Graphene oxide in carbon nitride: from easily processed precursors to a composite material with enhanced photoelectrochemical activity and long-term stability

2019 ◽  
Vol 7 (19) ◽  
pp. 11718-11723 ◽  
Author(s):  
Guiming Peng ◽  
Jiani Qin ◽  
Michael Volokh ◽  
Chong Liu ◽  
Menny Shalom
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Charge Separation ◽  
Carbon Nitride ◽  
Photoelectrochemical Activity ◽  
Term Stability ◽  
Long Term Stability ◽  
Transfer Properties

Herein we report a facile method to grow an ordered carbon nitride (CN) layer with improved charge separation and transfer properties under illumination.

scholarly journals Hydrothermally reduced graphene oxide for the effective wrapping of sulfur particles showing long term stability as electrodes for Li-S batteries

Carbon ◽  
2018 ◽  
Vol 139 ◽  
pp. 226-233 ◽  
Author(s):  
J.L. Gómez-Urbano ◽  
J.L. Gómez-Cámer ◽  
C. Botas ◽  
N. Díez ◽  
J.M. López del Amo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Term Stability ◽  
Long Term Stability ◽  
Reduced Graphene

Electrolyte-imprinted graphene oxide–chitosan chelate with copper crosslinked composite electrodes for intense cyclic-stable, flexible supercapacitors

2017 ◽  
Vol 5 (4) ◽  
pp. 1380-1386 ◽  
Author(s):  
S. Selvam ◽  
B. Balamuralitharan ◽  
S. Jegatheeswaran ◽  
Mi-Young Kim ◽  
S. N. Karthick ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Electrodes ◽  
Flexible Electrodes ◽  
Term Stability ◽  
Long Term Stability ◽  
Flexible Supercapacitors

Electrolyte-imprinted and copper crosslinked hybrid flexible electrodes have been considered as long-term stability supercapacitors.

A bimetallic MOF@graphene oxide composite as an efficient bifunctional oxygen electrocatalyst for rechargeable Zn–air batteries

2020 ◽  
Vol 49 (17) ◽  
pp. 5730-5735 ◽  
Author(s):  
Yao Xiao ◽  
Beibei Guo ◽  
Jing Zhang ◽  
Chun Hu ◽  
Ruguang Ma ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Growth Strategy ◽  
Air Cathode ◽  
Discharge Performance ◽  
Oxide Composite ◽  
Term Stability ◽  
Long Term Stability ◽  
Charge Discharge

A bimetallic ZnCo-ZIF@graphene oxide (ZnCo-ZIF@GO) composite was synthesized via an in situ growth strategy. As the air cathode of Zn–air batteries, ZnCo-ZIF@GO showed good charge/discharge performance and long-term stability.

scholarly journals Universal Method for Producing Reduced Graphene Oxide/Gold Nanoparticles Composites with Controlled Density of Grafting and Long-Term Stability

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 602 ◽  
Author(s):  
Szustakiewicz ◽  
Kołsut ◽  
Leniart ◽  
Lewandowski
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hybrid Nanostructures ◽  
Ex Situ ◽  
Universal Method ◽  
Term Stability ◽  
Long Term Stability ◽  
Reduced Graphene

In this study, we report a universal approach allowing the non-covalent deposition of gold nanoparticles on reduced graphene oxide surface in a controlled fashion. We used a modified Hummers method to obtain graphene oxide, which then underwent surficial functionalization with carboxyl moieties coupled with simultaneous reduction. Nanoparticles were synthesized ex-situ and capped with a thiolated poly-ethylene glycol (PEG) ligand. The interactions between the surface of modified graphene oxide and nanoparticle ligands enabled the formation of stable hybrid graphene-nanoparticles materials in the aqueous phase. Using this technique, we were able to cover the surface of graphene with gold nanoparticles of different shapes (spheres, rods, triangles, stars, and bipyramids), broad range of sizes (from 5 nm to 100 nm) and controlled grafting densities. Moreover, materials obtained with this strategy exhibited long-term stability, which coupled with the versatility and facility of preparation, makes our technique appealing in the light of increasing demand for new graphene-based hybrid nanostructures.

Demonstration of enhanced carrier transport, charge separation, and long-term stability for photocatalytic water splitting by a rapid hot pressing process

2017 ◽  
Vol 5 (21) ◽  
pp. 10687-10695 ◽  
Author(s):  
Wei-Hsuan Hung ◽  
Kun-Lin Yang ◽  
Sz-Nian Lai ◽  
Chin-Ru Yang ◽  
Jing-Jong Shyue ◽  
...  
Keyword(s):  
Water Splitting ◽  
Applied Voltage ◽  
Charge Separation ◽  
Hot Pressing ◽  
Carrier Transport ◽  
Untreated Sample ◽  
Photocatalytic Water Splitting ◽  
Term Stability ◽  
Long Term Stability

The hot pressed sample demonstrated more than 6-fold enhancement compared to the untreated sample at an applied voltage of 1.2 V.

Enhanced stability and separation efficiency of graphene oxide membranes in organic solvent nanofiltration

2018 ◽  
Vol 6 (40) ◽  
pp. 19563-19569 ◽  
Author(s):  
Tiantian Gao ◽  
Haibo Wu ◽  
Lei Tao ◽  
Liangti Qu ◽  
Chun Li
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
Separation Efficiency ◽  
Term Stability ◽  
Long Term Stability ◽  
Organic Solvent Nanofiltration ◽  
Oxide Membranes ◽  
Enhanced Stability ◽  
Graphene Oxide Membranes

GO–BA membranes exhibited excellent nanofiltration performances and long-term stability for OSN with the assistance of BA polymers.

Improved Performance and Stability of Perovskite Solar Modules by Interface Modulating with Graphene Oxide Crosslinked CsPbBr3 Quantum Dots

2021 ◽  
Author(s):  
Shujing Zhang ◽  
Rui Guo ◽  
Haipeng Zeng ◽  
Yang Zhao ◽  
Xingyue Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Scaling Up ◽  
Term Stability ◽  
Performance Loss ◽  
Long Term Stability ◽  
Improved Performance ◽  
Cspbbr3 Quantum Dots

challenges of scaling up from laboratorial cells to industrial modules without serious performance loss while maintaining excellent long-term stability, owing to the resistive losses and extra instability factors that scale...

Long-term stability improvement of light-emitting diode using highly transparent graphene oxide paste

Nanoscale ◽  
2016 ◽  
Vol 8 (40) ◽  
pp. 17551-17559 ◽  
Author(s):  
Seungae Lee ◽  
Yun Ki Kim ◽  
Jyongsik Jang
Keyword(s):  
Graphene Oxide ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Term Stability ◽  
Long Term Stability
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