Results 111 to 120 of about 134,100 (299)
Remote control of diffusion from magnetic hollow silica microspheres [PDF]
, 2013 Composite hollow core silica/iron oxide microparticles with the ability to store an encapsulated payload and release a defined quantity “on demand” by the application of a radiofrequency magnetic field were prepared.
Kovačík, Pavel +2 more
core +1 more source
The Importance of Metal‐Organic Framework Linker Atoms for CO2 Reduction: A DFT Study
Advanced Science, EarlyView.Using DFT, we examine the role of linker atoms in CO2 reduction on copper‐based metal organic frameworks (Cu MOFs). Our calculations reveal that linker atoms may serve as both CO2 and H‐shuttling sites and suggest linker electrostatics as a descriptor for linker activity. ABSTRACT Although the metal within the secondary building unit of a metal‐organic
Ugochukwu Nwosu, Samira Siahrostami
wiley +1 more source
Hidrólise de celulose por catalisadores mesoestruturados NiO-MCM-41 e MoO3-MCM-41
Química Nova, 2012 This study was carried out to synthesize, characterize and evaluate the application of mesoestruturated catalysts MCM-41, 5%MoO3-MCM-41 and 5%NiO-MCM-41 in the hydrolysis of microcrystalline cellulose.
Adriano Sant'Ana Silva +4 more
doaj +1 more source
Mesoporous materials as host for an entrapped enzyme
, 2008 Three mesoporous materials, silica, alumina and titania, were used as host for a lipase and the enzyme-loaded particles were employed as catalyst for esterification of caprylic acid using a mixture of glycerol and water as reaction medium.
Holmberg, Krister, +5 more
core +1 more source
Advanced Science, EarlyView.This study uncovers an unusual RNAi pathway in the rhizarian pathogen Plasmodiophora brassicae. In the absence of Dicer, a Drosha‐like RNase III protein supports the biogenesis of predominant 21‐nt small RNAs, and two Argonaute proteins mediate small RNA‐guided silencing.
Xiong Zhang +13 more
wiley +1 more source
The Effect of Alkaline Treatment to the Structure of ZSM5 Zeolites
Makara Seri Sains, 2012 Hierarchical zeolites combining micro- and mesoporosity were prepared using desilication method in alkaline solution of NaOH 0.2 M on two types of ZSM5: ”template free” commercial ZSM5 (Si/Al 8.62) and ‘templated’ as-synthesized ZSM5 (Si/Al 25).
Savitri Octaviani
doaj
Synergy of Pd Clusters and TiO2 {101} for Photocatalytic Nonoxidative Coupling of Methane
Advanced Science, EarlyView.This study presents photocatalytic nonoxidative coupling of methane over cal‐Pd0.05/TiO2{101}, achieving near 100% selectivity and long‐term stability under mild flow conditions through synergistic single atoms and clusters catalysis. ABSTRACT Photocatalytic nonoxidative coupling of methane (NOCM) offers a sustainable route to valorize CH4 into C2 ...
Jianlong Yang +2 more
wiley +1 more source
Crystallography and porosity effects of CO conversion on mesoporous CeO2
, 2004 Catalytic properties and thermal stability were studied for samples of mesoporous ceria with different BET specific surface area. The catalytic conversion of carbon monoxide to carbon dioxide and how thermal treatments of the catalysts influence the ...
Wallenberg, Reine, +3 more
core +1 more source
Advanced Science, EarlyView.A rational architectural design of hierarchical, CNT‐interwoven hollow carbon microclusters unlocks and stabilizes a unique monoclinic Co3Se4‐mediated conversion–insertion pathway for potassium storage. This structural confinement effectively guides the reaction kinetics and accommodates severe mechanical strain.
Ho Rim Kim +8 more
wiley +1 more source
Cationic Lattice Coupling Enables Efficient FAPbI3 Perovskite Solar Cells
Small StructuresFAPbI3 is an ideal recipe for single‐junction perovskite solar cells owing to the ideal bandgap, exceptional optical absorption, and weak exciton binding energy. However, charge transport and extraction in polycrystalline FAPbI3 films are always hindered
Yanju Wang +10 more
doaj +1 more source