Bimetallic phosphide hollow nanocubes derived from a prussian-blue-analog used as high-performance catalysts for the oxygen evolution reaction

2017 ◽  
Vol 7 (7) ◽  
pp. 1549-1555 ◽  
Author(s):  
Hong-Hong Zou ◽  
Cheng-Zong Yuan ◽  
Hong-Yan Zou ◽  
Tuck-Yun Cheang ◽  
Sheng-Jie Zhao ◽  
...  

Bimetallic phosphide (NixFe1−x)2P hollow nanocubes were prepared from PBAs as highly active and stable OER electrocatalysts.

Author(s):  
Shuya Zhao ◽  
Yurui Xue ◽  
Zhongqiang Wang ◽  
Zhiqiang Zheng ◽  
Xiaoyu Luan ◽  
...  

Developing highly active, stable and low-cost electrocatalysts capable of an efficient oxygen evolution reaction (OER) is urgent and challenging.


Author(s):  
Yoo Sei Park ◽  
Jooyoung Lee ◽  
Myeong-Je Jang ◽  
Juchan Yang ◽  
Jae Hoon Jeong ◽  
...  

Seawater electrolysis is a promising technology for the production of hydrogen energy and seawater desalination. To produce hydrogen energy through seawater electrolysis, highly active electrocatalysts for the oxygen evolution reaction...


2016 ◽  
Vol 4 (2) ◽  
pp. 620-631 ◽  
Author(s):  
Islam M. Mosa ◽  
Sourav Biswas ◽  
Abdelhamid M. El-Sawy ◽  
Venkatesh Botu ◽  
Curtis Guild ◽  
...  

Understanding the origin of manganese oxide activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is a key step towards rationally designing of highly active catalysts capable of competing with the widely used, state-of-art noble metal catalysts.


2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Kaili Zhang ◽  
Xinhui Xia ◽  
Shengjue Deng ◽  
Yu Zhong ◽  
Dong Xie ◽  
...  

Abstract Controllable synthesis of highly active micro/nanostructured metal electrocatalysts for oxygen evolution reaction (OER) is a particularly significant and challenging target. Herein, we report a 3D porous sponge-like Ni material, prepared by a facile hydrothermal method and consisting of cross-linked micro/nanofibers, as an integrated binder-free OER electrocatalyst. To further enhance the electrocatalytic performance, an N-doping strategy is applied to obtain N-doped sponge Ni (N-SN) for the first time, via NH3 annealing. Due to the combination of the unique conductive sponge structure and N doping, the as-obtained N-SN material shows improved conductivity and a higher number of active sites, resulting in enhanced OER performance and excellent stability. Remarkably, N-SN exhibits a low overpotential of 365 mV at 100 mA cm−2 and an extremely small Tafel slope of 33 mV dec−1, as well as superior long-term stability, outperforming unmodified sponge Ni. Importantly, the combination of X-ray photoelectron spectroscopy and near-edge X-ray adsorption fine structure analyses shows that γ-NiOOH is the surface-active phase for OER. Therefore, the combination of conductive sponge structure and N-doping modification opens a new avenue for fabricating new types of high-performance electrodes with application in electrochemical energy conversion devices.


2019 ◽  
Vol 7 (13) ◽  
pp. 7328-7332 ◽  
Author(s):  
Hengyi Fang ◽  
Taizhong Huang ◽  
Dong Liang ◽  
Ming Qiu ◽  
Yue Sun ◽  
...  

Oxygen vacancies on CoFe2O4 NSs and lattice oxygens that participate in the reaction deliver a high current density and low overpotential for the OER.


2021 ◽  
Vol 367 ◽  
pp. 137492
Author(s):  
Di Li ◽  
Chenchen Liu ◽  
Wanxia Ma ◽  
Shengjie Xu ◽  
Yikai Lu ◽  
...  

2016 ◽  
Vol 52 (32) ◽  
pp. 5546-5549 ◽  
Author(s):  
Xiang Liu ◽  
Shengsheng Cui ◽  
Manman Qian ◽  
Zijun Sun ◽  
Pingwu Du

A highly active copper oxide catalyst film is generated in situ from copper(ii) diamine complex for oxygen evolution reaction with high performance and excellent durability in alkaline solutions.


2019 ◽  
Vol 7 (47) ◽  
pp. 26905-26910 ◽  
Author(s):  
Hui Xu ◽  
Hongyuan Shang ◽  
Liujun Jin ◽  
Chunyan Chen ◽  
Cheng Wang ◽  
...  

Construction of well-designed CoFe PBA/CoS2 nanoboxes with excellent photoelectrocatalytic performance for the oxygen evolution reaction is presented.


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