Results 51 to 60 of about 58,988 (308)

Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance

ECS Advances
The search for more durable supports for oxygen reduction reaction (ORR) catalyst is a topic of increasing importance in the development of polymer electrolyte fuel cells (PEFCs).
Ryuichi Murase, Masanori Inaba, Yoriko Matsuoka, Yuji Kamitaka, Shuhei Yoshino, Akihiko Koiwai, Tomohiro Takeshita, Kensaku Kodama   +7 more
doaj   +1 more source

Efficient Synthesis of Biodiesel Catalyzed by Chitosan-Based Catalysts

International Journal of Chemical Engineering, 2021
Catalysts play an important role in the preparation of biodiesel. It is of great significance to study catalysts with high efficiency, low cost, and easy preparation.
Anping Wang, Wenxuan Quan, Heng Zhang
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

Hollow carbon spheres as catalyst support for Fischer-Tropsch synthesis: synthesis techniques, optimization strategies, and future research

Fuel Processing Technology
The potential of hollow carbon spheres (HCS) as catalyst supports, particularly in the Fischer-Tropsch synthesis (FTS) process, is examined in this review.
Tshepo Molefe, Yao Jiang, Alice Magubane, Liberty Mguni, Ludwe Sikeyi, Cairong Jiang, Xinying Liu, Yali Yao   +7 more
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

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Advances in catalyst metals and supports for lignin hydrogenation

能源环境保护
Developing technology for the utilization of lignin resources to obtain high-value aromatic chemicals will not only increase the economic value of lignin but also help achieve the "double carbon" goal.
GAO Jie, ZHANG Yitian, LUO Gang, CAO Yang* , ZHANG Shicheng*   +4 more
doaj   +1 more source

Deactivation study of unsupported nano MoS2 catalyst

Carbon Resources Conversion, 2020
The stability of catalyst is of great importance for a long-term operation. In this paper, the hydrodesulfurization stability and deactivation mechanism of unsupported nano MoS2 catalyst was examined with light cycle oil as feedstock under an extreme ...
Haiping Zhang, Hongfei Lin, Ying Zheng
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

High Melting Point of Linear, Spiral Polyethylene Nanofibers and Polyethylene Microspheres Obtained Through Confined Polymerization by a PPM‐Supported Ziegler‐Natta Catalyst

ChemistryOpen, 2020
In this work, different types of polyethylene (linear, spiral nanofibers and microspheres) were obtained via confined polymerization by a PPM‐supported Ziegler‐Natta catalyst.
Dr. Yu Xiao, Dr. Xiying Dai, Dr. Kui Wang, Prof. Guangyuan Zhou   +3 more
doaj   +1 more source