A microwell array-based approach for studying single nanoparticle catalysis with high turnover frequency

2021 ◽  
Vol 155 (7) ◽  
pp. 071101
Author(s):  
Jia Gao ◽  
Hua Su ◽  
Wei Wang
Keyword(s):  
Turnover Frequency ◽  
High Turnover ◽  
Single Nanoparticle ◽  
Microwell Array ◽  
Nanoparticle Catalysis

Monodispersed palladium–cobalt alloy nanoparticles assembled on poly(N-vinyl-pyrrolidone) (PVP) as a highly effective catalyst for dimethylamine borane (DMAB) dehydrocoupling

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24097-24102 ◽  
Author(s):  
Betül Çelik ◽  
Yunus Yıldız ◽  
Hakan Sert ◽  
Esma Erken ◽  
Yagmur Koşkun ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Catalytic Performance ◽  
Vinyl Pyrrolidone ◽  
Alloy Nanoparticles ◽  
Turnover Frequency ◽  
Cobalt Alloy ◽  
High Turnover ◽  
Effective Catalyst ◽  
Dimethylamine Borane ◽  
Very High

Monodispersed PdCo@PVP NPs showed record catalytic activity, giving the best catalytic performance yet with a very high turnover frequency.

CoC2O4·2H2O derived Co3O4 nanorods array: a high-efficiency 1D electrocatalyst for alkaline oxygen evolution reaction

2018 ◽  
Vol 54 (12) ◽  
pp. 1533-1536 ◽  
Author(s):  
Yicheng Wei ◽  
Xiang Ren ◽  
Hongmin Ma ◽  
Xu Sun ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Turnover Frequency ◽  
High Turnover ◽  
Nanorods Array ◽  
Co3o4 Nanorods ◽  
Catalyst Electrode

Self-standing Co3O4 nanorods array on Co foil as a 1D OER catalyst electrode, only needs overpotential of 308 mV to drive 15 mA cm−2 in 1.0 M KOH, with good long-term electrochemical durability and a high turnover frequency.

Electrochemical water oxidation by a copper complex with N4-donor ligand at neutral condition

2021 ◽  
Author(s):  
Junqi Lin ◽  
Xin Chen ◽  
Nini Wang ◽  
Shanshan Liu ◽  
Zhijun Ruan ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Copper Complex ◽  
Water Oxidation ◽  
Neutral Condition ◽  
Turnover Frequency ◽  
High Turnover ◽  
Donor Ligand ◽  
Redox Active

Herein, electrochemical water oxidation catalyzed by a copper(II) complex [CuII(H2L)](NO3)2 with redox-active salophen-like N4-donor ligand N,N′-bis-(1H-imidazol-4-yl)methylidene-o-phenylenediamine is demonstrated. Oxygen evolution with high turnover frequency of 11.09 s-1 and low onset...

scholarly journals Improved catalytic effect and metal nanoparticle stability using graphene oxide surface coating and reduced graphene oxide for hydrogen generation from ammonia–borane dehydrogenation

2020 ◽  
Vol 1 (6) ◽  
pp. 1952-1962
Author(s):  
Samikannu Prabu ◽  
Kung-Yuh Chiang
Keyword(s):  
Graphene Oxide ◽  
Catalytic Effect ◽  
Hydrogen Generation ◽  
Catalytic Performance ◽  
Metal Nanoparticle ◽  
Oxide Surface ◽  
Turnover Frequency ◽  
High Turnover ◽  
Nanoparticle Stability ◽  
Reduced Graphene

GO and rGO supported metal NPs exhibited excellent catalytic performance for AB hydrolysis. It also provided a high turnover frequency (TOF) at 25 °C.

High Turnover Frequency CO–NO Reactions over Rh Overlayer Catalysts: A Comparative Study Using Rh Nanoparticles

2019 ◽  
Vol 123 (10) ◽  
pp. 6080-6089 ◽  
Author(s):  
Hiroshi Yoshida ◽  
Kenichi Koizumi ◽  
Mauro Boero ◽  
Masahiro Ehara ◽  
Satoshi Misumi ◽  
...  
Keyword(s):  
Comparative Study ◽  
Turnover Frequency ◽  
High Turnover

scholarly journals Efficient and selective molecular catalyst for the CO2-to-CO electrochemical conversion in water

2015 ◽  
Vol 112 (22) ◽  
pp. 6882-6886 ◽  
Author(s):  
Cyrille Costentin ◽  
Marc Robert ◽  
Jean-Michel Savéant ◽  
Arnaud Tatin
Keyword(s):  
Carbon Monoxide ◽  
Carbonic Acid ◽  
Water Soluble ◽  
Turnover Frequency ◽  
High Turnover ◽  
Molecular Catalyst ◽  
Electrochemical Conversion ◽  
Production Of Hydrogen ◽  
Soluble Molecule ◽  
Neutral Water

Substitution of the four paraphenyl hydrogens of iron tetraphenylporphyrin by trimethylammonio groups provides a water-soluble molecule able to catalyze the electrochemical conversion of carbon dioxide into carbon monoxide. The reaction, performed in pH-neutral water, forms quasi-exclusively carbon monoxide with very little production of hydrogen, despite partial equilibration of CO2 with carbonic acid—a low pKa acid. This selective molecular catalyst is endowed with a good stability and a high turnover frequency. On this basis, prescribed composition of CO–H2 mixtures can be obtained by adjusting the pH of the solution, optionally adding an electroinactive buffer. The development of these strategies will be greatly facilitated by the fact that one operates in water. The same applies for the association of the cathode compartment with a proton-producing anode by means of a suitable separator.

Highly efficient catalytic oxidation of 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid with bimetallic Pt-Cu alloy nanoparticles catalyst

2022 ◽  
Author(s):  
Xiaomeng Cheng ◽  
Shaopeng Li ◽  
Shulin Liu ◽  
Xin Yu ◽  
Junjuan Yang ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Copper Alloy ◽  
Active Catalyst ◽  
Alloy Nanoparticles ◽  
Turnover Frequency ◽  
High Turnover ◽  
Highly Efficient ◽  
Highly Active ◽  
Cu Alloy ◽  
Furandicarboxylic Acid

Bimetallic platinum-copper alloy nanoparticles is a highly active catalyst for the oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) under base-free conditions, with a high turnover frequency up to 135...

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