Photocatalytic Carbon Dioxide Reduction: Exploring the Role of Ultrathin 2D Graphitic Carbon Nitride (g-C3N4)

2021 ◽  
pp. 131402
Author(s):  
Maansi Aggarwal ◽  
Soumen Basu ◽  
Nagaraj P. Shetti ◽  
Mallikarjuna N. Nadagouda ◽  
Eilhann E. Kwon ◽  
...  
2021 ◽  
Author(s):  
Qingqing Lu ◽  
Kamel Eid ◽  
Wenpeng Li ◽  
Aboubakr M Abdullah ◽  
Guobao Xu ◽  
...  

Carbon dioxide reduction reaction (CO2RR) to useful fuels/chemicals such as methane, formic, and methanol, is an innovative way to address looming energy and environmental issues. Graphitic carbon nitride (g-C3N4), as...


2018 ◽  
Vol 20 (18) ◽  
pp. 4206-4209 ◽  
Author(s):  
Lifei Liu ◽  
Jianling Zhang ◽  
Bingxing Zhang ◽  
Jinbiao Shi ◽  
Xiuniang Tan ◽  
...  

Here we propose the emulsification of CO2 and water with graphitic carbon nitride (g-C3N4), in which the g-C3N4-stabilized CO2 droplets were utilized as “microreactors” for in situ photocatalytic CO2 reduction.


Metals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 123
Author(s):  
Vlastimil Matějka ◽  
Mara Leonardi ◽  
Petr Praus ◽  
Giovanni Straffelini ◽  
Stefano Gialanella

In this study, graphitic carbon nitride (g-C3N4, labelled as gCN) was tested in the formulation of copper-free (Cu-free) friction mixtures, which are potentially interesting for brake pad manufacturing. Three formulations of friction composites were prepared starting from a common Cu-free master batch: (i) without graphite, (ii) with graphite and (iii) with gCN. The mixtures were pressed in the form of pins by hot-press moulding. The friction-wear performance of the prepared pins was investigated using a pin-on-disc (PoD) test at room temperature (RT), high temperature (HT) (400 °C) and, again, at room temperature (H-RT). The values of the friction coefficient (µ) for the composites with gCN (or graphite) were as follows: (i) RT test, µRT = 0.52 (0.47); (ii) HT test, µHT = 0.37 (0.37); (iii) RT after the HT tests, µH-RT = 0.49 (0.39). With respect to wear resistance, the samples with graphite performed better than the samples without this solid lubricant. To the best of our knowledge, this is the first report regarding the evaluation of the role of gCN in friction composites designed for automotive brake lining applications. The results indicate the main role of gCN as a soft abrasive.


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