Results 61 to 70 of about 2,049,740 (304)

Electrocatalytic Behavior of Pt/WO3 Composite Layers Formed Potentiodynamically on Tungsten Surfaces

International Journal of Electrochemical Science, 2017
The Pt/WO3 composites, in a form of thin layer on W support, were prepared by potentiodynamic polarization of either bare or oxide covered tungsten disc in hexachloroplatinic acid solutions. Both the Pt loading and the thickness of WO3 interlayer between
Igor A. Pašti, Nemanja M. Gavrilov, Slavko V. Mentus   +2 more
doaj   +1 more source

Unveiling the Axial Hydroxyl Ligand on FeN4C Electrocatalysts and Its Impact on the pH‐Dependent Oxygen Reduction Activities and Poisoning Kinetics

Advanced Science, 2020
FeNC materials have shown a promising nonprecious oxygen reduction reaction (ORR) electrocatalyst yet their active site structure remains elusive.
Xin Yang, Dongsheng Xia, Yongqiang Kang, Hongda Du, Feiyu Kang, Lin Gan, Jia Li   +6 more
doaj   +1 more source

Gram-Scale Synthesis of Carbon-Supported Sub-5 nm PtNi Nanocrystals for Efficient Oxygen Reduction

Metals, 2022
The preparation of a high performance and durability with low-platinum (Pt) loading oxygen reduction catalysts remains a challenge for the practical application of fuel cells.
Minli Wang, Xu Chen, Wenwen Xu, Zhongfeng Wang, Peilei He, Zhiyi Lu   +5 more
doaj   +1 more source

Theoretical Study of Solvent Effects on the Platinum-Catalyzed Oxygen Reduction Reaction [PDF]

, 2010
We report here density functional theory (DFT) studies (PBE) of the reaction intermediates and barriers involved in the oxygen reduction reaction (ORR) on a platinum fuel cell catalyst.
Goddard, William A., III, Liu, Yi, Merinov, Boris V., Sha, Yao, Yu, Ted H.   +4 more
core   +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

Short Communication: Electrochemical Detection of Dissolved Oxygen in Water using a Composite of Graphene oxide and Platinum Nanoparticles

International Journal of Electrochemical Science, 2015
In the present study, we report the electrochemical detection of dissolved oxygen in neutral media using graphene oxide-platinum nanoparticles (GO-PtNPs) composite modified glassy carbon electrode (GCE).
Duo-Han Zhao, Selvakumar Palanisamy, Shen-Ming Chen   +2 more
doaj   +1 more source

Oxygen Reduction Activity of Carbon Nitride Supported on Carbon Nanotubes

, 2012
Fuel cells offer an alternative to burning fossil fuels, but use platinum as a catalyst which is expensive and scarce. Cheap, alternative catalysts could enable fuel cells to become serious contenders in the green energy sector.
Islam, Nazrul Md, Kakimoto, Masa-aki, Kuroki, Shigeki, Lyth, Stephen Matthew, Miyata, Seizo, Nabae, Yuta   +5 more
core   +1 more source

How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode-Electrolyte Interface when Addressing Oxygen Redox. [PDF]

, 2020
Sensitivity to the "bulk" oxygen core orbital makes hard X-ray photoelectron spectroscopy (HAXPES) an appealing technique for studying oxygen redox candidates. Various studies have reported an additional O 1s peak (530-531 eV) at high voltages, which has
Amatucci, Glenn G, Chung, Hyeseung, Faenza, Nicholas V, Lebens-Higgins, Zachary W, Lee, Tien-Lin, Li, Yixuan, McCloskey, Bryan D, Meng, Ying Shirley, Pereira, Nathalie, Piper, Louis FJ, Rana, Jatinkumar, Rodolakis, Fanny, Whittingham, M Stanley, Yang, Wanli, Zuba, Mateusz J   +14 more
core  

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Electrocatalysis of fuel cell reactions: Investigation of alternate electrolytes [PDF]

Oxygen reduction and transport properties of the electrolyte in the phosphoric acid fuel cell are studied. A theoretical expression for the rotating ring-disk electrode technique; the intermediate reaction rate constants for oxygen reduction on platinum ...
Chang, H. H., Chin, D. T., Hsueh, K. L.
core   +4 more sources