Results 51 to 60 of about 29,896 (261)

Spectral Decomposition of X-ray Absorption Spectroscopy Datasets: Methods and Applications

Crystals, 2020
X-ray absorption spectroscopy (XAS) today represents a widespread and powerful technique, able to monitor complex systems under in situ and operando conditions, while external variables, such us sampling time, sample temperature or even beam position ...
Andrea Martini, Elisa Borfecchia
doaj   +1 more source

random forest models for XAS

, 2020
Random forest models for XAS characterizations used in the maml ...
Chi Chen (5176490)
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

XAS data and instructions

, 2017
XAS raw data and instructions for handling the .prj format data- see ...
John Hutchinson (99766)
core   +1 more source

Gold‐Stabilized Copper Enables Anodic Hydrogen Evolution for Ultralow‐Voltage CO‐to‐Ethylene Electrolysis

Advanced Materials, EarlyView.
Gold‐stabilized copper suppresses hydroxide‐driven deactivation during anodic hydrogen evolution from furfural. Pairing this low‐potential anode with CO‐to‐ethylene electroreduction enables sub‐1 V operation at 400 mA cm−2, high single‐pass CO conversion, and co‐production of ethylene, furoic acid, and a separate hydrogen stream.
Sungjin Park, Hengzhou Liu, Heejong Shin, Hafiz Ghulam Abbas, Loann Bonnenfant, Ke Xie, Hyeon Seok Lee, Fatemeh Arabyarmohammadi, Jianan Erick Huang, Panos Papangelakis, Peiying Wang, Ali Shayesteh Zeraati, Jiheon Kim, Roham Dorakhan, David Sinton, Xiaopeng Liu, Wenzhen Li, Byoung‐hoon Lee, Edward H. Sargent   +18 more
wiley   +1 more source

Mouse livers machine learning identification based on hyperspectral x-ray computed tomography reconstructed x-ray absorption spectra

AIP Advances, 2020
X-ray computed tomography (X-CT) is often used to examine organs, but the reconstructed images can only be used for structural identification. Whether the organs are healthy or not requires a professional doctor to examine the reconstructed image and ...
Zheng Fang, Shuo Zhong, Weifeng Hu, Siyuan Cheng   +3 more
doaj   +1 more source

Study on valence offsets at InxGa1-xAs/InxAl1-xAs heterojunction [PDF]

, 1997
In this paper, the valence band offsets Delta E(v)(x) as a function of the alloy concentration x of the heterojunctions InxGa1-xAs/InxAl1-xAs are studied, using the average-bond-energy theory in conjunction with a cluster expansion method.
郑金成, Wang, R. Z., Zheng, Y. M., Zheng, J. C.   +3 more
core  

Spatial and dynamical properties of optical phonons in AlxGa1-xAs and GaAs/AlxGa1-xAs superlattices: Beyond the mean field approach

, 1996
Spatial and dynamical properties of optical phonons in AlxGa1-xAs alloys and CaAs/AlxGa1-xAs quantum wells are studied. An isotopically disordered harmonic crystal model is developed to study spatial properties of optical phonons in AlxGa1-xAs alloys. In
Song, JJ, Lim, YS, Kim, DS, Chang, JS, Lee, JH, Shin, EJ, Song, PH, Kang, KN, Kim, D, Jhi, SH, Ihm, J, Woo, DH, Yee, YH, Khim, JS   +13 more
core   +1 more source

Defect‐Engineered Microwave‐Responsive Ni@C Composites From Waste PET for Catalytic Plastic Upcycling

Advanced Materials, EarlyView.
A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu, Shiying Ren, Jingkai Lin, Kunsheng Hu, Yalan Mo, Shaobin Wang, Wenjie Tian, Xiaoguang Duan   +7 more
wiley   +1 more source

Active Phase of Nickel Electrocatalysts Driving Alkaline Hydrogen Evolution

Advanced Materials, EarlyView.
Using depth‐resolved and operando spectroscopic measurements coupled with electrochemical mass spectrometry, the authors uncover the critical role of sub‐surface oxidised species in increasing the activity and durability of Ni‐based cathodes for hydrogen evolution.
Yifeng Wang, Eleanor Ender, Santosh Kumar, Cindy Tseng, Guangmeimei Yang, Boxi Ye, Caiwu Liang, Youli Yu, Norton West, Inderjeet Chauhan, Jun H. Ng, Sid Halder, Sang Gu Ji, Georg Held, Mary P. Ryan, Katie L. Moore, Alex S. Walton, Reshma R. Rao   +17 more
wiley   +1 more source