Results 151 to 160 of about 50,397 (308)

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

Chemical Bonding in Monosubstituted Aromatic Molecules from Full-Valence Modern Ab Initio Valence Bond Calculations. [PDF]

J Phys Chem A
Barbosa AGH, Monteiro JGS.
europepmc   +1 more source

Transition Metal Complexes of Dicyanoacetylene: a Study of the Reaction Chemistry of Low Valence States of the Transition Metals, Platinum, Palladium, Nickel, Rhodium, and Iridium.

, 1971
Gregory Mcclure, Gregory Mcclure
openalex   +2 more sources

Hochtemperatur-Festkörperchemie von Verbindungen der seltenen Erden mit Valenzinstabilität: Nichtstöchiometrisches TmSe und Mischkristalle / High Temperature Solid State Chemistry of Rare Earth Compounds with Valence Instability: Nonstoichiometric TmSe and Alloys [PDF]

, 1979
E. Kaldis, B. Fritzler, W. Peteler
openalex   +1 more source

A Van der Waals Optoelectronic Synapse with Tunable Positive and Negative Post‐Synaptic Current for Highly Accurate Spiking Neural Networks

Advanced Functional Materials, EarlyView.
A van der Waals optoelectronic synaptic device based on a ReS2/WSe2 heterostructure and oxygen‐treated h‐BN is presented, which enables both positive and negative PSCs through photocarrier polarity reversal. Bidirectional plasticity arises from gate‐tunable band bending and charge trapping‐induced quasi‐doping.
Hyejin Yoon, Soeun Park, Yeong Kwon Kim, Juhwan Baek, Ki Han Kim, Seongil Yun, Hyeonchang Son, Jeongeun Choi, Byung Chul Jang, Dong‐Ho Kang   +9 more
wiley   +1 more source

Structural chemistry-guided revelation of superior thermally insulative TeI₄. [PDF]

Natl Sci Rev
Bai Q, Chen Z, Liu Z, Wu L, Li C, Yang J, Luo J.   +6 more
europepmc   +1 more source

Exploring the Concept of Valence and the Nature of Science via Generative Artificial Intelligence and General Chemistry Textbooks [PDF]

Rebecca M. Jones, Eva-Maria Rudler, C.J. Preston   +2 more
openalex   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Transition from the Nanoscale to Bulk in the Nonequilibrium Optical Response of Laser-Dressed Materials. [PDF]

J Phys Chem Lett
Tiwari V, Sierra-Ossa L, Wojcik P, Franco I.   +3 more
europepmc   +1 more source

Cyanate groups in higher oxidation state metal cluster chemistry: Mixed-valence (II/III) Mn16 and Mn18 clusters

, 2015
Dimitris I. Alexandropoulos, Eleni E. Moushi, Constantina Papatriantafyllopoulou, Christine M. Beavers, Simon J. Teat, Anastasios J. Tasiopoulos, George Christou, Theocharis C. Stamatatos   +7 more
openalex   +2 more sources