Carbon-encapsulated multi-phase nanocomposite of W2C@WC1−x as a highly active and stable electrocatalyst for hydrogen generation

Nanoscale ◽  
2018 ◽  
Vol 10 (45) ◽  
pp. 21123-21131 ◽  
Author(s):  
Inha Kim ◽  
Sung-Woo Park ◽  
Dong-Wan Kim

A new strategy for the synthesis of carbon-encapsulated tungsten carbide nanoparticles is demonstrated for highly stable electrocatalysis for hydrogen evolution.

RSC Advances ◽  
2014 ◽  
Vol 4 (55) ◽  
pp. 28947-28955 ◽  
Author(s):  
Halil Durak ◽  
Mehmet Gulcan ◽  
Mehmet Zahmakiran ◽  
Saim Ozkar ◽  
Murat Kaya

Nanohydroxyapatite-supported ruthenium(0) nanoparticles formed in situ during the hydrolysis of AB have been found to be a highly active catalyst in the generation of hydrogen from aqueous AB solution.


2021 ◽  
Vol 9 ◽  
Author(s):  
Lin Wei ◽  
Deqian Zeng ◽  
Zongzhuo Xie ◽  
Qingru Zeng ◽  
Hongfei Zheng ◽  
...  

Designing low-cost, environment friendly, and highly active photocatalysts for water splitting is a promising path toward relieving energy issues. Herein, one-dimensional (1D) cadmium sulfide (CdS) nanorods are uniformly anchored onto two-dimensional (2D) NiO nanosheets to achieve enhanced photocatalytic hydrogen evolution. The optimized 2D/1D NiO/CdS photocatalyst exhibits a remarkable boosted hydrogen generation rate of 1,300 μmol h−1 g−1 under visible light, which is more than eight times higher than that of CdS nanorods. Moreover, the resultant 5% NiO/CdS composite displays excellent stability over four cycles for photocatalytic hydrogen production. The significantly enhanced photocatalytic activity of the 2D/1D NiO/CdS heterojunction can be attributed to the efficient separation of photogenerated charge carriers driven from the formation of p-n NiO/CdS heterojunction. This study paves a new way to develop 2D p-type NiO nanosheets-decorated n-type semiconductor photocatalysts for photocatalytic applications.


2021 ◽  
Author(s):  
Luyan Guo ◽  
Guiyang Yu ◽  
Haitao Zhao ◽  
Chuanwang Xing ◽  
Yujia Hu ◽  
...  

Facilitating charge separation as well as surface redox reactions is considered to be an efficient way to improving semiconductor-based photocatalytic hydrogen generation. In this contribution, we developed a highly active...


Nanoscale ◽  
2015 ◽  
Vol 7 (25) ◽  
pp. 10974-10981 ◽  
Author(s):  
Xiulin Yang ◽  
Ang-Yu Lu ◽  
Yihan Zhu ◽  
Shixiong Min ◽  
Mohamed Nejib Hedhili ◽  
...  

High surface area FeP nanosheets on a carbon cloth were prepared by gas phase phosphidation of electroplated FeOOH, which exhibit exceptionally high catalytic efficiency and stability for hydrogen generation.


ACS Catalysis ◽  
2021 ◽  
pp. 8174-8182
Author(s):  
Kailu Guo ◽  
Yantao Wang ◽  
Junfeng Huang ◽  
Min Lu ◽  
Hua Li ◽  
...  

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xiaoshuang Chen ◽  
Meina Ju ◽  
Kun Song ◽  
Guoli Chen ◽  
Rui Yang ◽  
...  

Hydrogen generation via water electroreduction is a pivotal portion of exploiting clean-energy skills. Nevertheless, developing a low price and high-performance catalytic activity substance to take the place of expensively precious...


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