Results 81 to 90 of about 2,584,295 (232)

Supercapacitor Safety: Overcharge‐Induced Failure Mechanisms in Electrochemical Double‐Layer Capacitors

Advanced Science, EarlyView.
Time‐resolved synchrotron radiography reveals the internal evolution of electrochemical double‐layer capacitors under abusive overcharge. EDLCs are shown to follow a thermally driven failure pathway involving electrolyte decomposition, gas generation, and structural collapse, distinct from chemically driven thermal runaway effects of Lithium‐ion ...
Thomas Dore, Inez Kesuma, Abdus S. Ali, Jonas Pfaff, Yuxiao Jin, Rosalie Hamill, Mark Buckwell, Hamish Reid, Thomas Finco, Zeyu Sun, Yuanze Li, Sebastian Schopferer, Siegfried Nau, Nils Böttcher, Henning Markötter, Alexander J. E. Rettie, James Robinson, Paul R. Shearing, Alexander Rack, Thomas S. Miller   +19 more
wiley   +1 more source

Dynamic evolution of microscopic active structures and parallel reaction mechanisms of coal spontaneous combustion

Meitan xuebao
Coal spontaneous combustion results from synergistic heat release and accumulation through multi-step parallel reactions, with its exothermic characteristics closely related to the evolution of microactive structures.
Kai WANG, Quanfang LI, Jun DENG, Xin LI
doaj   +1 more source

Preserving Safety and Improving Yield Performances in Methanol Processes

Chemical Engineering Transactions, 2012
The industrial best practice for methanol synthesis is the use a fixed-bed tubular reactor. The exothermic nature of methanol synthesis, the possibility to activate the methanation reaction (intensely exothermic) and the discrete nature of temperature ...
Z. Ravaghi Ardebili, F. Manenti, N.M. Nascimento Lima, L. Zuniga Linan, S. Cieri, M. Restelli, G. Bozzano   +6 more
doaj   +1 more source

Deposition Rate‐Controlled Functional Evolution of p‐Type Selenium‐Alloyed Tellurium–Tellurium Oxide Films for Thin‐Film Transistors

Advanced Science, EarlyView.
This study investigates the effects of thermal deposition rate on next‐generation p‐type amorphous oxide semiconductor SeTe–TeOx films. Deposition rate governs the chemical states, microstructure, and electrical characteristics of the films, resulting in tunable device properties.
Seongmo Kang, Jeong‐Min Seo, Hyungyu Choi, Yunseo Song, Tae Woong Yoon, Tae Woong Han, Hoseong Shin, Jiyun Lee, Boseok Kang   +8 more
wiley   +1 more source

Adiabatic Thermal Study of Butanol and Its Derivatives as Possible Component of Red Oil With Nitric Acid in Post-Treatment

He huaxue yu fangshe huaxue
The exothermic behaviors of butanol, butyraldehyde, butanone, and butyric acid with nitric acid were studied by adiabatic accelerating rate calorimeter(ARC), and the test results were compared and analyzed, and the system risk was evaluated by THI index ...
XU Xiao-qin, LIU Wei, YU Yong-bin, WU Rui-cai, TANG Shuang-ling   +4 more
doaj   +1 more source

Synthesis of tin sulfide using high exothermic reaction

Because of very important compounds such as tin sulfide, tin is critical metal for green economy. SnS applications are mostly used in optoelectronic devices (photovoltaics), lithium- and sodium-ion batteries, and sensors among others with a significant ...
Friedrich, Bernd, Stopić, Srećko, Jovanović, Dejan, Stamatović, Mirko, Anđić, Dimitrije   +4 more
core   +1 more source

Greener Solvents for the Photoisomerization and Catalytic Heat Release of a Norbornadiene‐Based Molecular Solar Thermal Energy Storage System

Advanced Science, EarlyView.
A Molecular Solar Thermal (MOST) system combining a scalable norbornadiene–quadricyclane photoswitch, a biodegradable solvent, propylene carbonate, and noble and first‐row metal catalysts, is presented. Propylene carbonate boosts photoisomerization quantum yield by 25% compared to toluene, prolongs energy storage by an additional 15 days, and enables ...
Lucien Magson, Helen Hölzel, Rebecca J. Salthouse, Liang Fei, Pedro Ferreira, Vitor A. S. Almodovar, Kasper Moth‐Poulsen, Ignacio Funes‐Ardoiz, Diego Sampedro   +8 more
wiley   +1 more source

Synergistic Effects in Multistate Black Electro‐Thermochromic Smart Windows for Energy‐Efficient Modulation of Solar Heating

Advanced Science, EarlyView.
Hybrid electro‐thermochromic smart windows are developed for dynamic climate control by integrating a redox‐matched black electrochromic gel with a paraffin‐based thermochromic film. This synergistic combination enables multimodal solar modulation, where photothermal heating from the electrochromic layer triggers thermochromic activation at lower ...
Xilu Wu, Lorenzo Vallan, Hao Li, Jaume Ramon Otaegui, Silvia Mena, Weizhong Jiang, Hongzhi Wang, Jonathan C. Barnes, Daniel Ruiz‐Molina, Kerui Li, Jordi Hernando, Claudio Roscini, Gonzalo Guirado   +12 more
wiley   +1 more source

In-operando high-speed microscopy and thermometry of reaction propagation and sintering in a nanocomposite

Nature Communications, 2019
Imaging highly exothermic reactions in high spatial and temporal resolution to understand their underlying reaction mechanisms is challenging. Here, the authors develop a high-speed microscopy/pyrometry imaging system to successfully observe reactive ...
Haiyang Wang, Dylan J. Kline, Michael R. Zachariah   +2 more
doaj   +1 more source

Self‐Healing UPy‐Functionalized Polyethylene Networks: A Robust Platform for Resilient and High‐Performance Lithium Battery Separators

Advanced Science, EarlyView.
Self‐healing separators are developed by grafting ureidopyrimidinone (UPy) quadruple hydrogen‐bonding motifs onto PE‐HEMA copolymers, blended with high‐MW PEO via solvent‐free hot‐pressing. The dynamic UPy network enables autonomous healing, restoring functionality after short circuits.
Daniele Callegari, Arkadiusz Zych, Roberta Pinalli, Enrico Dalcanale, Eliana Quartarone   +4 more
wiley   +1 more source