Results 121 to 130 of about 21,282 (312)

Deciphering the Dynamic Balance Between Solvation Strength and Polysulfides Reaction Heterogeneity in Practical Lithium‐Sulfur Batteries

Advanced Science, EarlyView.
A weakly solvating fluorinated cosolvent (1200ET) enables precise solvation‐power regulation in Li–S batteries, decoupling interfacial stabilization from sulfur redox kinetics. This approach suppresses polysulfide dissolution while preserving reaction kinetics, leading to a stable Li metal interface and high‐energy multilayer pouch cells, revealing a ...
Huidong Dai, Pranathi Garlapati, Srinidi Badhrinathan, Luisa Gomes, Tongtai Ji, Dominik Wierzbicki, Yonghua Du, Neville Pavri, Sanjeev Mukerjee, Gaind P. Pandey   +9 more
wiley   +1 more source

XANES AND THE DETERMINATION OF BOND ANGLES [PDF]

Le Journal de Physique Colloques, 1985
It is argued that conventional weak scattering probes provide no direct information beyond the radial distribution function. In contrast, X-ray Absorption Near Edge Structure is produced by the multiple scattering of low energy electrons and has sensitivity to bond angles and symmetry of the ...
openaire   +2 more sources

Asymmetrically Coordinated Dual‐Atom Manganese Contrast Agents Enabling High‐Efficiency T1 Enhanced MRI for Precise Tumor Visualization

Advanced Science, EarlyView.
A novel dual‐atom manganese MRI contrast agent (Mn‐BN) with a unique asymmetric coordination geometry provided a promising platform for sensitive and specific tumor imaging. In mice model, Mn‐BN nanoparticles precisely functioned as both a primary tumor‐specific enhancer in subcutaneous models and a hepatocyte‐specific agent in liver metastases models ...
Ding Yang, Qing‐Yang Li, Jianli Liang, Gengyou Li, Nan Sun, Qianqian Song, Haitao Zhu, Xiaoting Li, Zechuan Li, Jiankai Dong, Weisheng Guo, Yafang Xiao, Chun‐Sing Lee, Ying‐Shi Sun   +13 more
wiley   +1 more source

Depth distribution of secondary phases in kesterite Cu2ZnSnS4 by angle-resolved X-ray absorption spectroscopy

APL Materials, 2017
The depth distribution of secondary phases in the solar cell absorber material Cu2ZnSnS4 (CZTS) is quantitatively investigated using X-ray Absorption Near Edge Structure (XANES) analysis at the K-edge of sulfur at varying incidence angles.
J. Just, D. Lützenkirchen-Hecht, O. Müller, R. Frahm, T. Unold   +4 more
doaj   +1 more source

Na K-edge XANES spectra of minerals and glasses.

, 2004
Na K-edge X ray absorption near-edge structure (XANES) spectra for minerals and glasses were collected using synchrotron radiation. Na-K XANES is a good structural probe to determine the coordination state of this element in important minerals and ...
Neuville, D.R., Lagarde, P., Cormier, L., Flank, A.M., Prado, R.J.   +4 more
core   +1 more source

Mn‐Induced Support Stabilization and Ir Electronic Activation Enable Acid‐Stable, Low‐Loading IrO2 Water Oxidation

Advanced Science, EarlyView.
This study introduces a dual‐regulation strategy utilizing a Mn‐doped Co3O4 support to enhance the activity and stability of low‐loading IrO2 catalysts for acidic water oxidation. Mn induces strong Mn─O covalency to reinforce the spinel lattice and activates Ir sites via interfacial electron transfer.
Zhe Liu, Guoxin Ma, Shixiang Yu, Rui Jin, Fei Wang, Xinxin Wen, Mengxin Chen, Yani Ding, Jia Liu, Xinkai Guo, Diab Khalafallah, Hassan Fouad, Xiao Ren, Siwei Li   +13 more
wiley   +1 more source

Spectroscopy-guided discovery of three-dimensional structures of disordered materials with diffusion models

Machine Learning: Science and Technology
Spectroscopy techniques such as x-ray absorption near edge structure (XANES) provide valuable insights into the atomic structures of materials, yet the inverse prediction of precise structures from spectroscopic data remains a formidable challenge.
Hyuna Kwon, Tim Hsu, Wenyu Sun, Wonseok Jeong, Fikret Aydin, James Chapman, Xiao Chen, Vincenzo Lordi, Matthew R Carbone, Deyu Lu, Fei Zhou, Tuan Anh Pham   +11 more
doaj   +1 more source

V2CTx MXene as a Sacrificial Promoter for NiFe Catalyst for Anion Exchange Membrane Electrolyzers

Advanced Science, EarlyView.
These findings demonstrate that V2CTx functions beyond passive conductive support as an active electronic participant whose structural legacy sustains durable performance even after vanadium leaching in Anion Exchange Membrane (AEM) Electrolysers. ABSTRACT Nickel‐iron layered double hydroxides (NiFe‐LDH) show excellent activity, their poor conductivity
Bastian Schmiedecke, Can Kaplan, Karuppasamy Dharmaraj, Axel Zuber, Merve Buldu‐Aktürk, Ningjun Chen, Mailis Lounasvuori, Xuyun Guo, Valeria Nicolosi, Thorsten Schultz, Norbert Koch, Johanna Rosen, Michelle P. Browne   +12 more
wiley   +1 more source

Ab Initio XAFS and XANES Standards

, 1993
Ab initio x-ray-absorption fine structure (XAFS) and x-ray-absorption near edge structure (XANES) standards are developed for molecules and solids. These standard XAFS spectra are obtained from ab initio XAFS calculations, using an automated code, FEFF ...
S. I. Zabinsky, R. C. Albers, J. J. Rehr
core   +1 more source

High Fracture Toughness of 1D Copper‐Based MOP Electrode Enables Fast‐Charging Lithium‐Ion Batteries

Advanced Science, EarlyView.
Traditional electrode materials suffer from particle cracking and rapid capacity fade during fast charging, largely originating from their low fracture toughness. This work introduces a one‐dimensional Cu‐based metal–organic polymer, in which strong π‐d conjugation and π–π stacking endow the framework with high fracture toughness, simultaneously ...
Mingli Li, Zhenzhen Wu, Pan Yang, Di Zhao, Mengyang Dong, Muhammad Tayyab Ahsan, Lei Zhang, Shanqing Zhang, Yun Wang   +8 more
wiley   +1 more source