Results 61 to 70 of about 417 (197)
Direct visualization of a Fe(IV)–OH intermediate in a heme enzyme
Nature Communications, 2016 The nature of the ferryl intermediate generated in reactions catalysed by heme-containing enzymes is uncertain, due to the ambiguity of X-ray crystallography data.
Hanna Kwon +10 more
doaj +1 more source
Advanced Science, EarlyView.This review explores emerging 2D materials beyond graphene, including graphdiyne, phosphorene, borophene, siloxene, MBene, antimonene, and germanene for Li/Na–S batteries. It analyzes their roles as sulfur hosts, metallic anode protectors, separators, and electrolyte fillers, emphasizing polysulfide suppression, dendrite inhibition, and interfacial ...
Naveen Kumar T. R +7 more
wiley +1 more source
Angewandte Chemie, EarlyView.Despite its promise for producing metastable materials, the mechanisms underlying solid‐state microwave synthesis remain poorly understood. By combining in situ thermography with x‐ray diffraction and solid‐state NMR, this study uncovers a surprising order–disorder–order reaction pathway during the microwave synthesis of the Li1.1Mn0.9O1.9F0.1${\rm Li ...
Erick A. Lawrence +8 more
wiley +2 more sources
Advanced Science, EarlyView.The cathode of proton exchange membrane water electrolyzers remains a poorly understood region despite its importance for hydrogen purity and operational safety. Operando synchrotron X‐ray radiography directly visualizes liquid water behavior and uncovers a transition from continuous to pulsating transport, providing new insight into multiphase ...
Wataru Yoshimune +2 more
wiley +1 more source
Chelation Drives Surface Substitution in Hybrid‐MXenes
Angewandte Chemie, EarlyView.We demonstrate ethylenediamine‐derived bidentate binding on Ti3C2 by controlled deprotonation of ─NH2 groups during reaction with Ti3C2Br2. XRD, XPS, ssNMR, STEM, DFT, and INS confirm the bidentate coordination and the superior stability of chelating modes, while AIMD reveals proton transfer and new surface imine–Ti bonding mode.
Vikash Khokhar +13 more
wiley +2 more sources
Journal of Applied Science and EngineeringNumerical simulations are carried out to study the temporal behaviour of the neutron population and the concentration of delayed neutron precursors in a nuclear power plant by solving the stochastic equations of point kinetics considering temperature ...
Daniel Suescún-Díaz
doaj +1 more source
Nuclear Electromagnetic Generator: Introduction in Neutron Algebra and Elements of Neutron Kinetics
OALib, 2018 In the work, the problem of neutron kinetics in general view taking into account the all groups of delayed neutrons is solved. Conception of the matrix of complete neutron kinetics is introduced and are determined its properties. In the task about a finding of overt form for the solution of kinetic equations, the separation method and the reducing ...
openaire +1 more source
Fabrication of Composite Cathode for All‐Solid‐State Sodium Batteries
Advanced Energy Materials, EarlyView.The design of composite cathodes for all‐solid‐state sodium batteries must address three critical challenges—interfacial side reactions, interfacial delamination, and highly tortuous transport pathways. This work outlines structural and interfacial strategies to optimize ion transport and mechanical stability, enabling durable, and high‐performance ...
Gaoming Sun +6 more
wiley +1 more source
Angewandte Chemie, EarlyView.In this work, we establish a direct correlation between internal compactness and particle architectural stability, identifying it as a key descriptor of cathode structural integrity. Simultaneously, the capacity contribution and compensation mechanism of ARR are resolved, revealing that the extent of irreversible capacity loss is governed by both the ...
Yizhen Huang +24 more
wiley +2 more sources
Acta Chimica Slovenica, 2016 The research on metal-organic frameworks (MOFs) experienced rapid progress in recent years due to their structure diversity and wide range of application opportunities.
Matjaž Mazaj +2 more
doaj +1 more source