Results 101 to 110 of about 84,560 (286)

Photoresponsive Adaptive Reconfiguration of Single‐Atom Interface With Intermittent Light and Soft Ionic Lattices

open access: yesAdvanced Materials, EarlyView.
We present a photoresponsive platform that integrates SACs with halide perovskite supports, turning perovskite ion mobility, typically a stability concern, into a functional mechanism for light‐regulated self‐repair and reversible atomic reconfiguration. Adaptive metal‐support interactions are established through bandgap‐funnel engineering and the soft
Li Yu   +10 more
wiley   +1 more source

Determination of Sulfur in High-sulfur Bauxite by Alkali Fusion-Inductively Coupled Plasma-Optical Emission Spectrometry

open access: yesYankuang ceshi, 2017
When Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) is used to analyze the sulfur content of high-sulfur (S≤8%) bauxite, commonly used acid dissolving and alkali fusion methods cannot oxidize sulfur completely, leading to a false ...
HU Xuan, SHI Lei, ZHANG Wei-hua
doaj   +1 more source

Access and in situ Growth of Phosphorene-Precursor Black Phosphorus

open access: yes, 2014
Single crystals of orthorhombic black phosphorus can be grown by a short way transport reaction from red phosphorus and Sn/SnI4 as mineralization additive.
Eckstein, Nadine   +8 more
core   +1 more source

Comparison of MRI properties between multimeric DOTAGA and DO3A gadolinium-dendron conjugates [PDF]

open access: yes, 2019
The inherent lack of sensitivity of MRI needs the development of new Gd contrast agents in order to extend 20Hz,37%, the application of this technique to cellular imaging.
Boutry, Sébastien   +13 more
core   +4 more sources

Diverse Cation Exchange in Layered Titanate Nanostructures for Tailored Catalysis

open access: yesAdvanced Materials, EarlyView.
H+(H3O+)‐intercalated layered titanate enables stable intercalation of 42 single‐metal and multication combinations. Alkali‐metal intercalation tunes Rh charge density, yielding an efficient propylene hydroformylation catalyst. These results establish a generalizable intercalation platform for rational catalyst design and provide a library supporting ...
Hyoseok Kim   +15 more
wiley   +1 more source

Determination of As, Sb and Bi in Soil and Stream Sediment by a Self-developed Hydride Generation System Coupled with Inductively Coupled Plasma-Optical Emission Spectrometry

open access: yesYankuang ceshi, 2015
Hydride Generation (HG) combined with Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) has excellent analytical sensitivity. However, the instable chemical reactions of HG may cause unsatisfactory analytical precision.
WU Zheng, XIONG Ying, WANG Long-shan
doaj   +1 more source

Ashes for organic farming [PDF]

open access: yes, 2013
Nowadays only eight percent of the cultivated field area is used for organic farming. The Ministry of Agriculture and Forestry has published the guidelines for the program of organic farming to diversify the supply and the consumption of organic food ...
Heinonen, M.   +3 more
core  

Improved analytical method for chemical analysis of cast irons. Application to castings with chunky graphite [PDF]

open access: yes, 2011
Chunky graphite is a particular form of graphite degeneracy that appears in the centre of large iron castings, with a well-defined transition from the outer unaffected area and the inner affected one.
Asenjo, Iker   +4 more
core   +2 more sources

Bulk and Surface Dual‐Modification for Stabilizing RuO2 Anode in 2 A cm−2 PEMWE Operation

open access: yesAdvanced Materials, EarlyView.
The high‐current‐density stability of the RuO2‐based anode in PEMWE could be taken care of by a bulk and surface dual modification strategy developed in this work, where Cr doping modulates the Ru valence state in the bulk phase, suppressing Ru overoxidation, whereas Si modification stabilizes the reaction interface by inhibiting catalyst ...
Jiayi Tang   +5 more
wiley   +1 more source

Comparação do teor de minerais em vinhos do Vale do Submédio São Francisco, Brasil. [PDF]

open access: yes, 2012
Neste trabalho teve-se como objetivo analisar 28 minerais por espectrometria de emissão ótica com plasma acoplado indutivamente (ICP-OES) em 48 amostras de vinhos provenientes de três vinícolas desta ...
CONTE, C.   +5 more
core  

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