A host–guest self-assembly strategy to enhance π-electron densities in ultrathin porous carbon nitride nanocages toward highly efficient hydrogen evolution

2021 ◽  
pp. 132880
Author(s):  
Yuan-Yuan Li ◽  
Bing-Xin Zhou ◽  
Hua-Wei Zhang ◽  
Tao Huang ◽  
Yi-Meng Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Porous Carbon ◽  
Self Assembly ◽  
Carbon Nitride ◽  
Electron Densities ◽  
Assembly Strategy ◽  
Highly Efficient

Double‐Solvent Induced Ultrafine Ruthenium Nanoparticles on Porous Carbon for Highly Efficient Hydrogen Evolution Reaction

ChemCatChem ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2880-2885 ◽  
Author(s):  
Zitao Zhang ◽  
Song Gao ◽  
Zibin Liang ◽  
Kexin Zhang ◽  
Huichuan Guo ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
Ruthenium Nanoparticles ◽  
Highly Efficient

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.

Effect of carbon and nitrogen double vacancies on the improved photocatalytic hydrogen evolution over porous carbon nitride nanosheets

2021 ◽  
Author(s):  
Huihui Li ◽  
Fuchun Ning ◽  
Xiaofei Chen ◽  
Anye Shi
Keyword(s):  
Hydrogen Evolution ◽  
Porous Carbon ◽  
Carbon Nitride ◽  
Soft Template ◽  
One Pot ◽  
Photocatalytic Hydrogen Evolution ◽  
Carbon And Nitrogen ◽  
Minimal Thickness ◽  
Carbon Nitride Nanosheets

Porous carbon nitride nanosheets with carbon and nitrogen double vacancies have been synthesized by soft template-supported one-pot method. Besides a highly defined and unambiguous structure, it also shows minimal thickness...

An interfacial self-assembly strategy to fabricate graphitic hollow porous carbon spheres for supercapacitor electrodes

Carbon ◽  
2021 ◽  
Vol 182 ◽  
pp. 860
Author(s):  
Xiao-hua Zhang ◽  
Xin-yu Gan ◽  
Bao-sheng Liu ◽  
Xiao-yan Yan ◽  
Xin-xin Zhao
Keyword(s):  
Porous Carbon ◽  
Self Assembly ◽  
Carbon Spheres ◽  
Assembly Strategy ◽  
Porous Carbon Spheres

Molecule Self-Assembly Synthesis of Porous Few-Layer Carbon Nitride for Highly Efficient Photoredox Catalysis

2019 ◽  
Vol 141 (6) ◽  
pp. 2508-2515 ◽  
Author(s):  
Yuting Xiao ◽  
Guohui Tian ◽  
Wei Li ◽  
Ying Xie ◽  
Baojiang Jiang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Carbon Nitride ◽  
Photoredox Catalysis ◽  
Highly Efficient

Efficient alkaline hydrogen evolution on atomically dispersed Ni–Nx Species anchored porous carbon with embedded Ni nanoparticles by accelerating water dissociation kinetics

2019 ◽  
Vol 12 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Chaojun Lei ◽  
Yu Wang ◽  
Yang Hou ◽  
Pan Liu ◽  
Jian Yang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Porous Carbon ◽  
Carbon Matrix ◽  
Water Dissociation ◽  
Ni Nanoparticles ◽  
Dissociation Kinetics ◽  
Highly Efficient ◽  
Alkaline Conditions

Atomically dispersed Ni–Nx species anchored porous carbon matrix with embedded Ni nanoparticles was synthesized for highly efficient hydrogen evolution in alkaline conditions.

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