Results 41 to 50 of about 25,467 (256)

Trained to corrode: Cultivation in the presence of Fe(III) increases the electrochemical activity of iron reducing bacteria – An in situ electrochemical XANES study

Electrochemistry Communications, 2020
This paper reports results from in situ electrochemical X-ray absorption near-edge spectroscopy (XANES) studies of the corrosion processes on model thin iron films in the presence of iron reducing bacteria Shewanella putrefaciens. Here we investigate the
Nina Wurzler, Jan David Schutter, Ralph Wagner, Matthias Dimper, Dirk Lützenkirchen-Hecht, Ozlem Ozcan   +5 more
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

Advanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli, Amina Lahrichi, Hoje Chun, Rafael Gómez‐Bombarelli, Bruno G. Pollet   +4 more
wiley   +1 more source

Cobalt XANES spectra.

, 2016
(A) Indicated Cbl solution samples, (B) CoFeSP-Cbl samples. Dotted lines mark edge half-height. Spectra of CoIII2O3 (solid black line) and CoIIO (dashed black line) are shown for comparison in (A) and (B).
Stefan Mebs (1455724), Michael Haumann (1455718), Sandra E. Hennig (3158502), Sebastian Goetzl (3158499), Peer Schrapers (1625575), Holger Dobbek (25368), Holger Dau (1625578)   +6 more
core   +1 more source

Application of X-ray absorption near edge spectroscopy to the study of the effect of sulphur on selenium uptake and assimilation in wheat seedlings

Biologia Plantarum, 2017
Selenium (Se) is an essential trace element for humans and animals. A hydroponic experiment was performed to study the effects of sulphur (S) on Se uptake, translocation, and assimilation in wheat (Triticum aestivum L.) seedlings.
Q. Q. Huang, Q. Wang, Y. N. Wan, Y. Yu, R. F. Jiang, H. F. Li   +5 more
doaj   +1 more source

Stabilising the Lattice Oxygen Oxidation Mechanism Through Iridium Single Atoms in Chromium-Doped Cobalt Iron Layered Double Hydroxides. [PDF]

Adv Sci (Weinh)
Iridium single atoms and Cr doping synergistically activate and stabilise the lattice oxygen oxidation mechanism in CoFe layered double hydroxides. Electronic modulation enhances metal–oxygen covalency, suppresses over‐oxidation, and enables durable oxygen evolution, delivering high‐performance anion exchange membrane water electrolysis with ...
Eskandari P, Zhou S, Yuwono J, Zhao Y, Xu H, Tian Z, Ba J, Zhang M, Johannessen B, Bui TS, Webster RF, Chu J, Lu X, Amal R.   +13 more
europepmc   +2 more sources

Electron‐Deficient Linkers Enhance H2O2 Electrosynthesis in Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
Linker π‐conjugation modulates the electronic state of the Ni–N4 centers and their interaction with the key *OOH intermediate while preserving the primary coordination motif. NiPc‐PTDA delivers an H2O2 selectivity of 92% and a production rate of 34.8 mol gcat−1 h−1, highlighting linker electronic properties as a molecular design parameter for NiPc ...
Houting Xie, Rui Guo, Zhen Liu, Yang Hu, Laichun Zhao, Omid Mazaheri, Bufeng Zhang, Shuaijun Pan   +7 more
wiley   +1 more source

Local Structure and Magnetism of LiFeSi0.01P0.99O4/C as a Cathode Material on Lithium-Ion Battery

Journal of Magnetism and Its Applications, 2021
The oxidation state and local structure of LiFeSi0.01P0.99O4/C composites as a cathode on lithium-ion battery were investigated by Fe K-edge X-ray Absorption Near Edge Spectroscopy (XANES) and Extended X-ray Absorption Fine Structure (EXAFS). The LiFeSi0.
Vera Laviara Maghfirohtuzzoimah, Sahara Hamas Intifadhah, Pelangi Az-zahra, Wantana Klysubun, Dita Puspita Sari, Isao Watanabe, Mochamad Zainuri, Fahmi Astuti   +7 more
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

XANES spectroscopy for the clinician

Comptes Rendus. Chimie, 2021
XANES spectroscopy, which uses synchrotron radiation as a probe, offers substantial information about the local structure of biological samples, encompassing those without long range order such as Pt anticancer molecules, and nanometre scale or amorphous
Bazin, Dominique, Reguer, Solenn, Vantelon, Delphine, Haymann, Jean-Philippe, Letavernier, Emmanuel, Frochot, Vincent, Daudon, Michel, Esteve, Emmanuel, Colboc, Hester   +8 more
doaj   +1 more source

Al3+/Ta5+ Co‐Doping Promotes Homogeneous Li+ Transport Enabling High Performance Ni‐Rich Layered Oxide Cathodes

Advanced Functional Materials, EarlyView.
Al3+/Ta5+ co‐doping refines the primary particles of LiNiO2, reduces Li/Ni antisite disorder, and expands the c‐axis lattice parameter, thereby enabling faster and more homogeneous Li+ transport. Such rapid and homogeneous Li+ transport suppresses high‐voltage phase transitions and microcrack formation, ultimately improving the rate capability and long‐
Yanhao Ren, Zezhou Lin, Zhaowen Bai, Wei Wang, Yangqian Zhang, Jihao Zhang, Qingyu Kong, Yisen Xu, Jiaqi Wu, Fengting Ye, Haitao Huang, Yang Ren   +11 more
wiley   +1 more source