Results 21 to 30 of about 907,608 (354)

UV-B induced alteration of oxygen evolving reactions in pea thylakoid membranes as affected by scavengers of reactive oxygen species

Biologia Plantarum, 2014
The effect of UV-B irradiation at temperatures of 22 and 4 °C on flash induced oxygen yields, photochemical activity, and energy transfer in pea thylakoid membranes in the absence and presence of scavengers of reactive oxygen species (ROS) was studied ...
D. Lazarova, D. Stanoeva, A. Popova, D. Vasilev, M. Velitchkova   +4 more
doaj   +1 more source

Recent development of hydrogen evolution, oxygen evolution and oxygen reduction reaction [PDF]

SCIENTIA SINICA Chimica, 2018
In the 21st century, human beings have to face two serious problems, energy crisis and environmental pollution. Therefore, seeking cheap, durable and efficient overall water splitting electrocatalysts which can be comparable to those of state-of-the-art noble metal catalysts is our ultimate goal.
Yaxiao Guo, Changshuai Shang, Jing Li, Erkang Wang   +3 more
openaire   +1 more source

Simple method for isolation of oxygen evolving photosystem 2 core complex free of cytochrome f contamination

Biologia Plantarum, 2010
This communication presents a simple method for isolation of oxygen evolving photosystem 2 (PS 2) core complex by solubilisation of PS 2 membranes with the nonionic detergent octyl-β-D-thioglucopyranoside (OTG).
R. K. Mishra
doaj   +1 more source

The oxygen abundance deficiency in irregular galaxies [PDF]

, 2000
The observed oxygen abundances in a number of irregular galaxies have been compared with predictions of the closed-box model of chemical and photometric evolution of galaxies. Oxygen is found to be deficient with respect to the predicted abundances. This
Ferrini, F., Pilyugin, L. S.
core   +2 more sources

Rotating Disk Electrode Standardization and Best Practices in Acidic Oxygen Evolution for Low-Temperature Electrolysis

Frontiers in Energy Research, 2022
Efforts in oxygen evolution catalyst development have significantly increased and often use rotating disk electrode half-cells to evaluate intrinsic kinetics and screen materials for short-term durability.
Shaun M. Alia, Nemanja Danilovic
doaj   +1 more source

Effects of Rotation on the Minimum Mass of Primordial Progenitors of Pair Instability Supernovae [PDF]

, 2012
The issue of which stars may reach the conditions of electron/positron pair formation instability is of importance to understand the final evolution both of the first stars and of contemporary stars.
Abel, Abel, Appenzeller, Bromm, Chatzopoulos, Chatzopoulos, Chevalier, de Jager, Dufton, E. Chatzopoulos, Ekström, El Eid, El Eid, Fryxell, Greif, Heger, Heger, Heger, Heger, Heger, J. Craig Wheeler, Joggerst, Kasen, Leloudas, Maeder, Maeder, Miller, Ober, Ohkubo, Paxton, Quimby, Scannapieco, Smith, Smith, Spruit, Stringfellow, Timmes, Timmes, Waldman, Yoon, Yoon   +40 more
core   +2 more sources

CeOx as Surface Passivation and Hole Transfer Catalyst Layer Boosting Solar Water Oxidation of ZnFe2O4 Nanorods Photoanode

Advanced Materials Interfaces, 2023
Severe surface photocarrier recombination and poor electronic conductivity are the major factors behind the sluggish photoelectrochemical water oxidation kinetics of the ZnFe2O4 photoanode.
Dipanjan Maity, Debashish Pal, Soham Saha, Pooja Punetha, Debasish Sarkar, Debasis De, Gobinda Gopal Khan, Kalyan Mandal   +7 more
doaj   +1 more source

Interfacial Assemble of Prussian Blue Analog to Access Hierarchical FeNi (oxy)-Hydroxide Nanosheets for Electrocatalytic Water Splitting

Frontiers in Chemistry, 2022
Developing facile methods for the synthesis of active and stable electrocatalysts is vitally important to realize overall water splitting. Here, we demonstrate a practical method to obtain FeNiOOH nanosheets on nickel foam (NF) as bifunctional ...
Jinquan Hong, Jinquan Hong, Jiangquan Lv, Jialing Chen, Lanxin Cai, Mengna Wei, Guoseng Cai, Xin Huang, Xiaoyan Li, Xiaoyan Li, Shaowu Du   +10 more
doaj   +1 more source

Insights Into Highly Improved Solar-Driven Photocatalytic Oxygen Evolution Over Integrated Ag3PO4/MoS2 Heterostructures

Frontiers in Chemistry, 2018
Oxygen evolution has been considered as the rate-determining step in photocatalytic water splitting due to its sluggish four-electron half-reaction rate, the development of oxygen-evolving photocatalysts with well-defined morphologies and superior ...
Xingkai Cui, Xiaofei Yang, Xiaofei Yang, Xiaofei Yang, Xiaozhai Xian, Lin Tian, Hua Tang, Qinqin Liu   +7 more
doaj   +1 more source

Chemical Evolution of the Galactic Bulge as Derived from High-Resolution Infrared Spectroscopy of K and M Red Giants [PDF]

, 2006
We present chemical abundances in K and M red-giant members of the Galactic bulge derived from high-resolution infrared spectra obtained with the Phoenix spectrograph on Gemini-South.
Bessel M. S., Costes M., Edvardsson B., Gratton R. G., Gustafsson B., Katia Cunha, Nissen P. E., Plez B., Udalski A., Udalski A., Verne V. Smith   +10 more
core   +3 more sources