scholarly journals Valence Alignment of Mixed Ni–Fe Hydroxide Electrocatalysts through Preferential Templating on Graphene Edges for Enhanced Oxygen Evolution

ACS Nano ◽  
2020 ◽  
Vol 14 (9) ◽  
pp. 11327-11340
Author(s):  
Constantine Tsounis ◽  
Xunyu Lu ◽  
Nicholas M. Bedford ◽  
Bijil Subhash ◽  
Lars Thomsen ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Fe Hydroxide

scholarly journals Ultrathin Co–Fe hydroxide nanosheet arrays for improved oxygen evolution during water splitting

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 22818-22824 ◽  
Author(s):  
Tingting Zhou ◽  
Zhen Cao ◽  
Heng Wang ◽  
Zhen Gao ◽  
Long Li ◽  
...  
Keyword(s):  
Surface Area ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Three Dimensional ◽  
Fe Doping ◽  
Nanosheet Arrays ◽  
Fe Hydroxide

The Fe-doping of hierarchical Co hydroxide nanosheet arrays (CoyFe1−y(OH)x NSAs) integrated on a three-dimensional electrode is shown to contribute to both increasing the available surface area and number of active sites.

Ultrafast Electrodeposition of Ni−Fe Hydroxide Nanosheets on Nickel Foam as Oxygen Evolution Anode for Energy-Saving Electrolysis of Na2 CO3 /NaHCO3

2017 ◽  
Vol 4 (5) ◽  
pp. 1044-1050 ◽  
Author(s):  
Yanzhi Sun ◽  
Chunxiang Liu ◽  
Linying Zhang ◽  
Pingyu Wan ◽  
Shuxian Zhuang ◽  
...  
Keyword(s):  
Energy Saving ◽  
Oxygen Evolution ◽  
Nickel Foam ◽  
Fe Hydroxide

Synergetic modulation of the electronic structure and hydrophilicity of nickel–iron hydroxide for efficient oxygen evolution by UV/ozone treatment

2020 ◽  
Vol 8 (27) ◽  
pp. 13437-13442
Author(s):  
Ying Pan ◽  
Yanfang Wu ◽  
H. Alex Hsain ◽  
Ran Su ◽  
Claudio Cazorla ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Oxygen Evolution ◽  
Iron Hydroxide ◽  
Ozone Treatment ◽  
Nickel Iron ◽  
Fe Hydroxide ◽  
Uv Ozone

Enhanced OER performance of Ni(Fe) hydroxide through UV/ozone treatment.

An amorphous trimetallic (Ni–Co–Fe) hydroxide-sheathed 3D bifunctional electrode for superior oxygen evolution and high-performance cable-type flexible zinc–air batteries

2020 ◽  
Vol 8 (11) ◽  
pp. 5601-5611 ◽  
Author(s):  
Simeng Li ◽  
Xuhuan Yang ◽  
Siyuan Yang ◽  
Qiongzhi Gao ◽  
Shengsen Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Oxygen Evolution ◽  
High Performance ◽  
Highly Efficient ◽  
Fe Hydroxide ◽  
Zinc Air Batteries

A 3D integrated bifunctional electrode of NiCo2O4@NiCoFe–OH nanoarrays is demonstrated for highly efficient oxygen evolution and flexible solid-state zinc–air batteries.

Rational prediction of multifunctional bilayer single atom catalysts for the hydrogen evolution, oxygen evolution and oxygen reduction reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20413-20424
Author(s):  
Riming Hu ◽  
Yongcheng Li ◽  
Fuhe Wang ◽  
Jiaxiang Shang
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Single Atom ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions

Bilayer single atom catalysts can serve as promising multifunctional electrocatalysts for the HER, ORR, and OER.

Towards a Design of Active Oxygen Evolution Catalysts: Insights from Automated Density Functional Theory Calculations and Machine Learning

2019 ◽  
Author(s):  
Seoin Back ◽  
Kevin Tran ◽  
Zachary Ulissi
Keyword(s):  
Machine Learning ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Density Functional ◽  
Chemical Space ◽  
Density Functional Theory Calculations ◽  
Catalyst Design ◽  
Transition Metal Catalysts ◽  
Oxide Materials ◽  
Design Strategies

<div> <div> <div> <div><p>Developing active and stable oxygen evolution catalysts is a key to enabling various future energy technologies and the state-of-the-art catalyst is Ir-containing oxide materials. Understanding oxygen chemistry on oxide materials is significantly more complicated than studying transition metal catalysts for two reasons: the most stable surface coverage under reaction conditions is extremely important but difficult to understand without many detailed calculations, and there are many possible active sites and configurations on O* or OH* covered surfaces. We have developed an automated and high-throughput approach to solve this problem and predict OER overpotentials for arbitrary oxide surfaces. We demonstrate this for a number of previously-unstudied IrO2 and IrO3 polymorphs and their facets. We discovered that low index surfaces of IrO2 other than rutile (110) are more active than the most stable rutile (110), and we identified promising active sites of IrO2 and IrO3 that outperform rutile (110) by 0.2 V in theoretical overpotential. Based on findings from DFT calculations, we pro- vide catalyst design strategies to improve catalytic activity of Ir based catalysts and demonstrate a machine learning model capable of predicting surface coverages and site activity. This work highlights the importance of investigating unexplored chemical space to design promising catalysts.<br></p></div></div></div></div><div><div><div> </div> </div> </div>

S Doping Optimized Intermediate Energetics of FeCoOOh for Enhanced Oxygen Evolution Catalytic Activity

2020 ◽  
Author(s):  
Ding Yuan ◽  
Yuhai Dou ◽  
Chun-Ting He ◽  
Linping Yu ◽  
Li Xu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Evolution

ALGAE AND PROGRESS IN PHOTOSYNTHESIS RESEARCH I-Oxygen evolution and carbon fixation

2000 ◽  
Vol 1 (1) ◽  
pp. 235-244
Author(s):  
Ahmed Hamad ◽  
Mohamed Osman ◽  
Refaat Abdel-Basset
Keyword(s):  
Oxygen Evolution ◽  
Carbon Fixation ◽  
Photosynthesis Research

Effect of various cations on the initial rate of formation of peroxodisulphates

1980 ◽  
Vol 45 (8) ◽  
pp. 2272-2282 ◽  
Author(s):  
Jan Balej ◽  
Martin Kadeřávek
Keyword(s):  
Sulphuric Acid ◽  
Oxygen Evolution ◽  
Anodic Polarization ◽  
Initial Rate ◽  
Degree Of Conversion ◽  
Polarization Curves ◽  
Mixed Solutions ◽  
Low Degree ◽  
Partial Polarization

Preparation of peroxodisulphates by electrolysis of mixed solutions of sulphuric acid and various sulphates was studied at low degree of conversion; the partial polarization curves of peroxodisulphate formation and of oxygen evolution obtained from the overall anodic polarization curves and current yields of the principal anodic processes were examined. The mechanism of the effect of various cations on the rate of anodic formation of peroxodisulfates is discussed.

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