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Search results (50 of 88)

Deposition of gold nanoparticles on ZnO and their catalytic activity for hydrogenation applications

2012
Eva Castillejos López, Esteban Gallegos Suárez, María Belén Bachiller Baeza, Bacsa Revathi , Phillipe Serp , Antonio Guerrero Ruiz, Inmaculada Rodríguez Ramos
Catalysis Communications
Gold nanoparticles have been deposited on zinc oxide by deposition&nda...

Stabilization of a highly active but unstable alcohol dehydrogenase from yeast using immobilization and post-immobilization techniques.

2012
PUBLICACIONES
Process Biochemistry,
The alcohol dehydrogenase (ADH) from Baker's yeast is very active ...

Chiral distributions of dopants in microporous materials: A new concept of chirality

2012
Luis Gómez-Hortiguela Sáinz, Furio Corà , J. Perez-Pariente
Microporous Mesoporous Materials
This work not only pre-dates the recent proposal indicating that a new...

Enhanced direct electron transfer between laccase and hierarchical carbon microfibers/carbon nanotubes composite electrodes. Comparison of three enzyme immobilization methods

2012
María Cristina Gutiérrez Sánchez, Wenzhi Jia , Beyl Yvonne , Marcos Pita Martínez, Wolfgang Schuhmann , Antonio López de Lacey, Leonard Stoica
Electrochimica ActaThree immobilization protocols were investigated with respect to direct electron transfer between hierarchical carbon microfibers/carbon nanotubes composite material on graphite rod electrodes and Trametes hirsuta laccase. Immobilization was done by covalent binding of laccase to aminophenyl-modified electrodes via amide-bond formation with carboxylic acid residues or imino-bond formation with aldehyde groups introduced by oxidation of sugar residues of the enzyme’s glycosylation shell. Moreover, immobilization was achieved by adsorbing laccase to electrodes hydrophilized with pyrene-hexanoic acid. High current densities for biocatalytic oxygen reduction were obtained for all immobilization strategies. The formation of the imino bonds let to the binding of laccase in close to 100% direct electron transfer configuration and consequently to the highest oxygen reduction currents.
Three immobilization protocols were investigated with respect to direc...

Influence of H2S on ZrO2-based gasification gas clean-up catalysts: MeOH temperature-programmed reaction study

2012
Søren Birk Rasmussen , Miguel A. Bañares
Applied Catalysis B: Environmental
Addition of H2S in the gasification gas stream has been found to impro...
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