Cobalt tungsten oxide hydroxide hydrate (CTOHH) on DNA scaffold: an excellent bi-functional catalyst for oxygen evolution reaction (OER) and aromatic alcohol oxidation

2019 ◽  
Vol 48 (45) ◽  
pp. 17117-17131 ◽  
Author(s):  
Sangeetha Kumaravel ◽  
Prabaharan Thiruvengetam ◽  
Sivasankara Rao Ede ◽  
K. Karthick ◽  
S. Anantharaj ◽  
...  

CTOHH-DNA, a newly developed catalyst utilized for both electrocatalytic OER and aromatic alcohol oxidation reaction with excellent activities.

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xinheng Li ◽  
Lei Qi ◽  
Mei Wang

Transition metal oxide/ hydroxide is intensively studied for oxygen evolution reaction (OER). Herein, graphene-induced growth of Co3O4 nanoplates with modulable oxygen vacancies via hydrothermal treatment is reported. With the increase...


Author(s):  
Yuhou Pei ◽  
Zhenfeng Pi ◽  
Heng Zhong ◽  
Jiong Cheng ◽  
Fangming Jin

The sluggish oxygen evolution reaction (OER) is one of the main bottlenecks for efficient CO2 electroreduction (CO2ER). Seeking a suitable organic oxidation reaction with a lower redox potential to replace...


2021 ◽  
Vol 9 ◽  
Author(s):  
Yubing Yan

Developing efficient and low-cost replacements for noble metals as electrocatalysts for the oxygen evolution reaction (OER) remain a great challenge. Herein, we report a needle-like cobalt carbonate hydroxide hydrate (Co(CO3)0.5OH·0.11H2O) nanoarrays, which in situ grown on the surface of carbon cloth through a facile one-step hydrothermal method. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterizations demonstrate that the Co(CO3)0.5OH nanoarrays with high porosity is composed of numerous one-dimensional (1D) nanoneedles. Owing to unique needle-like array structure and abundant exposed active sites, the Co(CO3)0.5OH@CC only requires 317 mV of overpotential to reach a current density of 10 mA cm−2, which is much lower than those of Co(OH)2@CC (378 mV), CoCO3@CC (465 mV) and RuO2@CC (380 mV). For the stability, there is no significant attenuation of current density after continuous operation 27 h. This work paves a facile way to the design and construction of electrocatalysts for the OER.


2021 ◽  
Author(s):  
Zhixin Dai ◽  
Xiaoqiang Du ◽  
Yanhong Wang ◽  
Xinghua Han ◽  
Xiaoshuang Zhang

Spinel ferrites are considered as practical and promising oxygen evolution reaction (OER) and urea oxidation reaction (UOR) electrocatalysts because of their advantages in adsorption and activation of electrocatalytic substances. CeO2...


Nanoscale ◽  
2020 ◽  
Vol 12 (46) ◽  
pp. 23596-23606
Author(s):  
Rohit G. Jadhav ◽  
Apurba K. Das

Pulse-electrodeposited organic–inorganic nanohybrids (BSeFL/Ni(OH)2), which act as electrocatalysts for the electrochemical oxygen evolution reaction (OER) and urea oxidation reaction (UOR), have been synthesised at different reduction potentials.


2022 ◽  
Author(s):  
Jiaxin Li ◽  
Hongyi Cui ◽  
Xiaoqiang Du ◽  
Xiaoshuang Zhang

At present, global resources are nearly exhausted and environmental pollution is becoming more and more serious, so it is urgent to develop efficient catalysts for hydrogen production. Herein, the nitrogen...


Author(s):  
Jin-Han Guo ◽  
Xuming Wei ◽  
Wei-Yin Sun

SO2 electro-oxidation reaction (SO2OR) is a feasible tactic to alleviate SO2 pollution and an alternative to the oxygen evolution reaction (OER) in the electro-production of H2. However, the efficient SO2OR...


Author(s):  
Mei Zhang ◽  
Ziqiang Wang ◽  
Zhongyao Duan ◽  
Shengqi Wang ◽  
You Xu ◽  
...  

Replacing sluggish anodic oxygen evolution reaction with thermodynamically favorable hydrazine oxidation reaction (HzOR) is a powerful energy-saving approach for hydrogen production, and the efficiency of this process mainly relies on...


2021 ◽  
Vol 45 (39) ◽  
pp. 18482-18490
Author(s):  
Xiaoqiang Wu ◽  
Chaoyou Yong ◽  
Xuguang An ◽  
Qingquan Kong ◽  
Weitang Yao ◽  
...  

Ni–Cu alloy-based nanomaterials are representative cost-effective materials that have been widely used as highly active and stable electrocatalysts for electrochemical energy applications, such as the water oxidation reaction, the methanol/ethanol reaction and many other small molecule oxidation reactions.


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