Results 111 to 120 of about 2,411,267 (285)

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

Designing coupling reaction of aluminum with fluorine and oxygen to tune combustion reaction and energy output

Energetic Materials Frontiers
Aluminum (Al) has been wildly applied in energy, chemical industry and aerospace due to its appropriate reaction kinetics and readily availability, however, a huge issue is incomplete combustion reaction and energy output resulted from inert Al 2 O 3 ...
Wei Dai, Yao-Feng Mao, Yong-Jun Deng, Wei Cao, Jun Wang   +4 more
doaj   +1 more source

Redefining the Minimal Editable Unit of Supramolecular Synthons: A 1→2 Lattice‐Editing Strategy in Ternary Multicomponent Crystals

Advanced Science, EarlyView.
Inspired by skeletal editing, we propose a lattice‐editing strategy that extends the minimal editable unit in supramolecular crystals from individual components to local supramolecular structural units, enabling non‐stoichiometric one‐to‐many substitution while preserving the parent lattice architecture.
Zheng Lin, Honglei Xia, Min Li, Ruihui Wang, Ying Wang, Xiaoyu Feng, Mingjing Tang, Yuan Zhang, Qinghua Zhang   +8 more
wiley   +1 more source

Measurement and modelling of combustion in a spark ignition engine [PDF]

, 1991
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A study has been conducted into the causes of cycle by cycle variations in combustion within a spark ignition engine, the best measured engine parameter to ...
Brown, Andrew Gavin
core   +1 more source

Oxidation Mechanisms of Low Molecular Valeric Acidic Compounds in Coal Spontaneous Combustion

Fire
Coal spontaneous combustion seriously threatens the safety of coal mine production, and studies on low molecular compounds in coal spontaneous combustion are limited.
Shaobo Qu, Xiaobo Wang, Tianyi Yang, Wenhao Deng, Sichen Liu, Hanzhong Deng, Yafei Shan, Hongguang Ji   +7 more
doaj   +1 more source

In Situ Generation of Gel Foam via Heat‐Accelerated Calcium Ion Release From Nano‐CaCO3 for Lithium‐Ion Battery Fire Suppression and Prevention

Advanced Science, EarlyView.
We present a heat‐accelerated in situ crosslinking strategy to create an alginate gel foam for lithium‐ion battery fire suppression. At ambient temperature, the formulation maintains low viscosity for easy foam generation. After exposure to fire, δ‐gluconolactone hydrolysis accelerates, enabling rapid Ca2+ release from CaCO3 and rapid ionic ...
Xiaoyang Yu, Cuiping Li, Mingjun Xu, Man Pun Wan   +3 more
wiley   +1 more source

Architected Spatially Deterministic Multiscale Phase Segregation in Block Copolymer Composites for Augmented Radiative Cooling

Advanced Science, EarlyView.
Multiscale phase segregation in block copolymers enables spatially deterministic structuring from molecular to macroscopic scales, decoupling solar scattering and infrared emission for augmented radiative cooling. ABSTRACT Passive radiative cooling, which reflects solar irradiation while emitting heat through the atmospheric window, provides a ...
Mingxin Feng, Feiyang Zhou, Haoran Cai, Wenchao Zhai, Shuangjiang Feng, Yanmei Liu, Xiaohai Bu, Man He, Dudong Feng, Shuang Liang, Yuming Zhou   +10 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

Fire‐Safe Hierarchical Solid Polymer Electrolytes Enabled by Dual‐Functional Microcapsules for Lithium Metal Batteries

Advanced Science, EarlyView.
Dual‐functional fire‐safe microcapsules are integrated into hierarchical solid polymer electrolytes to provide sequential protection against thermal abuse. The ammonium hydrogen phytate‐modified shell forms a protective char barrier, while the thermally triggered release of perfluoro(2‐methyl‐3‐pentanone) actively suppresses combustion, enabling safer ...
Ziqi Huang, Jiuqing Gui, Qiaoying Cao, Yong Xiao, Hang Hu, Yeru Liang   +5 more
wiley   +1 more source

Non-isothermal TGA study on the combustion reaction kinetics and mechanism of low-rank coal char. [PDF]

RSC Adv, 2018
Hu Y, Wang Z, Cheng X, Ma C.
europepmc   +1 more source