced sensing performance. The introduction of Pt single atoms effectively activates the lattice oxygen of the CuO support. A new sensing mechanism based on the Mars‐van Krevelen catalytic mechanism is proposed, offering new insights into the ...
Liang Zhao, Hongda Zhang, Yunpeng Xing, Chengchao Yu, Sihao Zhi, Teng Fei, Sen Liu, Haiyan Zhang, Tong Zhang   +8 more
wiley   +1 more source

Synergistic Hydrogen‐Bonding and Covalent Crosslinking in Polybenzimidazole Membranes for Wide‐Temperature Anhydrous Fuel Cells

Advanced Science, EarlyView.
A dual‐network architecture combining a thermally reinforced hydrogen‐bonding matrix with an amine‐anhydride covalent framework was constructed in Tröger's Base (TB)‐functionalized polybenzimidazoles. This design yielded the TBAm‐PBI‐TB membrane with high acid uptake (469.5%), anhydrous conductivity (264.7 mS cm−1), and robust stability.
Junming Dai, Jianming Zhong, Jinpeng Luo, Yuxing Song, Fan Hu, Young Moo Lee, Yongbing Zhuang   +6 more
wiley   +1 more source

Interfacial Engineering in Rare‐Earth Oxide/ZnO Heterojunctions for High‐Performance Trimethylamine Sensing and Fish Freshness Monitoring

Advanced Science, EarlyView.
This study realizes superior gas sensing performance via Yb2O3/ZnO heterojunction design, achieving highly sensitive/selective trimethylamine detection at room temperature while elucidating the intrinsic sensing mechanism. This innovation is applied to reliable real‐time fish freshness monitoring, paving a feasible way for translating advanced material
Junxi Cheng, Chang Liu, Miaomiao Liu, Qihua Sun, Jun Sun, Zhaofeng Wu   +5 more
wiley   +1 more source