Lead–Steel Layered Composite Electrode for Adiponitrile Production: Preparation and Electrochemical Properties

2022 ◽  
Author(s):  
Yang Xu ◽  
Zhaohui Han ◽  
Peixian Zhu ◽  
Shenggang Zhou
Keyword(s):  
Electrochemical Properties ◽  
Composite Electrode ◽  
Layered Composite ◽  
Production Preparation

Preparation and electrochemical properties of Al/TiB2/β-PbO2 layered composite electrode materials for electrowinning of nonferrous metals

2018 ◽  
Vol 44 (15) ◽  
pp. 18420-18428 ◽  
Author(s):  
Zhaohui Han ◽  
Lei Xu ◽  
Chandrasekar Srinivasa Kannan ◽  
Jianhua Liu ◽  
Sivasankar Koppala ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Layered Composite ◽  
Nonferrous Metals

Preparation and electrochemical properties of lead-steel layered composite electrode materials for adiponitrile production

2021 ◽  
Author(s):  
Yang Xu ◽  
Zhaohui Han ◽  
Peixian Zhu ◽  
Shenggang Zhou
Keyword(s):  
Phase Composition ◽  
Electrochemical Properties ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Layered Composite ◽  
Reduction Ratio ◽  
Rolling Reduction ◽  
Composite Electrodes ◽  
Roll Bonding ◽  
Bonding Technology

Abstract In this paper, Pb-63%Sn alloy was selected as an intermediate layer to plate on Q235 steel by the hot dipping method, and then the hot-dipped steel and the lead plate were welded by roll-bonding technology to prepare the lead-steel layered composite electrode materials. Scanning electron microscopy (SEM), Energy dispersion spectrum (EDS) and X-ray diffraction (XRD) were used to characterize the interface morphology and phase composition of samples, and the interface formation mechanism was also discussed. The electrochemical properties of the lead-steel layered composite electrode under different rolling reduction ratio were studied by linear sweep voltammetry (LSV), Tafel polarization curves (Tafel) and weight-loss method. Subsequently, the prepared lead-steel layered composite electrodes were applied to the industrial production experiment for adiponitrile. The results indicated that lead-steel layered composite electrodes with excellent electrochemical properties were successfully prepared by hot dipping and roll-bonding technology. Analysis of microstructure and phase composition showed that the metallurgical bond of hot-dipped steel and lead plate could be achieved by the process of rolling, and the fracture feature was ductile fracture. And the conductivity, electrocatalytic activity and corrosion resistant of lead-steel layered composite electrode material were improved with the increase of rolling reduction ratio. The industrial production results showed that, compared with the traditional Pb-0.6%Ag electrode, the prepared lead-steel layered composite electrode at the rolling reduction ratio of 40% exhibited the best industrial performance, the current efficiency was increased by 4.94%, the average cell voltage was reduced by 19.4%, and the adiponectin yield was increased by 4.86%.

scholarly journals Preparation and Electrochemical Properties of Functionalized Graphene/Polyaniline Composite Electrode Materials

2014 ◽  
Vol 30 (9) ◽  
pp. 1659-1666 ◽  
Author(s):  
WANG Li-Li ◽  
◽  
XING Rui-Guang ◽  
ZHANG Bang-Wen ◽  
HOU Yuan
Keyword(s):  
Electrochemical Properties ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Functionalized Graphene

scholarly journals In Situ Construction of Ag/Ni(OH)2 Composite Electrode by Combining Electroless Deposition Technology with Electrodeposition

Metals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 826
Author(s):  
Sa Lv ◽  
Fan Yang ◽  
Xuefeng Chu ◽  
Huan Wang ◽  
Jia Yang ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Electroless Deposition ◽  
Composite Electrode ◽  
Coulombic Efficiency ◽  
Copper Substrate ◽  
High Specific Capacitance ◽  
Growth Strategy ◽  
Equivalent Series Resistance ◽  
Deposition Technology

The Ag/Ni(OH)2 composite electrode has been designed and in situ constructed on a copper substrate by combining electroless deposition technology with electrodeposition. The products can be directly used as a high performance binder free electrode. The synergistic effect between the Ag nanocubes (AgNCs) as backbones and the deposited Ni(OH)2 as the shell can significantly improve the electrochemical properties of the composite electrode. Moreover, this in situ growth strategy forms a strong bonding force of active materials to the substrate, which can improve the cycling performance and lower the equivalent series resistance. The Ag/Ni(OH)2 composite electrode exhibits enhanced electrochemical properties with a high specific capacitance of 3.704 F cm−2, coulombic efficiency of 88.3% and long-term cyclic stability.

Fabrication of flexible reduced graphene oxide–TiO2 freestanding films for supercapacitor application

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9904-9911 ◽  
Author(s):  
Jinsu Kim ◽  
Wai-Hwa Khoh ◽  
Boon-Hong Wee ◽  
Jong-Dal Hong
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Properties ◽  
Reduced Graphene Oxide ◽  
Composite Electrode ◽  
Layer Structure ◽  
Free Standing ◽  
Vacuum Filtration ◽  
Supercapacitor Application ◽  
Filtration System ◽  
Reduced Graphene

A rGO/TiO2 free standing film has been fabricated via a simple and facile vacuum filtration system. The composite electrode showed improved electrochemical properties compared to the pure rGO due to the highly expanded layer-structure.

scholarly journals The influence of carbon additive on the electrochemical behaviors of Fe2O3/C electrodes in alkaline solution

2018 ◽  
Vol 56 (1) ◽  
pp. 24
Author(s):  
Trinh Tuan Anh ◽  
Doan Ha Thang ◽  
Bui Thi Hang
Keyword(s):  
Iron Oxide ◽  
Electrochemical Properties ◽  
Alkaline Solution ◽  
Redox Reaction ◽  
Composite Electrode ◽  
Binder Content ◽  
Fe2o3 Nanoparticles ◽  
Active Materials ◽  
Electrochemical Behaviors ◽  
Air Battery

Acetylene Black (AB) and Fe2O3 nanoparticles were used as the additive and active materials, respectively for preparing Fe2O3/AB composite electrode. The effects of carbon additive and binder content on the electrochemical properties of Fe2O3/AB electrodes in alkaline solution were investigated to find the suitable anode for the Fe/air battery. The results of electrochemical measurements showed that both the AB additive and binder content significantly affected on the electrochemical behaviors of Fe2O3/AB electrodes. AB additive improves in redox reaction of iron oxide.

Graphene-NiO Composite Electrode for Supercapacitors

2011 ◽  
Vol 345 ◽  
pp. 75-78 ◽  
Author(s):  
Wei Zhou ◽  
Man Lin Tan ◽  
Xiao Song Zhou
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Composite Electrode ◽  
Electrochemical Impedance ◽  
Graphene Sheets ◽  
Supercapacitor Electrode ◽  
Scan Rate

In this paper, a facilesolution method was employed to synthesize the graphene-NiO composite. SEM and XRD results indicated the graphene sheets were covered by the NiO nanoplates. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used to measure the electrochemical properties of the composite. The specific capacitance reached 1292F/g at a scan rate of 5mV/s. The results show that this composite is a promising material for supercapacitor electrode.

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