Results 71 to 80 of about 11,108,449 (286)
Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction
Advanced Science, EarlyView.Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen +5 more
wiley +1 more source
Fine Structure and Formation Mechanism of a Sunspot Bipolar Light Bridge in NOAA AR 13663
The Astrophysical JournalBipolar light bridges (BLBs) are bright regions located between sunspot umbrae of opposite magnetic polarity. They are typically characterized by strong magnetic fields and intense flows, which are believed to be closely associated with major solar ...
Fangfang Qiao +5 more
doaj +1 more source
Formation of magnetic flux tubes in cylindrical wedge geometry [PDF]
, 2012 Three-dimensional (3D) MHD numerical simulations have not been able to demonstrate convincingly the spontaneous formation of large vertical flux tubes.
Hurlburt, Neal +8 more
core +1 more source
Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective
Advanced Science, EarlyView.This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu +6 more
wiley +1 more source
What Causes the Asymmetry of Conjugate Hard X-Ray Footpoints in Solar Flares?
The Astrophysical Journal Supplement SeriesHard X-ray (HXR) emission in solar flares critically diagnoses nonthermal electron acceleration, transport, and precipitation. Observations commonly show asymmetric HXR photon fluxes between paired footpoints, whose physical origin remains debated, as ...
Mirabbos Mirkamalov +3 more
doaj +1 more source
Photospheric high-frequency acoustic power excess in sunspot umbra: signature of magneto-acoustic modes [PDF]
, 2013 We present observational evidence for the presence of MHD (magnetohydrodynamic) waves in the solar photosphere deduced from SOHO/MDI (Solar and Heliospheric Observatory/Michelson Doppler Imager) Dopplergram velocity observations.
Shelyag, S. +14 more
core +2 more sources
Advanced Science, EarlyView.A covalently integrated single‐component photocatalyst is constructed by anchoring selenoviologen to platinum nanoparticles via robust N‐heterocyclic carbene ligands. The resulting Pt─C covalent bonds function dually as protective structural scaffolds and direct channels for ultrafast intramolecular electron transfer This precise interfacial ...
Wenxi He +8 more
wiley +1 more source
Statistical Overview of Long-lived Active Regions Observed across Multiple Carrington Rotations
The Astrophysical JournalThe study of solar active regions (ARs) is of central importance to a range of fundamental science, as well as the practical applications of space weather. AR emergence and life cycles are two areas of particular interest, yet the lack of consistent full-
Emily I. Mason, Kara L. Kniezewski
doaj +1 more source
The large-scale magnetic fields of planet-hosting solar-type stars [PDF]
, 2017 Stellar magnetic fields and their associated phenomena influence stellar behaviour and evolution, and potentially have significant impacts on any surrounding planetary system.
Mengel, Matthew W.
core +1 more source
Advanced Science, EarlyView.Butterfly wing–inspired intrinsically self‐healing polymer interlayers enable flexible perovskite optoelectronics with high luminance, strain‐insensitive stability, and environmental resilience. These hierarchically structured films redistribute mechanical stress, suppress defect formation, and maintain performance under repeated bending, paving the ...
Loganathan Veeramuthu +13 more
wiley +1 more source