Results 81 to 90 of about 1,225,592 (234)

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

Vacuum‐Induced Surface Reconstruction of Mn–Ce Oxides for Low‐Temperature Coupled Redox Catalysis

Angewandte Chemie, EarlyView.
Near‐surface reconstruction enhances low‐temperature redox catalysis in Mn–Ce mixed oxides. Sequential vacuum annealing and reduced‐pressure O2 treatment enrich Mn near the surface while preserving the CeO2 fluorite framework, promoting interfacial electron redistribution, oxygen activation, and redox cycling.
Yong Yin, Yide Jiang, Zichen Xu, Min Liu, Emiliano Cortés, Yifei Sun   +5 more
wiley   +2 more sources

Numerical and Experimental Research on the Effects of Hydrogen Injection Timing on the Performance of Hydrogen/N-Butanol Dual-Fuel Engine with Hydrogen Direct Injection

Energies
Hydrogen injection timing (HIT) plays a crucial role in the combustion and emission characteristics of a hydrogen/n-butanol dual-fuel engine with hydrogen direct injection. This study employed an integrated approach combining three-dimensional simulation
Weiwei Shang, Xintong Shi, Zezhou Guo, Xiaoxue Xing   +3 more
doaj   +1 more source

Using Diffusion Maps to Analyze Reaction Dynamics for a Hydrogen Combustion Benchmark Dataset. [PDF]

J Chem Theory Comput, 2023
Ko T, Heindel JP, Guan X, Head-Gordon T, Williams-Young DB, Yang C.   +5 more
europepmc   +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

Site‐Specific Molecular Engineering Redirects Radical Pathways for Selective Photocatalytic Coupling of Methane to C2+ Hydrocarbons

Angewandte Chemie, EarlyView.
Site‐specific self‐assembly of alkyl thiols on Au/TiO2 enables precise modulation of interfacial electron distribution and the local microenvironment through covalent Au‐thiolate interactions. This site‐specific molecular engineering synergistically promotes surface kinetics and charge separation, suppressing ·O2−‐driven overoxidation and thereby ...
Yaru Shao, Wanying Guo, Wei Li, Gaoyu Cui, Huijie Cheng, Lingfeng Zhu, Liqun Ye, Zihan Qiu, Yu Shan, Rui Li, Tianyi Ma, Jungang Hou   +11 more
wiley   +2 more sources

The Impact of Hydrogen on Flame Characteristics and Pollutant Emissions in Natural Gas Industrial Combustion Systems

Energies
To improve energy savings and emission reduction in industrial heating furnaces, this study investigated the impact of various molar fractions of hydrogen on natural gas combustion and compared the results of the Non-Premixed Combustion Model with the ...
Yamei Lan, Zheng Wang, Jingxiang Xu, Wulang Yi   +3 more
doaj   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

Advanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu, Yufei Zhang, Han Zhao, Pooi See Lee, Daniel H.C. Chua   +4 more
wiley   +1 more source

Research Progress of Hydrogen/Ammonia Gas Turbine Combustion Chambers [PDF]

MATEC Web of Conferences
Ammonia/hydrogen mixed fuel is important for the deep decarbonization of gas turbines. However, the combustion characteristics of the mixed fuel are at two opposite extremes: the highly reactive hydrogen is easily flashback; the less reactive ammonia has
Zhang Junyan
doaj   +1 more source