Results 121 to 130 of about 920,646 (300)

Engineering Metal‐Pocket Cooperativity in Single‐Atom COF Nanozymes for Selective Cascade Catalysis

open access: yesAdvanced Materials, EarlyView.
A multilevel programming strategy is developed to engineer single‐atom COF nanozymes with tunable metal centers and chiral pockets inspired by heme–pocket cooperativity. This approach enables controlled metal–pocket interplay for asymmetric cascade catalysis, delivering high activity, selectivity, and recyclability in an asymmetric oxidation–aldol ...
Ziping Li   +7 more
wiley   +1 more source

Analysis and Research on Associated Elements Nb, Zr, Ga and Sc in Sedimentary Rare Earth Ores

open access: yesKuangchan zonghe liyong
Through comparative studies of different digestion methods for five ore samples with varying grades collected from adjacent mining areas in Yunnan and Guizhou Provinces, combined with optimization of instrumental parameters and accuracy precision tests ...
Shujun LIU   +4 more
doaj   +1 more source

Enhanced Mechanical Recycling of Polymer Mixtures by a Trifunctional Dynamic Crosslinker

open access: yesAdvanced Materials, EarlyView.
A self‐catalyzed, trifunctional dynamic crosslinker that incorporates three desired properties into one system and is compatible with reactive extrusion can compatibilize waste plastic mixtures containing high Tm polymers and impart the recycled mixtures with superior thermoset properties such as enhanced creep resistance and thermomechanical stability
Xavier Westworth   +4 more
wiley   +1 more source

The electrochemistry of the leaching reactions in the Caron process II. Cathodic processes [PDF]

open access: yes, 2010
The cathodic reactions which are involved in the dissolution of iron alloys in solutions typically used in the Caron Process have been investigated by electrochemical methods.
Nikoloski, A.N., Nicol, M.J.
core  

NH4Cl selective leaching of basic oxygen furnace slag: Optimization study using response surface methodology

open access: yes, 2016
The basic oxygen furnace slag (SL) was selectively leached by NH4Cl. Response surface methodology and the central composite design (CCD) were employed in determining the optimal condition.
Zhang, Lian, Sun, Yong, Zhang, Jing Ping
core   +1 more source

Hierarchical Flexible Ceramic Nanofiber Membrane for Simultaneous Membrane Distillation and Photocatalytic Hydrogen Evolution

open access: yesAdvanced Materials, EarlyView.
A hierarchical flexible ceramic nanofiber membrane integrates a La‐stabilized ZrO2 scaffold with superhydrophobic UiO‐66‐NH2/CdS heterojunctions. The gas–liquid–solid interfacial architecture sustains vapor‐selective desalination, visible‐light charge separation, and rapid H2 extraction, enabling simultaneous freshwater production and photocatalytic ...
Pengfei Lin   +9 more
wiley   +1 more source

The influence of mechanical activation of chalcopyrite on the selective leaching of copper by sulphuric acid [PDF]

open access: yesMetalurgija, 2006
In this paper chalcopyrite, CuFeS2, has been selective leached by H2SO4 as leaching agent (170 g/dm3) in procedure of hydrometallurgical production of copper. Mechanical activation of the chalcopyrite resulted in mechanochemical surface oxidation as well
Achimovičová, M.   +2 more
doaj  

Decoding Synergistic Pathways in Bimetallic MOFs for Advanced Oxidation Processes

open access: yesAdvanced Materials, EarlyView.
This review presents a unified framework linking metal pairing and framework design with electronic structure, redox cycling, oxidant activation, reactive‐species generation, and catalytic performance across photocatalytic and oxidant‐based BMOF‐AOPs. The resulting design principles guide the development of hydrolytically stable and efficient BMOFs for
Karim El‐Naggar   +2 more
wiley   +1 more source

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