scholarly journals Black phosphorus synthesized by solvothermal reaction from red phosphorus and its catalytic activity for water splitting

2020 ◽  
Vol 8 (15) ◽  
pp. 7368-7376 ◽  
Author(s):  
Akiyo Ozawa ◽  
Muneaki Yamamoto ◽  
Tetsuo Tanabe ◽  
Saburo Hosokawa ◽  
Tomoko Yoshida
Keyword(s):  
Catalytic Activity ◽  
Water Splitting ◽  
Black Phosphorus ◽  
Solvothermal Reaction ◽  
Red Phosphorus ◽  
One Pot

We have succeeded in synthesizing black phosphorus employing a one-pot solvothermal reaction of red phosphorous and ethylenediamine used as a solvent.

scholarly journals Unraveling the impact of the Pd nanoparticle@BiVO4/S-CN heterostructure on the photo-physical & opto-electronic properties for enhanced catalytic activity in water splitting and one-pot three-step tandem reaction

2019 ◽  
Vol 1 (4) ◽  
pp. 1395-1412 ◽  
Author(s):  
Subhajyoti Samanta ◽  
Biswarup Satpati ◽  
Rajendra Srivastava
Keyword(s):  
Catalytic Activity ◽  
Electronic Properties ◽  
Water Splitting ◽  
Tandem Reaction ◽  
One Pot ◽  
Pd Nanoparticle ◽  
The Impact

Influence of Pd NPs in the BiVO4/S-CN photocatalyst is demonstrated for the efficient water splitting and imine synthesis via tandem reaction.

scholarly journals Efficient Photoelectrochemical Water Splitting Reaction Using Electrodeposited Co3Se4 Catalys

2018 ◽  
Author(s):  
Yelyn Sim ◽  
Jude John ◽  
Subramani Surendran ◽  
Byeolee Moon ◽  
Uk Sim
Keyword(s):  
Catalytic Activity ◽  
Water Splitting ◽  
Noble Metal ◽  
Effective Area ◽  
Research Area ◽  
Photoelectrochemical Water Splitting ◽  
Photoelectrochemical Activity ◽  
One Pot ◽  
Noble Metal Catalysts ◽  
Highly Efficient

Photoelectrochemical water splitting is a promising field for sustainable energy production using hydrogen. Development of efficient catalysts is essential for resourceful hydrogen production. The most efficient catalysts reported to date have been extremely precious rare-earth metals. One of the biggest hurdles in this research area is the difficulty of developing highly efficient catalysts comparable to the noble metal catalysts. Here, we report that non-noble metal dichalcogenide (Co3Se4) catalysts made using a facile one-pot electrodeposition method, showed highly efficient photoelectrochemical activity on a Si photocathode. To enhance light collection and enlarge its surface area even further, we implemented surface nano-structuring on the Si surface. The nano-structured Si photoelectrode has an effective area greater than that of planar silicon and a wider absorption spectrum. Consequently, this approach exhibits reduced overvoltage as well as increased photo-catalytic activity. Such results show the importance of controlling the optimized interface between the surface structure of the photoelectrode and the electrodeposited co-catalyst on it to improve catalytic activity. This should enable other electrochemical reactions in a variety of energy conversion systems.

scholarly journals Efficient Photoelectrochemical Water Splitting Reaction using Electrodeposited Co3Se4 Catalyst

2018 ◽  
Vol 9 (1) ◽  
pp. 16 ◽  
Author(s):  
Yelyn Sim ◽  
Jude John ◽  
Subramani Surendran ◽  
Byeolee Moon ◽  
Uk Sim
Keyword(s):  
Catalytic Activity ◽  
Water Splitting ◽  
Noble Metal ◽  
Effective Area ◽  
Research Area ◽  
Photoelectrochemical Water Splitting ◽  
Photoelectrochemical Activity ◽  
One Pot ◽  
Noble Metal Catalysts ◽  
Highly Efficient

Photoelectrochemical water splitting is a promising field for sustainable energy production using hydrogen. Development of efficient catalysts is essential for resourceful hydrogen production. The most efficient catalysts reported to date have been extremely precious rare-earth metals. One of the biggest hurdles in this research area is the difficulty of developing highly efficient catalysts comparable to the noble metal catalysts. Here, we report that non-noble metal dichalcogenide (Co3Se4) catalysts made using a facile one-pot electrodeposition method, showed highly efficient photoelectrochemical activity on a Si photocathode. To enhance light collection and enlarge its surface area even further, we implemented surface nanostructuring on the Si surface. The nanostructured Si photoelectrode has an effective area greater than that of planar silicon and a wider absorption spectrum. Consequently, this approach exhibits reduced overvoltage as well as increased photo-catalytic activity. Such results show the importance of controlling the optimized interface between the surface structure of the photoelectrode and the electrodeposited co-catalyst on it to improve catalytic activity. This should enable other electrochemical reactions in a variety of energy conversion systems.

