Results 111 to 120 of about 427 (224)

ZIF‐67‐Confined Pd Single‐Atom Catalysts Implanted Into Polydopamine‐Modified Bamboo Microchannels for Robust Continuous‐Flow Hydrogenation

Advanced Science, EarlyView.
The report presents a facile room‐temperature method to stabilize Pd single‐atom catalysts within ZIF‐67 crystals during their formation. Despite an ultralow Pd loading (0.0014 wt%), the catalytic microreactor, featuring atomically dispersed Pd‐N4 sites in ZIF‐67, demonstrates superior robustness and maximized Pd utilization, significantly ...
Sisi Yao, Jiawei Han, Wenjun Zhang, Dengkang Guo, Shenjie Han, Yun Lu, Jingpeng Li   +6 more
wiley   +1 more source

Stellar occultations: a gateway to advances in planetary science. [PDF]

Philos Trans A Math Phys Eng Sci
Souami D, Sfair R, Renner S, El Moutamid M.   +3 more
europepmc   +1 more source

Mars' plasma system. Scientific potential of coordinated multipoint missions: "The next generation". [PDF]

Exp Astron (Dordr), 2022
Sánchez-Cano B, Lester M, Andrews DJ, Opgenoorth H, Lillis R, Leblanc F, Fowler CM, Fang X, Vaisberg O, Mayyasi M, Holmberg M, Guo J, Hamrin M, Mazelle C, Peter K, Pätzold M, Stergiopoulou K, Goetz C, Ermakov VN, Shuvalov S, Wild JA, Blelly PL, Mendillo M, Bertucci C, Cartacci M, Orosei R, Chu F, Kopf AJ, Girazian Z, Roman MT.   +29 more
europepmc   +1 more source

An Advanced High‐Performance Ultrafast Ammonium‐Ion Aqueous Battery Based on Dual‐Metal Redox Open Framework Molecular Magnet

Advanced Science, EarlyView.
The Prussian Blue Analogue molecular magnet KMnFeHCF is demonstrated as a high‐performance cathode for ultra‐fast aqueous ammonium‐ion batteries. A full cell using KMnFeHCF and graphite delivers ~71 mAh g−1 at 1.25 A g−1 and ~51 mAh g−1 at 2.2 A g−1, retaining 50% capacity after 1850 cycles. Its scalability, cycling stability, and low cost offer strong
Nilasha Maiti, Pramod Bhatt, Manoj K Sharma, Sher Singh Meena, Mayuresh D Mukadam, Soumen Samanta   +5 more
wiley   +1 more source

Quantum sensing for NASA science missions. [PDF]

EPJ Quantum Technol
Mercer CR, Montbach EN, Christe SD, Connerton RM, Podolski DA, Robinson MP, Perez MR.   +6 more
europepmc   +1 more source

Damage‐Free Full‐Thickness Dicing of Ultra‐Thin GaAs Wafers Using a Femtosecond Laser with Low Residual Stress

Advanced Science, EarlyView.
This study presents a femtosecond laser‐based ultrashort pulse dicing system that uses a non‐diffracting Bessel beam to shape the femtosecond laser. The use of femtosecond Bessel beam shaping and high‐speed scanning enables rapid material removal that outpaces thermal diffusion, thereby suppressing melting, minimizing the HAZ, and reducing sidewall ...
Shunshuo Cai, Yankang Ding, Minxia Ding, Qi Song, Zhe Zhang, Siwei Zhang, Kunpeng Zhang, Yu Hou, Song Yue, Haiyan Shi, Man Li, Wenrui Duan, Zichen Zhang   +12 more
wiley   +1 more source

A magnetohydrodynamic mechanism for the formation of solar polar vortices. [PDF]

Proc Natl Acad Sci U S A
Dikpati M, Raphaldini B, McIntosh SW, Korsos MB, Guerrero GA, Gilman PA.   +5 more
europepmc   +1 more source

Photocatalytically Activated Cu‐N1S3 Single‐Atom Nanozyme: Enhancing Enzyme Activities and Antibacterial Synergy for Highly Efficient Fruit Preservation

Advanced Science, EarlyView.
This study presents S‐coordinated Cu single‐atom nanozymes (Cu/CNS) fabricated via mild photocatalytic self‐assembly strategy. The nanozyme exhibits exceptional multi‐enzyme activity and near‐perfect antimicrobial efficacy. Incorporated into chitosan‐gelatin film, it enables pH‐responsive, broad‐spectrum fruit preservation, more than doubling the shelf‐
Chuanlong Men, Chenchen Wu, Lei Wang, Shengjie Gao, Yu Mao, Wei Liu, Changhong Liu, Lei Zheng   +7 more
wiley   +1 more source

Visualizing Strain‐Coupled Cryogenic Phase Transitions and Defect Dynamics in Perovskite Quantum Dots Using In Situ STEM

Advanced Science, EarlyView.
Cryogenic cooling induces an orthorhombic‐to‐monoclinic phase transition in CsPbBr3 quantum dots, accompanied by pronounced strain localization at surfaces and interfaces. Multimodal in situ STEM directly visualize reversible defect healing during moderate cryogenic treatment and irreversible degradation upon prolonged exposure, revealing the intrinsic
Xinjuan Li, Zhao Jiang, Si Chen, Yi Tang, Bofeng Xue, Tianhao Wu, Yang Lu, Xavier Moya, Akshay Rao, Zhongzheng Yu, Caterina Ducati   +10 more
wiley   +1 more source

Compact Spatial Heterodyne Spectrographs for Future Space-Based Observations: Instrument Modeling and Applications. [PDF]

Sensors (Basel)
Sahoo A, Mathew J, Battisti A, Tucker B.
europepmc   +1 more source