Engineering electrocatalyst nanosurfaces to enrich activity by inducing lattice strain

Author(s):  
Sandip Maiti ◽  
Kakali Maiti ◽  
Matthew T. Curnan ◽  
Kyeounghak Kim ◽  
Kyung-Jong Noh ◽  
...  

Electrocatalysis undeniably offers noteworthy improvements to future energy conversion and storage technologies, such as fuel cells, water electrolyzers, and metal–air batteries. Molecular interaction between catalytic surfaces and chemical reactants produces...

2015 ◽  
Vol 1 (7) ◽  
pp. e1500564 ◽  
Author(s):  
Jintao Zhang ◽  
Zhenhai Xia ◽  
Liming Dai

Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) play curial roles in electrochemical energy conversion and storage, including fuel cells and metal-air batteries. Having rich multidimensional nanoarchitectures [for example, zero-dimensional (0D) fullerenes, 1D carbon nanotubes, 2D graphene, and 3D graphite] with tunable electronic and surface characteristics, various carbon nanomaterials have been demonstrated to act as efficient metal-free electrocatalysts for ORR and OER in fuel cells and batteries. We present a critical review on the recent advances in carbon-based metal-free catalysts for fuel cells and metal-air batteries, and discuss the perspectives and challenges in this rapidly developing field of practical significance.


Author(s):  
Zhihua Zhai ◽  
Guixing Jia ◽  
Yu Wang ◽  
Xiaoting Chen ◽  
Zhonghua Zhang

Increasing energy demand has spurred extensive research on the development of efficient and pollution-free alternative energy conversion and storage technologies. Water oxidation is a critically limiting anodic reaction of electrochemical...


2018 ◽  
Vol 6 (10) ◽  
pp. 4236-4259 ◽  
Author(s):  
Yuqing Luo ◽  
Yijian Tang ◽  
Shasha Zheng ◽  
Yan Yan ◽  
Huaiguo Xue ◽  
...  

Currently, the application of new energy conversion and storage technologies is urgent in order to meet the increasing requirements for energy.


2020 ◽  
Vol 10 (2) ◽  
pp. 141-159
Author(s):  
Ana S. Dobrota ◽  
Igor A. Pašti

Growing world population and energy demands have placed energy conversion and storage into the very centre of modern research. Electrochemical energy conversion systems including batteries, fuel cells, and supercapacitors, are widely considered as the next generation power sources. Even though they rely on different mechanisms of energy conversion and storage, fundamentally these are all electrochemical cells, operating through processes taking place at the solid/liquid interfaces, i.e. electrodes. Considering the interfacial nature of electrodes, it is clear that adsorption phenomena cannot be neglected when considering electrochemical systems. More than that, they are of crucial importance for electrochemical processes and represent an essential step in electrochemical energy conversion. In this contribution we give an overview of the phenomena underlying the operation of sustainable metal-ion batteries, fuel cells and supercapacitors, ranging from electrocatalytic reactions and pseudo-faradaic processes to purely adsorptive processes, emphasizing the types, roles and significance of chemisorption. We review experimental and theoretical methods which can provide information about chemisorption in the mentioned systems, stressing the importance of combining both approaches.


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