scholarly journals Atomic layer deposition of Co3O4 nanocrystals on N-doped electrospun carbon nanofibers for oxygen reduction and oxygen evolution reactions

2019 ◽  
Vol 1 (3) ◽  
pp. 1224-1231 ◽  
Author(s):  
Mohammad Aref Khalily ◽  
Bhushan Patil ◽  
Eda Yilmaz ◽  
Tamer Uyar

We demonstrated atomic layer deposition of highly monodisperse Co3O4 nanocrystals on N-doped electrospun carbon nanofibers (Co@nCNFs) as bifunctional electrocatalysts for the ORR and OER.

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

2021 ◽  
Vol 2 (1) ◽  
pp. 100297
Author(s):  
Samuel M. Dull ◽  
Shicheng Xu ◽  
Timothy Goh ◽  
Dong Un Lee ◽  
Drew Higgins ◽  
...  

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.


2021 ◽  
Vol 9 (37) ◽  
pp. 21132-21141
Author(s):  
T. Kavinkumar ◽  
Selvaraj Seenivasan ◽  
Hyeonjung Jung ◽  
Jeong Woo Han ◽  
Do-Heyoung Kim

A synergistic strategy of interface engineering and surface modification is efficient to construct a promising bifunctional electrocatalyst for enhanced electrocatalytic water splitting.


2011 ◽  
Vol 115 (9) ◽  
pp. 3709-3715 ◽  
Author(s):  
Irene J. Hsu ◽  
Danielle A. Hansgen ◽  
Brian E. McCandless ◽  
Brian G. Willis ◽  
Jingguang G. Chen

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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