Efficient and Highly Transparent Ultra‐Thin Nickel‐Iron Oxy‐hydroxide Catalyst for Oxygen Evolution Prepared by Successive Ionic Layer Adsorption and Reaction

ChemPhotoChem ◽  
2019 ◽  
Vol 3 (10) ◽  
pp. 1050-1054 ◽  
Author(s):  
Ivan Garcia‐Torregrosa ◽  
Andrey Goryachev ◽  
Jan P. Hofmann ◽  
Emiel J. M. Hensen ◽  
Bert M. Weckhuysen
2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Daire Tyndall ◽  
Sonia Jaskaniec ◽  
Brian Shortall ◽  
Ahin Roy ◽  
Lee Gannon ◽  
...  

AbstractNickel–iron-layered double hydroxide (NiFe LDH) platelets with high morphological regularity and submicrometre lateral dimensions were synthesized using a homogeneous precipitation technique for highly efficient catalysis of the oxygen evolution reaction (OER). Considering edge sites are the point of activity, efforts were made to control platelet size within the synthesized dispersions. The goal is to controllably isolate and characterize size-reduced NiFe LDH particles. Synthetic approaches for size control of NiFe LDH platelets have not been transferable based on published work with other LDH materials and for that reason, we instead use postsynthetic treatment techniques to improve edge-site density. In the end, size-reduced NiFe LDH/single-wall carbon nanotube (SWCNT) composites allowed to further reduce the OER overpotential to 237 ± 7 mV (<L> = 0.16 ± 0.01 μm, 20 wt% SWCNT), which is one of the best values reported to date. This approach as well improved the long-term activity of the catalyst in operating conditions.


2021 ◽  
Vol 8 (3) ◽  
pp. 558-562
Author(s):  
Shan Chen ◽  
Shuaihu Jiang ◽  
Yuan Rao ◽  
Yi Dong ◽  
Junfei Bu ◽  
...  

ACS Omega ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 2665-2674
Author(s):  
Bijoy Chandra Ghos ◽  
Syed Farid Uddin Farhad ◽  
Md Abdul Majed Patwary ◽  
Shanta Majumder ◽  
Md. Alauddin Hossain ◽  
...  

2020 ◽  
Vol 217 (15) ◽  
pp. 2000002
Author(s):  
Tejasvinee S. Bhat ◽  
Sawanta S. Mali ◽  
Jyoti V. Patil ◽  
Shirish T. Killedar ◽  
Trishala R. Desai ◽  
...  

Nano Research ◽  
2021 ◽  
Author(s):  
Qikang Wu ◽  
Songrui Wang ◽  
Jiahui Guo ◽  
Xueqing Feng ◽  
Han Li ◽  
...  

2021 ◽  
Vol 11 (11) ◽  
pp. 1774-1780
Author(s):  
Shanji Fan ◽  
Hong Huang ◽  
Hong Chen ◽  
Jiachi Xu ◽  
Zecheng Hu ◽  
...  

A CdS nanocrystal enhanced TiO2 nanotubes (CdS@TiO2 NATs) photoelectrode was prepared via successive ionic layer adsorption and reaction (SILAR) of CdS on the surface of TiO2 NATs. A HS-aptamer owing a specific binding toward cytochrome c was modified onto the CdS@TiO2 NATs, which resulting a decrease in the photoelectrical current intensity. Cytochrome c is therefore quantified based on the decrease in photoelectrical current. High specificity and high sensitivity were obtained with a linear range from 3 pM to 80 nM, and a limit of detection of 2.53 pM.


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