Confined heat treatment of a Prussian blue analogue for enhanced electrocatalytic oxygen evolution

2018 ◽  
Vol 6 (33) ◽  
pp. 15942-15946 ◽  
Author(s):  
Yanhua Zeng ◽  
Gao-Feng Chen ◽  
Zhouyang Jiang ◽  
Liang-Xin Ding ◽  
Suqing Wang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Electron Transport ◽  
Prussian Blue ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Optimization Strategy ◽  
Prussian Blue Analogue ◽  
Surface Optimization

A simple and feasible in situ synthesis and surface optimization strategy to enable the Ni-based Prussian blue analogue (NiFeII-PBA) with excellent electrocatalytic oxygen evolution performance by boosting its electron transport and the exposure of active sites.

In Situ Anchoring Polymetallic Phosphide Nanoparticles within Porous Prussian Blue Analogue Nanocages for Boosting Oxygen Evolution Catalysis

Nano Letters ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 3016-3025
Author(s):  
Guangxun Zhang ◽  
Yanle Li ◽  
Xiao Xiao ◽  
Yang Shan ◽  
Yang Bai ◽  
...  
Keyword(s):  
Prussian Blue ◽  
Oxygen Evolution ◽  
Prussian Blue Analogue

In situ semi-transformation from heterometallic MOFs to Fe–Ni LDH/MOF hierarchical architectures for boosted oxygen evolution reaction

Nanoscale ◽  
2020 ◽  
Vol 12 (27) ◽  
pp. 14514-14523 ◽  
Author(s):  
Jiamin Huo ◽  
Ying Wang ◽  
Liting Yan ◽  
Yingying Xue ◽  
Shuni Li ◽  
...  
Keyword(s):  
Electron Transport ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Hierarchical Architecture ◽  
Transport Channel ◽  
Hierarchical Architectures ◽  
Accessible Surface ◽  
Open Electron

Design an in-situ semi-transformation strategy for the development of Fe-Ni LDH/MOF hierarchical architecture exhibiting large accessible surface, open electron transport channel and multiple active sites to promote the electrocatalytic capacity.

Tunable electronic coupling of cobalt sulfide/carbon composites for optimizing oxygen evolution reaction activity

2018 ◽  
Vol 6 (22) ◽  
pp. 10304-10312 ◽  
Author(s):  
Ziliang Chen ◽  
Renbing Wu ◽  
Miao Liu ◽  
Yang Liu ◽  
Shuangyu Xu ◽  
...  
Keyword(s):  
Prussian Blue ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Optimal Performance ◽  
Cobalt Sulfide ◽  
Electronic Coupling ◽  
Carbon Composites ◽  
Coupling Effects ◽  
Prussian Blue Analogue ◽  
Tunable Coupling

Construction of nanocomposites with tunable coupling effects to obtain the synergetic effects and optimal performance has been realized through annealing a Prussian blue analogue at controlled temperatures.

scholarly journals A Cobalt-Iron Double-Atom Catalyst for the Oxygen Evolution Reaction

2019 ◽  
Author(s):  
Lichen Bai ◽  
Chia-Shuo Hsu ◽  
Duncan Alexander ◽  
Hao Ming Chen ◽  
Xile Hu
Keyword(s):  
Oxygen Evolution ◽  
Active Site ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Single Atom ◽  
X Ray ◽  
Highly Active ◽  
Cobalt Iron ◽  
X Ray Absorption

Single atom catalysts exhibit well-defined active sites and potentially maximum atomic efficiency. However, they are unsuitable for reactions that benefit from bimetallic promotion such as the oxygen evolution reaction (OER) in alkaline medium. Here we show that a single atom Co precatalyst can be in-situ transformed into a Co-Fe double atom catalyst for OER. This catalyst exhibits one of the highest turnover frequencies among metal oxides. Electrochemical, microscopic, and spectroscopic data including those from operando X-ray absorption spectroscopy, reveal a dimeric Co-Fe moiety as the active site of the catalyst. This work demonstrates double-atom catalysis as a promising approach for the developed of defined and highly active OER catalysts.

Sign in / Sign up

Export Citation Format

Share Document