Hydrothermal synthesis of polydopamine-functionalized cobalt-doped lanthanum nickelate perovskite nanorods for efficient water oxidation in alkaline solution

Nanoscale ◽  
2019 ◽  
Vol 11 (41) ◽  
pp. 19579-19585 ◽  
Author(s):  
Yujie Han ◽  
Zhijun Zhu ◽  
Liang Huang ◽  
Yujing Guo ◽  
Yanling Zhai ◽  
...  

Polydopamine functionalized cobalt-doped lanthanum nickelate perovskite nanorods for with high intrinsic activity for electrochemical oxygen evolution reaction.

2014 ◽  
Vol 2 (30) ◽  
pp. 11799-11806 ◽  
Author(s):  
Xuemei Zhou ◽  
Zhaoming Xia ◽  
Zhiyun Zhang ◽  
Yuanyuan Ma ◽  
Yongquan Qu

One-step hydrothermal synthesis of ultra-thin β-Ni(OH)2 nanoplates (1.5–3.0 nm thickness) and their composite with multi-walled carbon nanotubes in the absence of surfactants function as highly efficient and stable electrocatalysts for oxygen evolution reaction.


2019 ◽  
Vol 55 (20) ◽  
pp. 3000-3003 ◽  
Author(s):  
Zhaoying Wang ◽  
Zheng Lin ◽  
Peng Diao

Iridium–cobalt phosphates act as highly efficient electrocatalysts for water oxidation with an intrinsic activity even superior to iridium phosphate.


2018 ◽  
Vol 5 (1) ◽  
pp. 183-188 ◽  
Author(s):  
Zijuan Du ◽  
Dehua Xiong ◽  
Santosh Kumar Verma ◽  
Baoshun Liu ◽  
Xiujian Zhao ◽  
...  

CuCoO2 crystals were prepared at 100 °C through a hydrothermal method and used for the oxygen evolution reaction in alkaline solution.


2020 ◽  
Vol 44 (17) ◽  
pp. 6825-6832 ◽  
Author(s):  
Fernanda C. Romeiro ◽  
Samuel C. Silva ◽  
Edson Nossol ◽  
Renata C. Lima

rGO–TiO2 nanocomposites exhibited greater electrocatalytic activity for H2O oxidation in neutral and alkaline medium as compared with pure TiO2.


2019 ◽  
Vol 7 (40) ◽  
pp. 23130-23139 ◽  
Author(s):  
Mingquan Yu ◽  
Kendra Solveig Belthle ◽  
Cengiz Tüysüz ◽  
Harun Tüysüz

A facile and scalable strategy via diluted-HCl leaching was developed to prepare sub-5 nm Co3O4 nanocrystals for electrochemical water oxidation.


2020 ◽  
Vol 49 (11) ◽  
pp. 3519-3524 ◽  
Author(s):  
Yanwen Deng ◽  
Dehua Xiong ◽  
Han Gao ◽  
Jie Wu ◽  
Santosh Kumar Verma ◽  
...  

CuScO2 hexagonal plates were prepared through a hydrothermal method and used for the oxygen evolution reaction in alkaline solution.


Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Jia-Wei Zhao ◽  
Cheng-Fei Li ◽  
Zi-Xiao Shi ◽  
Jie-Lun Guan ◽  
Gao-Ren Li

In the process of oxygen evolution reaction (OER) on perovskite, it is of great significance to accelerate the hindered lattice oxygen oxidation process to promote the slow kinetics of water oxidation. In this paper, a facile surface modification strategy of nanometer-scale iron oxyhydroxide (FeOOH) clusters depositing on the surface of LaNiO3 (LNO) perovskite is reported, and it can obviously promote hydroxyl adsorption and weaken Ni-O bond of LNO. The above relevant evidences are well demonstrated by the experimental results and DFT calculations. The excellent hydroxyl adsorption ability of FeOOH-LaNiO3 (Fe-LNO) can obviously optimize OH- filling barriers to promote lattice oxygen-participated OER (LOER), and the weakened Ni-O bond of LNO perovskite can obviously reduce the reaction barrier of the lattice oxygen participation mechanism (LOM). Based on the above synergistic catalysis effect, the Fe-LNO catalyst exhibits a maximum factor of 5 catalytic activity increases for OER relative to the pristine perovskite and demonstrates the fast reaction kinetics (low Tafel slope of 42 mV dec-1) and superior intrinsic activity (TOFs of ~40 O2 S-1 at 1.60 V vs. RHE).


2017 ◽  
Vol 53 (92) ◽  
pp. 12446-12449 ◽  
Author(s):  
Qin Liu ◽  
Lisi Xie ◽  
Zhiang Liu ◽  
Gu Du ◽  
Abdullah M. Asiri ◽  
...  

A Zn-doped Ni3S2nanosheet array on Ni foam (Zn-Ni3S2/NF) acts as a high-performance and durable electrocatalyst for the oxygen evolution reaction in 1.0 M KOH, driving a catalytic current density of 100 mA cm−2at an overpotential of 330 mV, 90 mV less than that for Ni3S2/NF.


2019 ◽  
Vol 55 (63) ◽  
pp. 9347-9350 ◽  
Author(s):  
Lei Zhong ◽  
Yufei Bao ◽  
Xu Yu ◽  
Ligang Feng

An Fe doped NiTe bulk crystal was demonstrated to exhibit an extremely active and stable performance for the electrochemical oxygen evolution reaction.


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