scholarly journals Low‐Coordinate Iridium Oxide Confined on Graphitic Carbon Nitride for Highly Efficient Oxygen Evolution

2019 ◽  
Vol 58 (36) ◽  
pp. 12540-12544 ◽  
Author(s):  
Jiayi Chen ◽  
Peixin Cui ◽  
Guoqiang Zhao ◽  
Kun Rui ◽  
Mengmeng Lao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Carbon Nitride ◽  
Iridium Oxide ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Highly Efficient

scholarly journals Low‐Coordinate Iridium Oxide Confined on Graphitic Carbon Nitride for Highly Efficient Oxygen Evolution

2019 ◽  
Vol 131 (36) ◽  
pp. 12670-12674 ◽  
Author(s):  
Jiayi Chen ◽  
Peixin Cui ◽  
Guoqiang Zhao ◽  
Kun Rui ◽  
Mengmeng Lao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Carbon Nitride ◽  
Iridium Oxide ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Highly Efficient

Design of highly-efficient g-C3N4 based metal monoatom catalysts by two extra-NM1 atoms: Density functional theory simulations

2021 ◽  
Author(s):  
Miaogen Chen ◽  
Wenya Chang ◽  
Yaxin Shi ◽  
Wei Liu ◽  
Can Li
Keyword(s):  
Density Functional Theory ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Density Functional ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Functional Theory ◽  
Highly Efficient

Graphitic carbon nitride (g-C3N4) is recognized as a favorable substrate of monoatom catalyst due to its uniform nanoholes for anchoring the metal monoatom, while the oxygen evolution reaction (OER) overpotential...

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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