Results 41 to 50 of about 921,356 (330)

Investigation of the possibility to combine bulk and supported catalysts to increase the efficiency of hydrotreating process

Chimica Techno Acta
Hydrotreating catalysts are of great interest for researchers in oil refining. Nowadays, bulk NiMoW catalysts attract significant attention due to much higher activity in target hydrotreating reactions.
Ksenia A. Nadeina, Polina P. Mukhacheva, Yuliya V. Vatutina, Sergey V. Budukva, Maxim A. Panafidin, Evgeniy Yu. Gerasimov, Oleg V. Klimov   +6 more
doaj   +1 more source

Vinylic Addition Polynorbornene in Catalysis [PDF]

, 2019
Vinylic addition polynorbornenes (VA-PNB) result from the insertion polymerization of norbornene or specific norbornene derivatives catalyzed by transition metal com- plexes. The VA-PNB skeleton is completely aliphatic and keeps the bicyclic structure of
Albéniz Jiménez, Ana Carmen, García Loma, Rodrigo   +1 more
core   +2 more sources

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Inverse magnetic catalysis induced by sphalerons

, 2013
The recently discovered inverse magnetic catalysis around the critical temperature indicates that some important information is missing in our current understanding of conventional chiral dynamics of QCD, which is enhanced by the magnetic field.
Chao, Jingyi, Chu, Pengcheng, Huang, Mei
core   +1 more source

Kinetic Resolution in Asymmetric Epoxidation using Iminium Salt Catalysis [PDF]

, 2013
The first reported examples of kinetic resolution in epoxidation reactions using iminium salt catalysis are described, providing up to 99% ee in the epoxidation of racemic cis ...
Allin, Steven M., Appleby, Louise F., Buckley, Benjamin R., Bulman Page, Philip C., Chan, Yohan, Day, David P., Mckenzie, Michael J., Slawin, Alexandra M. Z.   +7 more
core   +1 more source

A working model for cytoplasmic assembly of H/ACA snoRNPs

FEBS Letters, EarlyView.
Dyskerin is the component of nuclear H/ACA ribonucleoproteins (RNPs) endowed with pseudouridine synthase catalytic activity. Two isoforms of human dyskerin have been characterized: the abundant Iso1, mainly nuclear, and the shorter Iso3, mainly cytoplasmic but occasionally imported into nuclei.
Alberto Angrisani, Maria Furia
wiley   +1 more source

Comparison of the HDS DBT reaction using bulk and supported catalysts

Chimica Techno Acta
The paper describes in detail the procedure for the preparation of a granular bulk NiMoW catalyst and a supported reference NiMo/Al2O3 catalyst. Mention is made of investigations of the supported and bulk catalysts by various physico-chemical methods ...
Polina P. Mukhacheva, Yuliya V. Vatutina, Ksenia A. Nadeina, Sergey V. Budukva, Maxim A. Panafidin, Vera P. Pakharukova, Mikhail V. Parfenov, Evgeny Yu. Gerasimov, Oleg V. Klimov, Aleksandr S. Noskov   +9 more
doaj   +1 more source

Single-Atom Alloy Catalysis.

Chemical Reviews, 2020
Single-atom alloys (SAAs) play an increasingly significant role in the field of single-site catalysis and are typically composed of catalytically active elements atomically dispersed in more inert and catalytically selective host metals.
Ryan T. Hannagan, G. Giannakakis, M. Flytzani-Stephanopoulos, E. Sykes   +3 more
semanticscholar   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Selective Electrochemical Reduction of Nitrogen to Ammonia by Adjusting the Three-Phase Interface

Research, 2019
The electrochemical nitrogen reduction reaction (NRR) provides a sustainable and alternative avenue to the Haber-Bosch process for ammonia (NH3) synthesis.
Haiyan Wang, Yuzhuo Chen, Ruxue Fan, Jiadong Chen, Zhe Wang, Shanjun Mao, Yong Wang   +6 more
doaj   +1 more source