Results 51 to 60 of about 191,232 (317)

Preparation and characterization of Ti0.7Sn0.3O2 as catalyst support for oxygen reduction reaction

, 2014
Sn-doped TiO2 nanoparticles with high surface area of 125.7 m(2).g(-1) are synthesized via a simple one-step hydrothermal method and explored as the cathode catalyst support for proton exchange membrane fuel cells.
Gao, Yuan, Hou, Ming, 邵志刚, 侯明, Shao, Zhigang, Zhang, Changkun, Qin, Xiaoping, Yi, Baolian   +7 more
core   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Ubiquitination of secretory granules promotes their crinophagic degradation in Drosophila

FEBS Letters, EarlyView.
Ubiquitination of secretory granules in Drosophila larval salivary glands is a critical molecular trigger for crinophagy, the lysosomal degradation of unreleased, or low‐quality granules. The E3 ubiquitin ligase Cnot4 is recruited to the surface of secretory granules to induce crinophagy.
Tamás Csizmadia, Anna Dósa, Asha Kiran Maddali, András Jipa, Hajnalka Laczkó‐Dobos, Péter Lőw, Gábor Juhász   +6 more
wiley   +1 more source

Chemical Vapour Deposition of CNTs Using Structural Nanoparticle Catalysts

, 2010
This work examines the recent developments in non-traditional CCVD of CNTs with a view to determine the essential role of the catalyst in nanotube growth.
Ashburn, Peter, G. N., B. Mazumder, Smith, D.C., Hector, A.L., C. H. de Groot, de Groot, Kees, Uchino, Takashi, D. C., Hutchinson, J.L., Ayre, G.N., Mazumder, M, J. L., T. Uchino, A. L., P. Ashburn   +15 more
core   +1 more source

The Influence of Gold Nanoparticles Addition on Sugarcane Leaves-Derived Silica Xerogel Catalyst for the Production of Biodiesel

Gels
Biodiesel was produced via transesterification of canola oil in the presence of a silica xerogel catalyst with deposited gold nanoparticles. The silica-gold catalyst was produced in situ, where gold metal was added to a sodium silicate solution ...
Ncamisile Nondumiso Maseko, Dirk Enke, Pius Adewale Owolawi, Samuel Ayodele Iwarere, Oluwatobi Samuel Oluwafemi, Jonathan Pocock   +5 more
doaj   +1 more source

The effect of catalyst layer design on catalyst utilization in PEMFC studied via stochastic reconstruction method

Energy and AI, 2023
Catalyst utilization is an important determinant of proton exchange membrane fuel cell performance, and increasing the catalyst utilization is one of the most critical approaches to reducing the catalyst loading in PEMFC.
Congfan Zhao, Shu Yuan, Xiaojing Cheng, Zhifeng Zheng, Jia Liu, Jiewei Yin, Shuiyun Shen, Xiaohui Yan, Junliang Zhang   +8 more
doaj   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Highly Active Platinum Single-Atom Catalyst grafted onto 3D Carbon Cloth Support for the Electrocatalytic Hydrogen Evolution Reaction

, 2022
Platinum single-atom catalysts (PtSACs) on 3D support are emerging as the new frontier in catalysis due to their atom-economy, outstanding performance, and the advantage to bridge the gap between homogeneous and heterogeneous catalysis. Here we report on
Mats R., Andersson, Tanglaw, Roman, Po-Wei, Yu, Yanting, Yin, Christopher T., Gibson, Xun, Pan, Sait, Elmas, Gunther G., Andersson   +7 more
core   +1 more source

Research progress on the treatment of phenol containing wastewater by heterogeneous catalyst ozonation

Gongye shui chuli
Catalytic ozonation process has the advantages of simple operation，high oxidation efficiency and low secondary pollution in the advanced treatment of phenol containing organic wastewater.
XIA Longxiang, HE Haodong, WU Dengfeng
doaj   +1 more source

CROTONALDEHYDE HYDROGENATION ON Rh SUPPORTED CATALYSTS

Boletín de la Sociedad Chilena de Química, 2000
The vapor-phase hydrogenation of crotonaldehyde on Rh supported catalysts has been studied. The effect of some variables of preparation in catalysts prepared by the sol-gel and impregnation methods on the surface and catalytic properties were analyzed.
REYES, P., AGUIRRE, M., PECCHI, G., FIERRO, J.L.G.   +3 more
openaire   +6 more sources