scholarly journals Modulation engineering of alkaline oxygen evolution reaction based on microwave activation of Ni, Fe bimetal doped MnO2

2022 ◽  
Vol 162 ◽  
pp. 106380
Author(s):  
Yu Ma ◽  
Meng-Xuan Li ◽  
Hui-Ying Wang ◽  
Youhe Wang ◽  
Ning Yu ◽  
...  
2019 ◽  
Vol 55 (63) ◽  
pp. 9347-9350 ◽  
Author(s):  
Lei Zhong ◽  
Yufei Bao ◽  
Xu Yu ◽  
Ligang Feng

An Fe doped NiTe bulk crystal was demonstrated to exhibit an extremely active and stable performance for the electrochemical oxygen evolution reaction.


Coatings ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 695 ◽  
Author(s):  
Mengjie Zhang ◽  
Wenchang Zhu ◽  
Xingzhe Yang ◽  
Meng Feng ◽  
Hongbin Feng

Few-layer exfoliated black phosphorus (Ex-BP) has attracted tremendous attention owing to its promising applications, including in electrocatalysis. However, it remains a challenge to directly use few-layer Ex-BP as oxygen-involved electrocatalyst because it is quite difficult to restrain structural degradation caused by spontaneous oxidation and keep it stable. Here, a robust carbon-stabilization strategy has been implemented to prepare carbon-coated Ex-BP/N-doped graphene nanosheet (Ex-BP/NGS@C) nanostructures at room temperature, which exhibit superior oxygen evolution reaction (OER) activity under alkaline conditions. Specifically, the as-synthesized Ex-BP/NGS@C hybrid presents a low overpotential of 257 mV at a current density of 10 mA cm−2 with a small Tafel slope of 52 mV dec−1 and shows high durability after long-term testing.


Small Science ◽  
2021 ◽  
pp. 2100011
Author(s):  
Zongkui Kou ◽  
Xin Li ◽  
Lei Zhang ◽  
Wenjie Zang ◽  
Xiaorui Gao ◽  
...  

2021 ◽  
Author(s):  
Ning Liu ◽  
Qiaoqiao Zhang ◽  
Jingqi Guan

Seeking for low-cost and high-performance electrocatalysts for oxygen evolution reaction (OER) has drawn enormous research interest in the last few years. Reported herein is the topotactic construction of a binuclear...


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.


Author(s):  
Julio Lloret Fillol ◽  
Alberto Bucci ◽  
Miguel García-Tecedor ◽  
Sacha Corby ◽  
Reshma Rao ◽  
...  

Oxygen evolution reaction (OER) is a fundamental process to develop a technology that can drive the energy transition towards renewable and sustainable fuels. Nevertheless, efficient and straightforward methodologies to obtain...


ACS Catalysis ◽  
2021 ◽  
pp. 10043-10057
Author(s):  
Steffen Czioska ◽  
Alexey Boubnov ◽  
Daniel Escalera-López ◽  
Janis Geppert ◽  
Alexandra Zagalskaya ◽  
...  

2021 ◽  
Author(s):  
Arjun BalaKrishnan ◽  
Niclas Blanc ◽  
Ulrich Hagemann ◽  
Parham Gemagami ◽  
Kevin Wonner ◽  
...  

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