Photopolymerization performed under dark condition using long stored electrons in carbon nitride

2021 ◽  
Author(s):  
Guang Chen ◽  
Zidan Zhang ◽  
Wen-Jian Zhang ◽  
Lei Xia ◽  
Xuan Nie ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Chemical Energy ◽  
Dark Condition ◽  
Biochemical Reactions

In nature, the stored chemical energy and electrons as ATP and NADPH generated during irradiation could facilitate biochemical reactions under dark condition. However, in artificial photoreaction systems, it is still...

Enhanced solar-to-chemical energy conversion of graphitic carbon nitride by two-dimensional cocatalysts

EnergyChem ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 100051
Author(s):  
Chuanbiao Bie ◽  
Bei Cheng ◽  
Jiajie Fan ◽  
Wingkei Ho ◽  
Jiaguo Yu
Keyword(s):  
Energy Conversion ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Chemical Energy ◽  
Graphitic Carbon Nitride ◽  
Two Dimensional

2. How microbes operate

2014 ◽  
Author(s):  
Nicholas P. Money
Keyword(s):  
Energy Source ◽  
Liquid Water ◽  
Environmental Variables ◽  
Chemical Energy ◽  
Available P ◽  
Biochemical Reactions ◽  
Microbial Life ◽  
Eukaryotic Microorganisms ◽  
Additional Constraints ◽  
In Cells

‘How microbes operate’ considers the mechanisms that sustain prokaryotic and eukaryotic microorganisms. All active cells must be supplied with water and an energy source. Absorption of water is essential, even in extremely dry or salty habitats, because the enzymes that catalyse biochemical reactions in cells do not work unless they are hydrated. Sunlight powers the metabolism of photosynthetic microbes and others glean chemical energy from a plenitude of terrestrial sources. Extremes in temperature, acidity, and other environmental variables place additional constraints upon microbial life, but bacteria, archaea, and eukaryotic microorganisms thrive in most places where liquid water is available.

scholarly journals Oxygen-doped carbon nitride aerogel: A self-supported photocatalyst for solar-to-chemical energy conversion

2018 ◽  
Vol 236 ◽  
pp. 428-435 ◽  
Author(s):  
Wenjun Jiang ◽  
Qiushi Ruan ◽  
Jijia Xie ◽  
Xianjie Chen ◽  
Yongfa Zhu ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Carbon Nitride ◽  
Chemical Energy

scholarly journals Carbon nitride supported copper nanoparticles: light-induced electronic effect of the support for triazole synthesis

2016 ◽  
Vol 3 (11) ◽  
pp. 160580 ◽  
Author(s):  
Debkumar Nandi ◽  
Abu Taher ◽  
Rafique Ul Islam ◽  
Samarjeet Siwal ◽  
Meenakshi Choudhary ◽  
...  
Keyword(s):  
Reference Material ◽  
High Performance ◽  
Carbon Nitride ◽  
Electronic Effect ◽  
Electron Transition ◽  
Alkaline Condition ◽  
Dark Condition ◽  
Copper Nanoparticle ◽  
Hot Electron ◽  
Effect Of The Support

The composite framework of graphitic carbon nitride ( g CN) supported copper nanoparticle can act as a high-performance photoreactor for the synthesis of 1,2,3-triazole derivatives under light irradiation in the absence of alkaline condition. The photoactivity of g CN originates from an electron transition from the valence band to the conduction band, in the presence of photon energy, and the hot electron acts as a scavenger of the terminal proton of the alkyne molecule to facilitate the formation of copper acetanilide complex. In this study, we have performed the experiment under a different photonic environment, including dark condition, and in the presence and absence of base. A comparative study was also executed using Cu-TiO 2 system, as a reference material, in the support of our proposed mechanism. The recycling performance and the photocorrosion effect of the catalyst have also been reported in this study.

Preparation and characterization of thin films of carbon nitride

1995 ◽  
Vol 53 ◽  
pp. 104-105
Author(s):  
L. Wan ◽  
R. F. Egerton
Keyword(s):  
Carbon Nitride ◽  
Arc Discharge ◽  
Ion Beam ◽  
Chemical Vapor ◽  
Reactive Sputtering ◽  
Vacuum Arc ◽  
Specimen Preparation ◽  
Bonding Structure ◽  
Electron Energy Loss

INTRODUCTION Recently, a new compound carbon nitride (CNx) has captured the attention of materials scientists, resulting from the prediction of a metastable crystal structure β-C3N4. Calculations showed that the mechanical properties of β-C3N4 are close to those of diamond. Various methods, including high pressure synthesis, ion beam deposition, chemical vapor deposition, plasma enhanced evaporation, and reactive sputtering, have been used in an attempt to make this compound. In this paper, we present the results of electron energy loss spectroscopy (EELS) analysis of composition and bonding structure of CNX films deposited by two different methods.SPECIMEN PREPARATION Specimens were prepared by arc-discharge evaporation and reactive sputtering. The apparatus for evaporation is similar to the traditional setup of vacuum arc-discharge evaporation, but working in a 0.05 torr ambient of nitrogen or ammonia. A bias was applied between the carbon source and the substrate in order to generate more ions and electrons and change their energy. During deposition, this bias causes a secondary discharge between the source and the substrate.

Sustainable 2,5-furandicarboxylic synthesis by a direct 5-hydroxymethylfurfural fuel cell based on a bifunctional PtNiSx catalyst

2020 ◽  
Vol 56 (88) ◽  
pp. 13611-13614
Author(s):  
Jialu Wang ◽  
Xian Zhang ◽  
Guozhong Wang ◽  
Yunxia Zhang ◽  
Haimin Zhang
Keyword(s):  
Fuel Cell ◽  
Electric Energy ◽  
Value Added ◽  
Chemical Energy ◽  
New Type

A new type of direct 5-hydroxymethylfurfural (HMF) oxidation fuel cell based on a bifunctional PtNiSx/CB catalyst not only transformed chemical energy into electric energy but also converted HMF into value-added 2,5-furandicarboxylic (FDCA).

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