Results 41 to 50 of about 904,424 (390)

Oxygen isotopic ratios in intermediate-mass red giants [PDF]

, 2015
Context. The abundances of the three main isotopes of oxygen are altered in the course of the CNO-cycle. When the first dredge-up mixes the burning products to the surface, the nucleosynthesis processes can be probed by measuring oxygen isotopic ratios ...
Aringer, Bernhard, Hinkle, Kenneth, Lebzelter, Thomas, Nowotny, Walter, Straniero, Oscar   +4 more
core   +2 more sources

Asteroseismology of ZZ Ceti stars with fully evolutionary white dwarf models: I. The impact of the uncertainties from prior evolution on the period spectrum [PDF]

, 2016
ZZ Ceti stars are pulsating white dwarfs with a carbon-oxygen core build up during the core helium burning and thermally pulsing Asymptotic Giant Branch phases.
Althaus, Leandro G., Córsico, Alejandro H., De Gerónimo, Francisco C., Kepler, S. O., Romero, Alejandra D.   +4 more
core   +4 more sources

Electrode reconstruction strategy for oxygen evolution reaction: maintaining Fe-CoOOH phase with intermediate-spin state during electrolysis

Nature Communications, 2022
Computational calculations and experimental studies reveal that the CoOOH phase and the intermediate-spin (IS) state are the key factors for realizing efficient Co-based electrocatalysts for the oxygen evolution reaction (OER).
W. Lee, M. Han, Young-Jin Ko, B. Min, K. Chae, Hyung‐Suk Oh   +5 more
semanticscholar   +1 more source

Recent Progress in Design Strategy of Anode for Seawater Electrolysis

Small Structures, 2023
Direct electrolysis of inexhaustible seawater to generate green hydrogen represents a more environment‐friendly technology relative to freshwater electrolysis. However, current seawater splitting suffers from a low catalytic efficiency and poor operation
Peifang Guo, Da Liu, Renbing Wu
doaj   +1 more source

The Preparation and Electrochemical Properties of Perovskite La0.6Sr0.4CoO3-d for Catalytic Reduction of Oxygen

International Journal of Electrochemical Science, 2017
La0.6Sr0.4CoO3-d powder in nanoscale was produced through flame spray synthesis (FSS), which was a process method of particles in large scale. Then, the catalytic performance of the powder as a bi- functional catalyst towards oxygen evolution reaction ...
Lining Fang
doaj   +1 more source

RuO2 electronic structure and lattice strain dual engineering for enhanced acidic oxygen evolution reaction performance

Nature Communications, 2022
Developing highly active and durable electrocatalysts for acidic oxygen evolution reaction remains a great challenge due to the sluggish kinetics of the four-electron transfer reaction and severe catalyst dissolution.
Yin Qin, Tingting Yu, S. Deng, Xiao-Ye Zhou, Dongmei Lin, Qian Zhang, Zeyu Jin, Danfeng Zhang, Yan‐Bing He, H. Qiu, Lunhua He, Feiyu Kang, Kaikai Li, Tong-Yi Zhang   +13 more
semanticscholar   +1 more source

Copper effect on the protein composition of photosystem II [PDF]

, 2000
The definitive version is available at: http://www.blackwell-synergy.com/doi/full/10.1111/j.1399-3054.2000.1100419.xWe provide data from in vitro experiments on the polypeptide composition, photosynthetic electron transport and oxygen evolution ...
Arellano JB, Arnon DI, Baszynski T, Baszynski T, Bricker TM, Cedeno-Maldonado A, Clijsters H, Droppa M, Enami I, Enami I, Ghanotakis DF, Hsu BD, Jegerschold C, Kralova K, Kuwabara T, Laemmli UK, Lidon FC, Markwell M, Mohanty N, Nelson N, Ouzounidou G, Ouzounidou G, Renganathan M, Renger G, Sabat SC, Samson G, Samuelsson G, Sersen K, Schroder WP, Shioi Y, Shioi Y, Sulkowski E, Vacha F, Vierke G, Yamaguchi N, Yruela I, Yruela I, Yruela I   +37 more
core   +1 more source

Size effects and active state formation of cobalt oxide nanoparticles during the oxygen evolution reaction

Nature Energy, 2022
Water electrolysis is a key technology to establish CO2-neutral hydrogen production. Nonetheless, the near-surface structure of electrocatalysts during the anodic oxygen evolution reaction (OER) is still largely unknown, which hampers knowledge-driven ...
F. Haase, A. Bergmann, T. Jones, J. Timoshenko, Antonia Herzog, H. Jeon, Clara Rettenmaier, B. Cuenya   +7 more
semanticscholar   +1 more source

Oxygen Evolution Reaction in Energy Conversion and Storage: Design Strategies Under and Beyond the Energy Scaling Relationship

Nano-Micro Letters, 2022
Catalytic descriptors for oxygen evolution reaction under scaling relationship are comprehensively reviewed. New oxygen evolution paradigms and design strategies aiming to circumvent the adsorption energy scaling relationship are summarized.
Jiangtian Li
semanticscholar   +1 more source

Hybrid Co3O4@Co9S8 Electrocatalysts for Oxygen Evolution Reaction

Frontiers in Materials, 2019
It is very essential to design an efficient and low-cost electrocatalyst for oxygen evolution reaction (OER). In this work, we report synthesis of Co3O4@Co9S8 heterostructures (Co-HSs) by employing Co3O4 nanowires (Co-NWs) as the precursor on nickel foam
Yong-Li Tong, Yong-Li Tong, Lei Xing, Mei-Zhen Dai, Xiang Wu   +4 more
doaj   +1 more source