Results 91 to 100 of about 31,073 (244)

Cyclopropylamine‐Derived Distonic Iminium Radicals: Photoinduced Strategies in Chemo‐ and Stereo‐Selective Synthesis

Chemistry – A European Journal, EarlyView.
Cyclopropylamines have emerged as powerful photocatalytic building blocks. Upon light‐induced single‐electron oxidation, they undergo strain‐release ring opening to generate distonic iminium radicals that enable diverse transformations, including ring‐opening functionalization, formal [3 + 2] cycloadditions, radical cascades, and asymmetric bond ...
Maria Chiara Cabua, Alberto Luridiana, Francesco Secci, Emanuele Cocco   +3 more
wiley   +1 more source

Tribochemical Surface Modification of Silicon

Chemistry – A European Journal, EarlyView.
Mechanical scribing activates silicon surfaces by generating reactive sites that spontaneously graft alcohol‐, thiol‐, and alkyne‐terminated molecules under ambient conditions. Within 10 s, high‐coverage, electroactive organic layers form without light, heat, or applied voltage, offering a rapid tribochemical route to functional silicon interfaces for ...
Abdulrahman O. Abdulrahman, Kieran Reeve, Zane Datson, Tiexin Li, Melanie MacGregor, Simone Ciampi, Nadim Darwish   +6 more
wiley   +1 more source

Redox‐Switchable Optical and Magnetic Properties in a Self‐Assembled Hexanuclear Ni(II) Double‐Decker Complex

Chemistry – A European Journal, EarlyView.
A triangular double‐decker Ni6 complex self‐assembles from Ni(II), TMEDA, and a triphenylene tris dioxolene non‐innocent ligand, with two face‐to‐face tris‐semiquinone decks held by a strong covalent C─C interaction. This rigid scaffold delivers four reversible ligand‐centered redox events: oxidation switches on an intense near‐infrared band and ...
Aristide Colin, Yiting Wang, François Lambert, Régis Guillot, Eric Rivière, Zakaria Halime, Nicolas Suaud, Nathalie Guihéry, Ganping Wang, Thayalan Rajeshkumar, Laurent Maron, Nathalie Bridonneau, Talal Mallah   +12 more
wiley   +1 more source

Association of urinary perchlorate, nitrate, and thiocyanate concentrations with pulmonary function in children aged 6–19 years

BMC Public Health
Background Humans are widely exposed to mixtures of environmental perchlorate, nitrate, and thiocyanate. However, the associations of perchlorate, nitrate, and thiocyanate with pulmonary function in children were unclear.
Linlin Yu, Shuang Shi, Li Shen, Tan Cheng, Guodong Ding, Xiaoping Jing   +5 more
doaj   +1 more source

Association between Perchlorate and Indirect Indicators of Thyroid Dysfunction in NHANES 2001–2002, a Cross-Sectional, Hypothesis-Generating Study

Biomarker Insights, 2011
Background A previous study based on NHANES 2001–2002 observed that increased levels of urinary perchlorate were associated with increased levels of thyroid stimulating hormone among all women, and with decreased levels of thyroxine among women with low ...
Dina M. Schreinemachers
doaj   +1 more source

Aqueous Supercapacitor with Wide‐Temperature Operability and over 100,000 Cycles Enabled by Water‐in‐Salt Electrolyte

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
This study presents a symmetric supercapacitor with activated carbon electrodes and a “water‐in‐salt” electrolyte (WiSE) based on lithium perchlorate, offering over 100,000 cycles with over 90 % capacity retention. The supercapacitor operates efficiently from −20 to 80 °C, enhancing performance, stability, and all‐season operability.
Zahid Ali Zafar, Radim Weisser, Ghulam Abbas, Martin Silhavik, Prabhat Kumar, Jiří Červenka   +5 more
wiley   +1 more source

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

EcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang, Yuan Zhao, Lin Zu, Lili Ling, Yongwei Zhao, Jun Di, Pin Song   +6 more
wiley   +1 more source

Dynamic Reconstruction of Interfacial Hydrogen‐Bond Networks Enhances CO2 Electroreduction Selectivity

EcoEnergy, EarlyView.
Concentrated NaClO4 dynamically reconstructs interfacial hydrogen‐bond networks during CO2 electroreduction, restricting proton transport and stabilizing CO‐derived intermediates. Multinuclear NMR, infrared spectroscopy, and simulations reveal electrolyte‐mediated electric‐double‐layer regulation, which suppresses hydrogen evolution and enhances C–C ...
Hang Zhou, Ying Liu, Zejiang Huang, Xiaomeng You, Jingyi Pang, Haifeng Wang, Xue‐Lu Wang, Ye‐Feng Yao   +7 more
wiley   +1 more source

Smart Functional Hydrogels: Emerging Platforms for Thermal and Electrochemical Energy Harvesting and Conversion Systems

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydrogel exhibits versatile functions, including efficient thermogalvanic conversion under a temperature difference, and acting as a cooling layer/forming a thermally conductive nanoactive composite for thermovoltaic conversion. Additionally, its self‐healing and self‐powered flexibility play a key role in energy storage systems. The growing demand 
Eunah Kang
wiley   +1 more source

Amide Methylation Empowers Concentrated Hydrogel Electrolytes for Wide‐Temperature Flexible Aqueous Sodium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An aprotic poly(N,N‐dimethylacrylamide) matrix provides free C=O sites for strong ion solvation, establishing a stable and homogeneous gel phase. This unique polymer network effectively reduces H2O activity, enabling highly concentrated gel electrolytes for high‐voltage, wide‐temperature, and flexible aqueous sodium‐ion batteries.
Shibo Chai, Xianshengwei Zhang, Wenpin Li, Minghao Xu, Shengjun Zhai, Peng Gong, Yihang Zhang, Jiale Xia, Yuanyuan Li, Jinping Liu   +9 more
wiley   +1 more source