Results 111 to 120 of about 484,156 (381)

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

XPS AND AES STUDY OF AlxGa1-xP SOLID SOLUTIONS

Acta Physica Sinica, 1985
The solid solution AlxGa1-xP(0≤x≤0.64) has been investigated by XPS and ABS.The experimental results show that the binding energy of P21, core level decreases and the top of the valence band recedes with increasing Al-content. Moreover the weak Auger peaks of GaP have been identified and clarified.
null ZHONG ZHAN-TIEN, null XING YI-RONG, null TU XING-ZHENG   +2 more
openaire   +1 more source

Practical Guides for X-Ray Photoelectron Spectroscopy (XPS): First Steps in planning, conducting and reporting XPS measurements.

Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films, 2019
Over the past three decades, the widespread utility and applicability of X-ray photoelectron spectroscopy (XPS) in research and applications has made it the most popular and widely used method of surface analysis.
D. Baer, K. Artyushkova, Christopher Richard Brundle, J. Castle, M. Engelhard, K. Gaskell, J. Grant, R. Haasch, M. Linford, C. Powell, A. Shard, P. Sherwood, V. Smentkowski   +12 more
semanticscholar   +1 more source

Oral Dosed Organo‐Silica Nanoparticles Restore Glucose Homeostasis and β‐Cell Function in Diabetes Rats

Advanced Functional Materials, EarlyView.
An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu, Mingli Wei, Che Bian, Xiaoshuang Bi, Yaxin Deng, Peifu Xiao, Jiansong Zhao, Yuying Wang, Haibing He, Jingxin Gou, Tian Yin, Xing Tang, Li Yang, Hongbo Zhang, Yu Zhang   +14 more
wiley   +1 more source

Near-IR Emitting Si Nanocrystals Fabricated by Thermal Annealing of SiN_x/Si₃N₄ Multilayers

Applied Sciences, 2019
Silicon nanocrystals in silicon nitride matrix are fabricated by thermal annealing of SiNx/Si3N4 multilayered thin films, and characterized by transmission electron microscopy, X-ray reflectivity and diffraction analysis, photoluminescence and X-ray ...
D. M. Zhigunov, A. A. Popov, Yu. M. Chesnokov, A. L. Vasiliev, A. M. Lebedev, I. A. Subbotin, S. N. Yakunin, O. A. Shalygina, I. A. Kamenskikh   +8 more
doaj   +1 more source

In situ XPS investigation of the X-ray-triggered decomposition of perovskites in ultrahigh vacuum condition [PDF]

, 2021
Wei‐Chun Lin, Wei-Chun Lo, Junxian Li, Yi‐Kai Wang, Jui-Fu Tang, Zi-Yun Fong   +5 more
openalex   +1 more source

Solar Heating Enhanced Selective Recovery of Metal Ions Through Flowing Electrodes Enabled by Hybrid Carbon Nanostructures

Advanced Functional Materials, EarlyView.
A new electrochemical system based on a microporous hybrid of carbon nanoplatelets and nanotubes to selectively capture Ni2+ from wastewater is constructed. The system temperature rises rapidly when irradiated with sunlight, which enhances the Ni2+ removal rate by 250% and the selectivity by 53%, and the energy consumption is also reduced by 51 ...
Ziquan Wang, Jiaqi Chen, Qiuru Lin, Mingxing Liang, Bo Yang, Yantao Chen, Minjun Kim, Yusuke Yamauchi, Stephen J. Eichhorn, Zhiqun Lin, Magdalena Titirici, Libo Deng   +11 more
wiley   +1 more source

Additional XPS Studies on the Degradation of Poly(Methyl Methacryalte) and Polystyrene Nanocomposites [PDF]

, 2004
XPS studies have been undertaken on exfoliated nanocomposites of polystyrene and poly(methyl methacrylate). One can clearly see that carbon is lost and that oxygen, silicon and aluminum accumulate at the surface of the degrading polymer.
Du, Jianxin, Su, Shengpei, Wang, Jianqi, Wilkie, Charles A.   +3 more
core   +1 more source

Electronic structure and transport properties of Cu-deficient kuramite Cu3-xSnS4

, 2015
Electrical and thermal transport properties of Cu-deficient kuramite Cu3-xSnS4 (CTS) was examined as a possible earth-abundant thermoelectric material. Crystallographic structure of CTS was characterized by partial disorder between Cu and Sn. In contrast
Goto, Yosuke, Kamihara, Yoichi, Matoba, Masanori, Sakai, Yuki   +3 more
core   +1 more source

Exciton Binding Energy Modulation in 2D Perovskites: A Phenomenological Keldysh Framework

Advanced Functional Materials, EarlyView.
The intrinsic screening effects are successfully decoupled from structural distortion by rigorously designing a series of 2D perovskites. This enabled us to demonstrate how the dielectric environment modulates the quasiparticle bandgap and exciton binding energy.
Kitae Kim, Namhee Kwon, Sang Woo Park, Wonsik Kim, Seunghwan Kim, Eunki Yoon, Aelim Ha, Donggyu Lee, Young Yong Kim, Jong‐Cheol Lee, Sungho Lee, Junghan Lee, Kyu Hyoung Lee, Yeonjin Yi, Ki‐Ha Hong, Soohyung Park   +15 more
wiley   +1 more source