Monodisperse NiPd alloy nanoparticles decorated on mesoporous graphitic carbon nitride as a catalyst for the highly efficient chemoselective reduction of α,β-unsaturated ketone compounds

2020 ◽  
Vol 44 (32) ◽  
pp. 13606-13612 ◽  
Author(s):  
Cetin Bayrak ◽  
Abdullah Menzek ◽  
Melike Sevim
Keyword(s):  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Transfer Hydrogenation ◽  
Graphitic Carbon Nitride ◽  
Unsaturated Ketone ◽  
Alloy Nanoparticles ◽  
Catalytic Transfer Hydrogenation ◽  
Unsaturated Ketones ◽  
Highly Efficient ◽  
Catalytic Transfer

The study reported chemoselective reduction with selectivity (>99%) by the catalytic transfer hydrogenation of α,β-unsaturated ketones with a catalyst of NiPd alloy nanoparticles decorated on mesoporous graphitic carbon nitride (NiPd/mpg-C3N4).

Nickel–platinum nanoparticles immobilized on graphitic carbon nitride as highly efficient catalyst for hydrogen release from hydrous hydrazine

RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 31687-31691 ◽  
Author(s):  
Lixin Xu ◽  
Na Liu ◽  
Bing Hong ◽  
Ping Cui ◽  
Dang-guo Cheng ◽  
...  
Keyword(s):  
Alkaline Solution ◽  
Platinum Nanoparticles ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Hydrogen Release ◽  
Graphitic Carbon Nitride ◽  
Alloy Nanoparticles ◽  
Efficient Catalyst ◽  
Highly Efficient ◽  
Nickel Platinum

Here we demonstrate that the combination of NiPt alloy nanoparticles with a graphitic carbon nitride (g-C3N4) support facilitates H2 production from hydrous hydrazine in an alkaline solution under moderate conditions.

scholarly journals Band Engineering and Morphology Control of Oxygen-Incorporated Graphitic Carbon Nitride Porous Nanosheets for Highly Efficient Photocatalytic Hydrogen Evolution

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yunyan Wu ◽  
Pan Xiong ◽  
Jianchun Wu ◽  
Zengliang Huang ◽  
Jingwen Sun ◽  
...  
Keyword(s):  
Surface Area ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Separation Efficiency ◽  
Physical Adsorption ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Hydrogen Evolution ◽  
Band Engineering ◽  
Highly Efficient

AbstractGraphitic carbon nitride (g-C3N4)-based photocatalysts have shown great potential in the splitting of water. However, the intrinsic drawbacks of g-C3N4, such as low surface area, poor diffusion, and charge separation efficiency, remain as the bottleneck to achieve highly efficient hydrogen evolution. Here, a hollow oxygen-incorporated g-C3N4 nanosheet (OCN) with an improved surface area of 148.5 m2 g−1 is fabricated by the multiple thermal treatments under the N2/O2 atmosphere, wherein the C–O bonds are formed through two ways of physical adsorption and doping. The physical characterization and theoretical calculation indicate that the O-adsorption can promote the generation of defects, leading to the formation of hollow morphology, while the O-doping results in reduced band gap of g-C3N4. The optimized OCN shows an excellent photocatalytic hydrogen evolution activity of 3519.6 μmol g−1 h−1 for ~ 20 h, which is over four times higher than that of g-C3N4 (850.1 μmol g−1 h−1) and outperforms most of the reported g-C3N4 catalysts.

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