Results 121 to 130 of about 29,896 (261)

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

A sub-100 nm thickness flat jet for extreme ultraviolet to soft X-ray absorption spectroscopy

Journal of Synchrotron Radiation
Experimental characterization of the structural, electronic and dynamic properties of dilute systems in aqueous solvents, such as nanoparticles, molecules and proteins, are nowadays an open challenge.
Dario De Angelis, Luca Longetti, Gabriele Bonano, Jacopo Stefano Pelli Cresi, Laura Foglia, Matteo Pancaldi, Flavio Capotondi, Emanuele Pedersoli, Filippo Bencivenga, Marija Krstulovic, Ralf Hendrik Menk, Sergio D'Addato, Stefano Orlando, Monica de Simone, Rebecca A. Ingle, Davide Bleiner, Marcello Coreno, Emiliano Principi, Majed Chergui, Claudio Masciovecchio, Riccardo Mincigrucci   +20 more
doaj   +1 more source

Asymmetric Single‐Atom Catalysts Govern Diffusible and Non‐Diffusible Non‐Radical Pathways for Selective Degradation of Antibiotic Resistance Genes

Advanced Science, EarlyView.
Asymmetric single‐atom metal‐nitrogen‐carbon catalysts modulate the non‐radical pathway during peroxymonosulfate (PMS) activation. A fundamental contrast was revealed between diffusible singlet oxygen (1O2) and non‐diffusible electron‐transfer pathways (ETP) in antibiotic resistance gene (ARG) degradation.
Chen Gao, Jun Sun, Liang Zhang, Litao Lin, Zongfeng Wan, Bingcai Pan, Sheng Tang   +6 more
wiley   +1 more source

High efficiency AlxGa1-xAs/GaAs solar cells: Fabrication, irradiation and annealing effect

, 1996
High efficiency AlxGa1-xAs/GaAs heteroface solar cells have been fabricated by an improved multi-wafer squeezing graphite boat liquid phase epitaxy (LPE) technique, which enables simultaneous growth of twenty 2.3 X 2.3cm(2) epilayers in one run.
X.B. Xiang, Y. Xu, X.B. Liao, Fei XY, Z.P. You, You ZP, B. Li, Xiang XB, X.Y. Fei, Li B, Xu Y, Liao XB   +11 more
core   +1 more source

Single–Atom Iron Sites Enable Enhanced Arsenic Removal From Water Through Synergistic Adsorption–Oxidation

Advanced Science, EarlyView.
Single–atom iron anchored on nitrogen–doped porous biochar exhibited ultra–efficient performance, exceptional environmental resilience, and integrated adsorption–oxidation functionality. The multifunctional architecture of the support and the unparalleled reactivity of single–atom iron underpinned the cooperative adsorption and oxidation of As(III ...
Tao Sun, Chao Wang, Shihang Wu, Xiaojia Zhou, Penggang Pei, Huijuan Yu, Yun Zhang, Qingqing Huang, Yuebing Sun   +8 more
wiley   +1 more source

The study on high efficient AlxGa1-xAs/GaAs solar cells

, 2001
The investigation of AlxGa1-xAs/GaAs solar cells is carried out by means of both metalorganic chemical vapor deposition (MOCVD) and liquid-phase epitaxial (LPE) technique.
Du WH, Chang XL, Xiang XB, Yuan HR, Xiang XB,Chinese Acad Sci,Inst Semicond,Lab Semicond Mat Sci,Beijing 100083,Peoples R China.   +4 more
core  

Optical and Electrical Properties of Bulk-grown Ternary InxGa1?xAs

, 2011
Bulk ternary InxGa1−xAs polycrystals were grown using the vertical Bridgman technique. The optical and electrical properties of these bulk InxGa1−xAs were investigated as a function of indium mole fraction from 0.75 to 0.99 by using photoluminescence (PL)
G. Rajagopalan, S. Guha, Mee-YI Ryu, L. P. Gonzalez, Guha, Shekhar, Y. K. Yeo, Ryu, Mee-Yi, A. C. Bergstrom, Hengehold, Robert L., Wei, Jean, Gonzalez, Leonel P., R. L. Hengehold, Yeo, Yung Kee, Rajagopalan, G., J. W. Wei, Bergstrom, A. C.   +15 more
core   +1 more source

A pH‐Switchable Cerium Single‐Atom Enzyme for Peri‐Implantitis Therapy via JAK‐STAT Signaling Axis‐Mediated Macrophage Reprogramming

Advanced Science, EarlyView.
A pH‐switchable cerium single‐atom enzyme is developed for stage‐specific peri‐implantitis therapy. Acidic conditions trigger antibacterial peroxidase‐like activity, whereas neutral conditions activate an antioxidant superoxide dismutase ‐ and catalase ‐like enzymatic relay. This microenvironment‐adaptive catalytic strategy suppresses the IL‐6/JAK‐STAT
Xiaomin Xia, Haojie Wu, Xingyun Li, Lining Liu, Kaiqing Song, Jinpei Cui, Jie Liu, Jiaxuan Yin, Emtiaz Ahmed, Yusuke Yamauchi, Xue Li   +10 more
wiley   +1 more source

Binding energy of positively and negatively charged excitons in GaAs/AlxGa1-xAs quantum wells

, 2002
Using a simple two-parameter wavefunction, we calculate variationally the binding energy of positively and negatively charged excitons in GaAs/AlxGa1-xAs quantum wells for well widths from 10 to 300Angstrom.
Zhang SF, Liu JJ,Hebei Normal Univ,Dept Phys,Shijiazhuang 050016,Peoples R China., Liu JJ, Yang GC, Li SS   +4 more
core  

6.1% Volumetric Negative Thermal Expansion Induced by the Reversible Reconstructive Phase Transition in Pb‐Free Bi1−xLnxCoO3 (Ln: Lanthanoid)

Advanced Science, EarlyView.
Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai, Kazuki Takahashi, Shogo Wakazaki, Takumi Nishikubo, Jun Miyake, Takehiro Koike, Teppei Nagase, Takafumi Yamamoto, Kano Hatayama, Masaichiro Mizumaki, Masaki Azuma   +10 more
wiley   +1 more source