Results 81 to 90 of about 225,525 (289)

Surface properties of SmB6 from x-ray photoelectron spectroscopy

, 2014
We have investigated the properties of cleaved SmB$_6$ single crystals by x-ray photoelectron spectroscopy. At low temperatures and freshly cleaved samples a surface core level shift is observed which vanishes when the temperature is increased.
Büchner, B., Filipov, V. B., Heming, N., Inosov, D. S., Knupfer, M., Koitzsch, A., Krause, S., Shitsevalova, N. Y., Treske, U.   +8 more
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

[Cu3(C6Se6)]n: The First Highly Conductive 2D π–d Conjugated Coordination Polymer Based on Benzenehexaselenolate

Advanced Science, 2019
Nanocrystals of a 2D π–d conjugated copper bis(diselenolene) coordination polymer (Cu‐BHS, BHS = benzenehexaselenolate) are synthesized via a simple homogeneous reaction between cupric ions and benzenehexaselenol (H6BHS).
Yutao Cui, Jie Yan, Zhijun Chen, Jiajia Zhang, Ye Zou, Yimeng Sun, Wei Xu, Daoben Zhu   +7 more
doaj   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

Advanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang, Muhammad Adib Abdillah Mahbub, Bashir Eid, Thomas Quast, Jian Zhang, Ridha Zerdoumi, Xin Wang, Sabine Seisel, Wangcheng Zhan, Wolfgang Schuhmann   +9 more
wiley   +1 more source

Trifluoromethylation of graphene

APL Materials, 2014
We demonstrate trifluoromethylation of graphene by copper-catalyzed free radical reaction. The covalent addition of CF3 to graphene, which changes the carbon atom hybridization from sp2 to sp3, and modifies graphene in a homogeneous and nondestructive ...
Lin Zhou, Lushan Zhou, Xi Wang, Jingwen Yu, Mingmei Yang, Jianbo Wang, Hailin Peng, Zhongfan Liu   +7 more
doaj   +1 more source

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

X-ray photoelectron spectroscopy and magnetism of Al2MnNi and Al5Mn3Ni2

Moldavian Journal of the Physical Sciences, 2007
The electronic and magnetic properties of Al2MnNi and Al5Mn3Ni2 alloys, obtained from X–ray photoelectron spectroscopy and magnetic measurements, are reported.
Neumann, M
doaj  

Electronic structure of Pr2MnNiO6 from x-ray photoemission, absorption and density functional theory

, 2017
The electronic structure of double perovskite Pr2MnNiO6 is studied using core x-ray photoelectron spectroscopy and x-ray absorption spectroscopy. The 2p x-ray absorption spectra show that Mn and Ni are in 2+ and 4+ states respectively.
Balasubramanian, Padmanabhan, de Groot, Frank MF, Elizabeth, Suja, Gupta, Mukul, Joshi, Shalik Ram, Maitre, Tulika, Malik, Vivek, Maurya, Satyendra, Ray, Avijeet, Singh, Amit Kumar, Singh, Ankita, Varma, Shikha, Yadav, Ruchika   +12 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Laboratory hard X-ray photoelectron spectroscopy of La$_{1-x}$Sr$_{x}$MnO$_{3}$

, 2015
A laboratory hard X-ray photoelectron spectroscopy (HXPS) system equipped with a monochromatic Cr K$\alpha$ ($h\nu = 5414.7$ eV) X-ray source was applied to an investigation of the core-level electronic structure of La$_{1-x}$Sr$_x$MnO$_3$.
Hishida, Tomoko, Ikenaga, Eiji, Kobata, Masaaki, Kobayashi, Keisuke, Ohbayashi, Kazushige, Okawa, Mario, Saitoh, Tomohiko, Sugiyama, Takeharu   +7 more
core   +1 more source