In situ growth of snowflake-like 1D/2D phosphorus element heterostructure for photocatalytic overall pure-water splitting

2021 ◽  
Author(s):  
Ling Zhao ◽  
Hanpeng Fu ◽  
Lishan Jian ◽  
Yating Zeng ◽  
Liran Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Pure Water ◽  
Black Phosphorus ◽  
In Situ Growth ◽  
Red Phosphorus

In this work, we report a novel phosphorus element heterostructure with snowflake-like morphology consisting of 1D rod black phosphorus (BP) and 2D flake red phosphorus (RP). The content of black...

scholarly journals Spinel of Nickel-Cobalt Oxide with Rod-Like Architecture as Electrocatalyst for Oxygen Evolution Reaction

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3918
Author(s):  
Anna Dymerska ◽  
Wojciech Kukułka ◽  
Marcin Biegun ◽  
Ewa Mijowska
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Solvothermal Reaction ◽  
Step Method ◽  
One Pot ◽  
Widespread Application ◽  
Nickel Cobalt ◽  
Slow Kinetics ◽  
Nickel Cobalt Oxide

The renewable energy technologies require electrocatalysts for reactions, such as the oxygen and/or hydrogen evolution reaction (OER/HER). They are complex electrochemical reactions that take place through the direct transfer of electrons. However, mostly they have high over-potentials and slow kinetics, that is why they require electrocatalysts to lower the over-potential of the reactions and enhance the reaction rate. The commercially used catalysts (e.g., ruthenium nanoparticles—Ru, iridium nanoparticles—Ir, and their oxides: RuO2, IrO2, platinum—Pt) contain metals that have poor stability, and are not economically worthwhile for widespread application. Here, we propose the spinel structure of nickel-cobalt oxide (NiCo2O4) fabricated to serve as electrocatalyst for OER. These structures were obtained by a facile two-step method: (1) One-pot solvothermal reaction and subsequently (2) pyrolysis or carbonization, respectively. This material exhibits novel rod-like morphology formed by tiny spheres. The presence of transition metal particles such as Co and Ni due to their conductivity and electron configurations provides a great number of active sites, which brings superior electrochemical performance in oxygen evolution and good stability in long-term tests. Therefore, it is believed that we propose interesting low-cost material that can act as a super stable catalyst in OER.

scholarly journals Synthesis of tetrazolo[1,5-a]pyrimidine-6-carbonitriles using HMTA-BAIL@MIL-101(Cr) as a superior heterogeneous catalyst

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Hossein Abdollahi-Basir ◽  
Boshra Mirhosseini-Eshkevari ◽  
Farzad Zamani ◽  
Mohammad Ali Ghasemzadeh
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Reaction Time ◽  
Metal Organic Framework ◽  
One Pot ◽  
Short Reaction Time ◽  
Three Component Reaction ◽  
Metal Organic ◽  
Ft Ir ◽  
Novel Catalyst

AbstractA one-pot three component reaction of benzaldehydes, 1H-tetrazole-5-amine, and 3-cyanoacetyl indole in the presence of a new hexamethylenetetramine-based ionic liquid/MIL-101(Cr) metal–organic framework as a recyclable catalyst was explored. This novel catalyst, which was fully characterized by XRD, FE-SEM, EDX, FT-IR, TGA, BET, and TEM exhibited outstanding catalytic activity for the preparation of a range of pharmaceutically important tetrazolo[1,5-a]pyrimidine-6-carbonitriles with good to excellent yields in short reaction time.

One-pot pyrolysis synthesis of highly active Ru/RuOX nanoclusters for water splitting

Nano Research ◽  
2021 ◽  
Author(s):  
Fengyuan Zhu ◽  
Jiangyan Xue ◽  
Lingjian Zeng ◽  
Jingrui Shang ◽  
Shuanglong Lu ◽  
...  
Keyword(s):  
Water Splitting ◽  
One Pot ◽  
Highly Active ◽  
Pyrolysis Synthesis

scholarly journals Controlling catalytic activity of gold cluster on MgO thin film for water splitting

2017 ◽  
Vol 1 (4) ◽  
Author(s):  
Zijing Ding ◽  
Lei Yan ◽  
Zi Li ◽  
Wei Ma ◽  
Gang Lu ◽  
...  
Keyword(s):  
Thin Film ◽  
Catalytic Activity ◽  
Water Splitting ◽  
Gold Cluster
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