Results 221 to 230 of about 69,476 (295)

Electrochemical Hofmann Rearrangement for Modular Synthesis of Unsymmetrical Ureas and Late‐Stage Modification of Drugs

Advanced Science, EarlyView.
An electrochemical Hofmann rearrangement of amide involving amine or other amide nucleophiles has been developed. The use of NaI guarantees the feasibility and compatibility of the electrosynthesis protocol, which enables highly chemoselective synthesis of unsymmetrical N‐acylureas from two different amides, as well as the production of unsymmetrical ...
Xue‐Qing Mou, Xiao Zha, Yu‐Rui Jian, Shao‐Xing Zhong, Xin‐Yu Fu, Sheng‐Yang Xu, Wei Xiang, Bao‐Dong Cui, Yun Zhang, Yong‐Zheng Chen   +9 more
wiley   +1 more source

A Wood Plasticine With Controlled Phase‐Change Behavior and Malleability for Energy‐Closed‐Loop and Conformally Adaptive Thermal Management

Advanced Science, EarlyView.
A photothermal wood plasticine exhibiting controlled phase‐change behavior and malleable property is developed. The developed wood plasticine can provide all‐day, on‐demand, and low‐loss solar heating for geometrically diverse objects, including thermoelectric generator, human body, and battery, through its controlled crystallization‐melting ...
Jiazuo Zhou, Yifan Liu, Lei Qiao, Yuehe Gu, Taikun Yao, Wenbo Zhang, Fangmiao Wang, Yudong Li, Xinyao Ji, Lingyi Kong, Haiyue Yang, Yao Xiao, Chengyu Wang   +12 more
wiley   +1 more source

Redox‐Active Tungsten Mono‐Oxo Bis(dithiolene) Complex: A Fast‐Rechargeable Anode for High‐Capacity Lithium‐Ion Batteries

Advanced Science, EarlyView.
This study reports the first application of a W‐oxo bis(dithiolene) complex, (Et4N)2[WO(S2C2(C6H5)2)2], as a novel anode material for lithium‐ion batteries. This complex stores Li+ ions via multivalent W‐centered redox processes involving its oxo (WO) and dithiolene (S) sites.
Honggyu Seong, Jaeheon Lee, Jae Hyun Park, Woonghee Lee, Junhyeok Seo, Jaewon Choi   +5 more
wiley   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Expanded graphite incorporated with Li₄Ti₅O₁₂ nanoparticles as a high-rate lithium-ion battery anode. [PDF]

RSC Adv
Zhao J, Zhu X, Zhang W, Qiu J, Zhai F, Zhang H, Cao G, Gao S, Ding F, Xiang Y.   +9 more
europepmc   +1 more source

Highly Robust Sn‐Based MAX Anodes Constructed via Ti6C Octahedral Outer Immobilization and A‐Layer Fe Inner Anchoring for Long‐Life Lithium‐Ion Batteries

Advanced Science, EarlyView.
How can Sn‐based anodes achieve high capacity and long‐life cycling? This work unlocks the potential anode structure by confining Sn in the A layer of MAX phase with Ti6C octahedra as outer immobilization and Fe as inner anchors. The introduction of Fe dramatically strengthens the Ti–Sn bond to enhance structural integrity, modulate interfacial ...
Yu‐ang Lei, Yuchen Guo, Linkai He, Yi Tang, Junhui Zou, Yangyang Xie, Xiaodie Xuan, Zhao Bi, Yu Wang, Ting Liu, Yunqing Kang, Taotao Ai, Yusuke Yamauchi, Chenhui Yang   +13 more
wiley   +1 more source

Nanocurvature‐Activated Dipolar Polarization in M–N4 Single‐Atom Sites for High‐Performance Electromagnetic Wave Absorption

Advanced Science, EarlyView.
Increasing nanocurvature effectively enriches the local electron density of the M–N4 motif, which facilitates electron transfer from the metal center to nitrogen atoms. This electronic behavior intensifies the localization and asymmetric distribution of charge, thereby significantly amplifying the dipole moment and polarizability.
Daohu Sheng, Siyao Cheng, Mengmeng Zhang, Jinglei Zhang, Xufei Zhu, Weijin Li, Bo Zhang, Aming Xie   +7 more
wiley   +1 more source

Modulating the Charge Transfer Channels via Constructing Charge‐Assisted Hydrogen‐Bonded Organic Frameworks for Enhanced Photosynthesis of Hydrogen Peroxide

Advanced Science, EarlyView.
This work reports a strategy of engineering charge‐assisted hydrogen bonds to tailor charge transfer channels in HOFs, significantly improving their performance in photocatalytic H2O2 production. ABSTRACT The production of H2O2 via artificial photosynthesis is often limited by inefficient charge‐carrier separation, causing significant charge ...
Yajun Zhao, Xianzhi Lan, Tiantian Chen, Qijie Mo, Chao Peng, Jianbo Jia, Jiewei Liu, Cheng‐Yong Su   +7 more
wiley   +1 more source

Atomic Interlayer Mo–N4 Sites Enable Rapid Charge Transfer and Efficient CO2 Photoreduction

Advanced Science, EarlyView.
This work achieved efficient CO2 activation and ultrafast interlayer electron transport in a 2D COF by constructing atomic‐level Mo‐N4‐induced interlayer electron bridges (IEB), thereby kinetically and thermodynamically co‐driving the photocatalytic coupling of CO2 reduction with 4‐methoxybenzyl alcohol oxidation.
Lijuan Sun, Haiwei Su, Zhen Chen, William Orbell, Guijie Liang, Weikang Wang, Lele Wang, Juan Yang, Qinqin Liu, Junhua Li   +9 more
wiley   +1 more source