Energy-efficient electrolytic hydrogen generation using a Cu3P nanoarray as a bifunctional catalyst for hydrazine oxidation and water reduction

2017 ◽  
Vol 4 (3) ◽  
pp. 420-423 ◽  
Author(s):  
Meng Liu ◽  
Rong Zhang ◽  
Lixue Zhang ◽  
Danni Liu ◽  
Shuai Hao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
Oxidation Reaction ◽  
Hydrogen Generation ◽  
Bifunctional Catalyst ◽  
Water Reduction ◽  
Hydrazine Oxidation ◽  
Electrolytic Hydrogen

A Cu3P nanoarray acts as a durable bifunctional catalyst for hydrogen evolution reaction and hydrazine oxidation reaction with 100 mA cm−2at 0.72 V in 1.0 M KOH.

Integrating natural biomass electro-oxidation and hydrogen evolution: using a porous Fe-doped CoP nanosheet array as a bifunctional catalyst

2017 ◽  
Vol 53 (42) ◽  
pp. 5710-5713 ◽  
Author(s):  
Shuai Hao ◽  
Libin Yang ◽  
Danni Liu ◽  
Rongmei Kong ◽  
Gu Du ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxidation Reaction ◽  
Bifunctional Catalyst ◽  
Efficient Catalyst ◽  
Nanosheet Array ◽  
Electro Oxidation ◽  
Catalyst Electrode

An Fe-doped CoP nanosheet array acts as an efficient catalyst electrode for aloe extract oxidation reaction (AOR) and hydrogen evolution reaction (HER). Its two-electrode alkaline electrolyzer requires 1.51 V for 20 mA cm−2.

scholarly journals Fabrication of a porous NiFeP/Ni electrode for highly efficient hydrazine oxidation boosted H2 evolution

2021 ◽  
Vol 3 (8) ◽  
pp. 2280-2286
Author(s):  
Honglei Wang ◽  
Shengyang Tao
Keyword(s):  
Energy Saving ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxidation Reaction ◽  
H2 Evolution ◽  
Highly Efficient ◽  
Hydrazine Oxidation

Here, a simple dual-regulation strategy is reported to synthesize porous P-NiFeP/Ni nanoflowers for enabling the anodic hydrazine oxidation reaction and the cathodic energy-saving hydrogen evolution reaction.

Electronic structure engineering of single atomic Ru by Ru nanoparticles to enable enhanced activity for alkaline water reduction

2019 ◽  
Vol 7 (33) ◽  
pp. 19531-19538 ◽  
Author(s):  
Qi Hu ◽  
Guomin Li ◽  
Xiaowan Huang ◽  
Ziyu Wang ◽  
Hengpan Yang ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electronic Structures ◽  
Alkaline Water ◽  
Water Reduction ◽  
Ru Nanoparticles ◽  
Enhanced Activity ◽  
Structure Engineering

The electronic structures of single atomic Ru (SA-Ru) were suitably optimized by nearby Ru NPs for boosting the hydrogen evolution reaction (HER) over SA-Ru.

Hierarchical Microsphere MOF Arrays with Ultralow Ir Doping for Efficient Hydrogen Evolution Coupled with Hydrazine Oxidation in Seawater

2021 ◽  
Author(s):  
Xuejun Zhai ◽  
Qingping Yu ◽  
Guishan Liu ◽  
Junlu Bi ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Efficient Catalyst ◽  
Hydrazine Oxidation ◽  
Renewable Hydrogen

Hydrogen evolution reaction (HER) based on water electrolysis is promising for renewable hydrogen production. Limited by sluggish anodic oxygen evolution reaction (OER), rational fabrication of efficient catalyst for HER coupled...

Ultrafast synthesis of molybdenum carbide nanoparticles for efficient hydrogen generation

2017 ◽  
Vol 5 (43) ◽  
pp. 22805-22812 ◽  
Author(s):  
Cuncai Lv ◽  
Zhipeng Huang ◽  
Qianpeng Yang ◽  
Guangfeng Wei ◽  
Zuofeng Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Coating ◽  
Molybdenum Carbide ◽  
Hydrogen Generation

A facile and ultrafast synthesis of molybdenum carbide coated with few-layer carbon (MoC/C) has been developed, and the effect of reducing the thickness of the carbon coating on its catalytic activity in the hydrogen evolution reaction (HER) has been demonstrated.

Polyaniline Modified Surface of Electrode for Boosting the Electrocatalysis on Hydrogen Evolution Reaction and Ethanol Oxidation Reaction

2021 ◽  
Author(s):  
Yankun Huang ◽  
Feng Bao ◽  
Muwei Ji ◽  
Yanzhao Hu ◽  
Liu Huang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrode Surface ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Carbon Paper ◽  
Ethanol Oxidation Reaction ◽  
Pt Electrode ◽  
Modified Surface

Here, polyaniline (PANI) is reported loaded on carbon paper to modify the carbon paper-PANI-Pt electrode surface, tailoring the electrocatalytic capability on hydrogen evolution reaction and ethanol oxidation reaction. The reasons...

Pt atoms on doped carbon nanosheets with ultrahigh N content as a superior bifunctional catalyst for hydrogen evolution/oxidation

2021 ◽  
Author(s):  
Zhen Zhang ◽  
Cheng Jiang ◽  
Ping Li ◽  
Qi Feng ◽  
Zhi liang Zhao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Oxidation Reaction ◽  
Bifunctional Catalyst ◽  
Catalytic Performance ◽  
N Content ◽  
Carbon Nanosheets

Isolated Pt atoms on N-doped carbon nanosheets exhibit excellent bifunctional catalytic performance towards the hydrogen evolution/oxidation reaction (HER/HOR).

scholarly journals Fabrication of Robust Hydrogen Evolution Reaction Electrocatalyst Using Ag2Se by Vacuum Evaporation

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1460
Author(s):  
Sajjad Hussain ◽  
Jinwoong Chae ◽  
Kamran Akbar ◽  
Dhanasekaran Vikraman ◽  
Linh Truong ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
First Principles ◽  
Hydrogen Adsorption ◽  
Hydrogen Generation ◽  
Low Cost ◽  
First Principles Calculations ◽  
Electrochemical Surface Area ◽  
Complex Catalyst ◽  
Catalyst Synthesis

Much research has been done on reliable and low-cost electrocatalysts for hydrogen generation by water splitting. In this study, we synthesized thin films of silver selenide (Ag2Se) using a simple thermal evaporation route and demonstrated their electrocatalytic hydrogen evolution reaction (HER) activity. The Ag2Se catalysts show improved electrochemical surface area and good HER electrocatalytic behavior (367 mV overpotential @ 10 mA·cm−2, exchange current density: ~1.02 × 10−3 mA·cm−2, and Tafel slope: 53 mV·dec−1) in an acidic medium). The reliability was checked in 0.5 M sulfuric acid over 20 h. Our first-principles calculations show the optimal energy of hydrogen adsorption, which is consistent with experimental results. The works could be further extended for finding a new catalyst by associating the selenide, sulfide or telluride-based materials without complex catalyst synthesis procedures.

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