Interface catalysis by Pt nanocluster@Ni3N for bifunctional hydrogen evolution and oxygen evolution

2020 ◽  
Vol 4 (9) ◽  
pp. 2665-2672 ◽  
Author(s):  
Yu Pei ◽  
Babak Rezaei ◽  
Xuyang Zhang ◽  
Zichuang Li ◽  
Hangjia Shen ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Alkaline Media

Pt@Ni3N catalysts with plentiful contact between Ni3N and Pt species were fabricated by a facile strategy. The Pt@Ni3N with low amount of Pt clusters shows excellent electrocatalytic activity of HER and OER in alkaline media.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

Enhancing the electrocatalytic activity and stability of Prussian blue analogues by increasing their electroactive sites through the introduction of Au nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Roger Sanchis-Gual ◽  
Toribio F. Otero ◽  
Marc Coronado Puchau ◽  
Eugenio Coronado
Keyword(s):  
Prussian Blue ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Au Nanoparticles ◽  
Alkaline Media ◽  
Prussian Blue Analogues ◽  
Earth Abundant

Prussian blue analogues (PBAs) have been proven as excellent earth‐abundant electrocatalysts for the oxygen evolution reaction (OER) in acidic, neutral and alkaline media. Still, further improvements can be achieved by...

ELECTROCATALYTIC ACTIVITY OF Ni–Mn–Sn ALLOY FOAMS FOR OXYGEN EVOLUTION REACTION (OER)

2019 ◽  
Vol 27 (03) ◽  
pp. 1950122
Author(s):  
NILOOFAR TAHERIAN ◽  
SOHRAB SANJABI
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Copper Substrate ◽  
Grazing Incidence ◽  
Alkaline Media ◽  
Chemical Compositions ◽  
X Ray ◽  
Sulfate Bath ◽  
Surface Morphologies

This study carried out to examine electrocatalytic activity of Ni–Mn–Sn alloy foams for oxygen evolution reaction (OER) in alkaline media. As the first step, Ni–Mn–Sn alloy foams were prepared of sulfate bath on copper substrate. Next, after optimization of electrodeposition condition by cyclic voltammetry (CV) test, foams were electrodeposited at different current densities 100, 120, 140 and 180[Formula: see text]mA[Formula: see text]⋅[Formula: see text]cm[Formula: see text]. Then, they were characterized by field emission scanning electron microscopy (FE-SEM) along with energy disperse x-ray spectroscopy (EDS) to investigate surface morphologies and chemical compositions. According to FE-SEM results, it was revealed that formation of foam like structures were due to the presence of dynamic hydrogen bubbles template (DHBT). To survey their structure, grazing incidence X-ray diffractometer (GIXRD) analysis was performed. The resulted diffraction pattern determined not only FCC nickel structure of foams, but also mixed phases composed. Following this, Ni–Mn–Sn alloy foams were placed in 0.1 M KOH and related CV tests were applied to measure their electrocatalytic activity for OER. This study demonstrated good electrocatalytic activity for Ni–Mn–Sn alloy foams by showing favorable oxygen evolution overpotenitals and Tafel slopes.

Synthesis of La2(MoO4)3: electrocatalytic activity for the oxygen evolution in alkaline media

1998 ◽  
Vol 23 (11) ◽  
pp. 999-1003 ◽  
Author(s):  
G.P Gonzalez-rojas ◽  
J Bonifacio-martinez ◽  
E Ordoñez-Regil ◽  
S.M Fernandez-valverde
Keyword(s):  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Alkaline Media

Tungsten-coated nano-boron carbide as a non-noble metal bifunctional electrocatalyst for oxygen evolution and hydrogen evolution reactions in alkaline media

Nanoscale ◽  
2017 ◽  
Vol 9 (48) ◽  
pp. 19176-19182 ◽  
Author(s):  
Yan Zhang ◽  
Yanhui Wang ◽  
Chan Han ◽  
Shaopei Jia ◽  
Shuyu Zhou ◽  
...  
Keyword(s):  
Boron Carbide ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Plasma Coating ◽  
Alkaline Media ◽  
Bifunctional Electrocatalyst ◽  
Spark Plasma ◽  
Hydrogen Evolution Reactions

Herein, tungsten-coated nano-boron carbide (W-WB4-WCx/B4C) particles were prepared by heating a mixture of B4C and W powder using a spark plasma coating (SPC) method.

Structure dependent active sites of NixSy as electrocatalysts for hydrogen evolution reaction

Nanoscale ◽  
2015 ◽  
Vol 7 (12) ◽  
pp. 5157-5163 ◽  
Author(s):  
Dong Young Chung ◽  
Joung Woo Han ◽  
Dong-Hee Lim ◽  
Jun-Ho Jo ◽  
Sung Jong Yoo ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Active Sites ◽  
Alkaline Media

Structure effects of NiS and Ni3S2 nanoparticles were investigated for their electrocatalytic activity in the hydrogen evolution reaction in both acid and alkaline media.

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