Hierarchical Ni3S2 nanosheets coated on Co3O4 nanoneedle arrays on 3D nickel foam as an efficient electrocatalyst for the oxygen evolution reaction

2018 ◽  
Vol 6 (12) ◽  
pp. 5098-5106 ◽  
Author(s):  
Yaqiong Gong ◽  
Zhoufeng Xu ◽  
Hailong Pan ◽  
Yu Lin ◽  
Zhi Yang ◽  
...  

As-obtained Co3O4@Ni3S2/NF can serve as an active and stable water oxidation catalyst under electrochemical reaction conditions.

2020 ◽  
Vol 44 (4) ◽  
pp. 1455-1462 ◽  
Author(s):  
Jingyi Wang ◽  
Zhi Yang ◽  
Meilin Zhang ◽  
Yaqiong Gong

The as-obtained CoFe2O4@Ni3S2/NF can serve as an active and stable water oxidation catalyst under electrochemical reaction conditions.


2018 ◽  
Vol 6 (38) ◽  
pp. 18641-18648 ◽  
Author(s):  
Zhoufeng Xu ◽  
Hailong Pan ◽  
Yu Lin ◽  
Zhi Yang ◽  
Jinlei Wang ◽  
...  

The as-obtained hexagonal copper-coin-shaped NiCoSe2@NiO@CoNi2S4@CoS2 electrode can serve as a high-performance electrocatalyst for the oxygen evolution reaction under electrochemical reaction conditions.


2017 ◽  
Vol 1 (1) ◽  
pp. 207-216 ◽  
Author(s):  
Michelle P. Browne ◽  
Joana M. Vasconcelos ◽  
João Coelho ◽  
Maria O'Brien ◽  
Aurelie A. Rovetta ◽  
...  

Recent research trends have seen a rise in the interest in Transition Metal Oxides (TMO's) as catalysts for the Oxygen Evolution Reaction (OER).


Nanoscale ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 3378-3385 ◽  
Author(s):  
Changhong Zhan ◽  
Zheng Liu ◽  
Yang Zhou ◽  
Mingliang Guo ◽  
Xiaolin Zhang ◽  
...  

Electrochemical water splitting requires an efficient water oxidation catalyst to accelerate the oxygen evolution reaction (OER).


2018 ◽  
Vol 14 ◽  
pp. 1436-1445 ◽  
Author(s):  
Jonas Weidner ◽  
Stefan Barwe ◽  
Kirill Sliozberg ◽  
Stefan Piontek ◽  
Justus Masa ◽  
...  

The electrochemical water splitting commonly involves the cathodic hydrogen and anodic oxygen evolution reactions (OER). The oxygen evolution reaction is more energetically demanding and kinetically sluggish and represents the bottleneck for a commercial competitiveness of electrochemical hydrogen production from water. Moreover, oxygen is essentially a waste product of low commercial value since the primary interest is to convert electrical energy into hydrogen as a storable energy carrier. We report on the anodic oxidation of 5-hydroxymethylfurfural (HMF) to afford the more valuable product 2,5-furandicarboxylic acid (FDCA) as a suitable alternative to the oxygen evolution reaction. Notably, HMF oxidation is thermodynamically more favorable than water oxidation and hence leads to an overall improved energy efficiency for H2 production. In addition, contrary to the “waste product O2”, FDCA can be further utilized, e.g., for production of polyethylene 2,5-furandicarboxylate (PEF), a sustainable polymer analog to polyethylene terephthalate (PET) and thus represents a valuable product for the chemical industry with potential large scale use. Various cobalt–metalloid alloys (CoX; X = B, Si, P, Te, As) were investigated as potential catalysts for HMF oxidation. In this series, CoB required 180 mV less overpotential to reach a current density of 55 mA cm−2 relative to OER with the same electrode. Electrolysis of HMF using a CoB modified nickel foam electrode at 1.45 V vs RHE achieved close to 100% selective conversion of HMF to FDCA at 100% faradaic efficiency.


Nanoscale ◽  
2017 ◽  
Vol 9 (43) ◽  
pp. 16612-16615 ◽  
Author(s):  
Maowen Xie ◽  
Lin Yang ◽  
Yuyao Ji ◽  
Ziqiang Wang ◽  
Xiang Ren ◽  
...  

A Co-carbonate-hydroxide nanowire array on nickel foam (CoCH/NF) is durable for water oxidation electrocatalysis with superior activity to its Co(CO3)0.5(OH)·0.11H2O nanoarray precursor CoCHH/NF in 1.0 M K–Ci.


RSC Advances ◽  
2019 ◽  
Vol 9 (38) ◽  
pp. 21679-21684 ◽  
Author(s):  
Jianying Wang ◽  
Xue Teng ◽  
Yanli Niu ◽  
Lixia Guo ◽  
Jianfei Kong ◽  
...  

We report here a simple and cost-effective autologous growth method to prepare a NiFe-based integrated electrode for efficient electrocatalytic water oxidation.


2017 ◽  
Vol 46 (22) ◽  
pp. 7327-7331 ◽  
Author(s):  
Xiaoqiang Du ◽  
Jingwei Huang ◽  
Yong Ding

The as-obtained CuO microspheres can serve as an active and stable water oxidation catalyst under electrochemical reaction conditions and operate at modest overpotential providing an alternative to the Co-WOC catalyst for applications in solar energy storage.


Nanoscale ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 3268-3274 ◽  
Author(s):  
Jianping Xin ◽  
Hua Tan ◽  
Zhihe Liu ◽  
Lili Zhao ◽  
Junfeng Xie ◽  
...  

Hierarchical porous NixCo1−xSeO3 networks as a new and efficient electrocatalyst for the oxygen evolution reaction have been designed and synthesized.


2020 ◽  
Vol 8 (16) ◽  
pp. 8096-8103 ◽  
Author(s):  
Libo Wu ◽  
Luo Yu ◽  
Fanghao Zhang ◽  
Dezhi Wang ◽  
Dan Luo ◽  
...  

Nanoparticle-stacked tungsten-doped nickel iron layered double hydroxide (Ni–Fe–W LDH) nanosheets have been synthesized through a facile water bath reaction as efficient water oxidation catalyst.


Sign in / Sign up

Export Citation Format

Share Document