Vapor-Phase Atomic Layer Deposition of Nickel Sulfide and Its Application for Efficient Oxygen-Evolution Electrocatalysis

2016 ◽  
Vol 28 (4) ◽  
pp. 1155-1164 ◽  
Author(s):  
Hao Li ◽  
Youdong Shao ◽  
Yantao Su ◽  
Yuanhong Gao ◽  
Xinwei Wang
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Linxing Meng ◽  
Jinlu He ◽  
Xiaolong Zhou ◽  
Kaimo Deng ◽  
Weiwei Xu ◽  
...  

AbstractVast bulk recombination of photo-generated carriers and sluggish surface oxygen evolution reaction (OER) kinetics severely hinder the development of photoelectrochemical water splitting. Herein, through constructing a vertically ordered ZnInS nanosheet array with an interior gradient energy band as photoanode, the bulk recombination of photogenerated carriers decreases greatly. We use the atomic layer deposition technology to introduce Fe-In-S clusters into the surface of photoanode. First-principles calculations and comprehensive characterizations indicate that these clusters effectively lower the electrochemical reaction barrier on the photoanode surface and promote the surface OER reaction kinetics through precisely affecting the second and third steps (forming processes of O* and OOH*) of the four-electron reaction. As a result, the optimal photoanode exhibits the high performance with a significantly enhanced photocurrent of 5.35 mA cm−2 at 1.23 VRHE and onset potential of 0.09 VRHE. Present results demonstrate a robust platform for controllable surface modification, nanofabrication, and carrier transport.


2012 ◽  
Vol 2 (10) ◽  
pp. 1269-1277 ◽  
Author(s):  
Katie L. Pickrahn ◽  
Sang Wook Park ◽  
Yelena Gorlin ◽  
Han-Bo-Ram Lee ◽  
Thomas F. Jaramillo ◽  
...  

2020 ◽  
Vol 92 (2) ◽  
pp. 213-222 ◽  
Author(s):  
Matthieu Weber ◽  
Mikhael Bechelany

AbstractSupported metallic nanoparticles (NPs) are essential for many important chemical processes. In order to implement precisely tuned NPs in miniaturized devices by compatible processes, novel nanoengineering routes must be explored. Atomic layer deposition (ALD), a scalable vapor phase technology typically used for the deposition of thin films, represents a promising new route for the synthesis of supported metallic NPs. Metal–organic frameworks (MOFs) are a new exciting class of crystalline porous materials that have attracted much attention in the recent years. Since the size of their pores can be precisely adjusted, these nanomaterials permit highly selective separation and catalytic processes. The combination of NPs and MOF is an emerging area opening numbers of applications, which still faces considerable challenges, and new routes need to be explored for the synthesis of these NPs/MOF nanocomposites. The aim of this paper is double: first, it aims to briefly present the ALD route and its use for the synthesis of metallic NPs. Second, the combination of ALD-grown NPs and MOFs has been explored for the synthesis of Pd NPs/MOF ZIF-8, and several selected examples were ALD-grown NPs and MOFs have been combined and applied gas separation and catalysis will be presented.


2019 ◽  
Vol 12 (1) ◽  
pp. 358-365 ◽  
Author(s):  
Cody E. Finke ◽  
Stefan T. Omelchenko ◽  
Justin T. Jasper ◽  
Michael F. Lichterman ◽  
Carlos G. Read ◽  
...  

Atomic layer deposition of TiO2 may be used to tune the catalytic activity of three metal oxide catalysts for two reactions.


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