Results 121 to 130 of about 912,361 (332)

Measurement of the Hyperfine Structure and Isotope Shifts of the 3s23p2 3P2 to 3s3p3 3Do3 Transition in Silicon

open access: yes, 2010
The hyperfine structure and isotope shifts of the 3s23p2 3P2 to 3s3p3 3Do3 transition in silicon have been measured. The transition at 221.7 nm was studied by laser induced fluorescence in an atomic Si beam.
G. T. Emery   +5 more
core   +1 more source

Mechanochemistry for Metal–Organic Frameworks and Covalent–Organic Frameworks (MOFs, COFs): Methods, Materials, and Mechanisms

open access: yesAdvanced Materials, EarlyView.
An overview is provided of the mechanochemistry of metal‐organic frameworks (MOFs) and covalent‐organic frameworks (COFs), highlighting opportunities and strategies for discovery, synthesis and reactivity studies of these materials. Mechanistic studies and comparisons to the mechanochemistry of organic solids are outlined, showcasing how advances in ...
Joseph M. Marrett   +3 more
wiley   +1 more source

Monte Carlo evaluation of the equilibrium isotope effects using the Takahashi-Imada factorization of the Feynman path integral

open access: yes, 2013
The Feynman path integral approach for computing equilibrium isotope effects and isotope fractionation corrects the approximations made in standard methods, although at significantly increased computational cost.
Buchowiecki, Marcin, Vanicek, Jiri
core   +1 more source

Aqueous Colloidal Perovskite Quantum Emitters

open access: yesAdvanced Materials, EarlyView.
Facile structural transformation‐induced in situ core‐shell self‐assembly for constructing mono‐dispersed aqueous colloidal perovskite nanocrystals, exhibiting unprecedented aqueous solution single photon emission. Abstract Aqueous solutions of nanoparticles are the cornerstones for applications in diagnostics, catalysis and more, where control over ...
Huajun He   +10 more
wiley   +1 more source

Toward Stable, High‐Energy, Partially Disordered Mn‐Rich Spinel Cathodes by Revealing and Mitigating Surface Degradation

open access: yesAdvanced Materials, EarlyView.
Mechano‐activated partially disordered spinel LiMn2O4 is demonstrated with high Mn utilization and a specific energy over 800 Wh kg−1 at the cathode active material (CAM) level. Surface degradation, caused by the Jahn‐Teller effect in baseline commercial carbonate electrolyte (Gen 2), intensifies Mn2+ dissolution and crosstalk at high potentials ...
Dawei Xia   +15 more
wiley   +1 more source

Isotope effects in the Hubbard-Holstein model within dynamical mean-field theory

open access: yes, 2006
We study the isotope effects arising from the coupling of correlated electrons with dispersionless phonons by considering the Hubbard-Holstein model at half-filling within the dynamical mean-field theory. In particular we calculate the isotope effects on
Capone, M.   +4 more
core   +1 more source

Recent Advances in Heterogeneous Frustrated Lewis Pair: Synthesis, Characterization, and Catalysis

open access: yesAdvanced Materials, EarlyView.
This review provides a concise analysis of heterogeneous frustrated Lewis pair (FLP) chemistry, focusing on their synthesis, characterization, and application in small‐molecule activation. It highlights current challenges in developing solid FLP systems and explores promising advancements through emerging technologies, offering critical insights into ...
Jiasi Li   +2 more
wiley   +1 more source

Research Progress in AMS Measurement of Pu Isotopes

open access: yesJournal of Isotopes, 2021
Actinides transuranic element Pu, mainly comes from artificial nuclear activities and now widely found in nature, has an important research and application value in multiple basic research and application fields.
GONG Jie;HE Ming;ZHAO Qingzhang;PANG Yijun;HU Pan;ZHANG Wenhui;ZHNG Yuxuan;WU Shaoyong
doaj  

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