Electrocatalytic hydrogen evolution of palladium nanoparticles electrodeposited on nanographene coated macroporous electrically conductive network

2018 ◽  
Vol 43 (4) ◽  
pp. 2171-2183 ◽  
Author(s):  
Renwei Tan ◽  
Dajun Wu ◽  
Shaohui Xu ◽  
Yiping Zhu ◽  
Dayuan Xiong ◽  
...  
2017 ◽  
Vol 5 (6) ◽  
pp. 2629-2639 ◽  
Author(s):  
Xin Tong ◽  
Dajun Wu ◽  
Chi Zhang ◽  
Kenan Lian ◽  
Dayuan Xiong ◽  
...  

Tetsubo-like Co(OH)2 nanorods are produced on a macroporous electrically conductive network by a pressurized hydrothermal method and show excellent HER performance.


2012 ◽  
Vol 182-183 ◽  
pp. 254-258
Author(s):  
Zhong Li Zhao ◽  
Zun Li Mo ◽  
Zhong Yu Chen

Cellulose/Ag/polyaniline conductive composite with rather excellent electrical conductivity was heterogeneously synthesized in this paper. The UV-Vis analysis indicated that homogeneous nanoAg particles deposited on the surface of cellulose in the form of globe particles. They offered some electrons to polyaniline chains. This behavior resulted to the facts that more polyaniline embedded on cellulose and an integrated electrically conductive network formed. Consequently, the high electrical conductivity of the composite was observed. The value was 3.48 S/cm, which was higher two magnitudes than the electrical conductivity of cellulose/polyaniline composite (2.15×10-2S/cm), and even was higher than the electrical conductivity of pure polyaniline (0.142 S/cm). This paper provided a facile method for the preparation of cellulose/Ag/ polyaniline composite with favorable electrical conductivity.


2018 ◽  
Vol 162 ◽  
pp. 01034
Author(s):  
Ali Majeed Al-Dahawi

The potential effects of curing age on the self-sensing (piezoresistivity) capability of carbon-based Engineered Cementitious Composites (ECC) specimens are under focus in the present study. This non-structural feature can be regarded as one of the best solutions for continuously monitoring of infrastructures in terms of damage and deformations. Carbon fibers which are a micro-scale electrically conductive material were added to the ECC matrix and well dispersed to create the electrically conductive network. This network is responsible for sensing the applied loads on the prismatic specimens. The self-sensing behavior of electrically conductive prismatic specimens under four-point monotonic flexural loading was investigated and compared with dielectric ECC specimens at four ages of curing (7, 28, 90 and 180 days). The results showed that the developed multifunctional cementitious composites can sense the changes in the applied flexural stresses and the resultant mid-span deflection along the adopted curing ages with an improvement in the later ages.


2017 ◽  
Vol 5 (6) ◽  
pp. 2987-2989 ◽  
Author(s):  
Dajun Wu ◽  
Shaohui Xu ◽  
Chi Zhang ◽  
Yiping Zhu ◽  
Dayuan Xiong ◽  
...  

Correction for ‘Three-dimensional homo-nanostructured MnO2/nanographene membranes on a macroporous electrically conductive network for high performance supercapacitors’ by Dajun Wu et al., J. Mater. Chem. A, 2016, 4, 11317–11329.


2018 ◽  
Vol 348 ◽  
pp. 26-34 ◽  
Author(s):  
Guangming Jiang ◽  
Kaifeng Wang ◽  
Jieyuan Li ◽  
Wenyang Fu ◽  
Zhiyong Zhang ◽  
...  

2018 ◽  
Vol 90 (9) ◽  
pp. 1379-1392 ◽  
Author(s):  
Nan Zhang ◽  
Shao-Hai Li ◽  
Xianzhi Fu ◽  
Yi-Jun Xu

Abstract Photocatalytic water splitting for hydrogen evolution as an attractive strategy for developing sustainable energy by utilizing sunlight has attracted enormous research efforts. Cadmium sulfide (CdS) with visible light response and proper energy band structure has been studied intensively. To suppress the recombination of charge carriers and facilitate the hydrogen evolution reaction (HER) over CdS, electrically conductive graphene and active-site-abundant MoS2 have proven to be efficient dual cocatalysts to improve the photocatalytic HER performance of CdS. In this review, we will focus on the representative ternary composite photocatalysts of CdS-graphene-MoS2. The synthesis approaches are first summarized, followed by the discussion of the roles of each component in the composites. Then main attention will be paid to highlighting the effects of the microscopic structures of the components on the photocatalytic performance of the composites for HER applications. It is expected that this review could be helpful to the rational design and further optimization of semiconductor-based composite photocatalysts through materials engineering strategies for solar energy conversion.


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