A PdII Carbene Complex with Anthracene Side-Arms for π-Stacking on Reduced Graphene Oxide (rGO): Activity towards Undirected C-H Oxygenation of Arenes

2018 ◽  
Vol 2018 (43) ◽  
pp. 4742-4746 ◽  
Author(s):  
Maitham H. Majeed ◽  
Payam Shayesteh ◽  
Axel R. Persson ◽  
L. Reine Wallenberg ◽  
Joachim Schnadt ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Carbene Complex ◽  
Π Stacking ◽  
Reduced Graphene

scholarly journals In situ XAS study of the local structure and oxidation state evolution of palladium in a reduced graphene oxide supported Pd(ii) carbene complex during an undirected C–H acetoxylation reaction

2019 ◽  
Vol 9 (8) ◽  
pp. 2025-2031 ◽  
Author(s):  
Ning Yuan ◽  
Maitham H. Majeed ◽  
Éva G. Bajnóczi ◽  
Axel R. Persson ◽  
L. Reine Wallenberg ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Oxidation State ◽  
Local Structure ◽  
Carbene Complex ◽  
In Situ Xas ◽  
Reduced Graphene ◽  
State Evolution ◽  
Supported Pd

In situ XAS is used to reveal the evolution of palladium species during an undirected C–H acetoxylation reaction.

scholarly journals Reduced graphene oxide-intercalated graphene oxide nano-hybrid for enhanced photoelectrochemical water reduction

2019 ◽  
Vol 10 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Belete Asefa Aragaw
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrochemical Impedance ◽  
Morphological Properties ◽  
Stacking Interactions ◽  
Visible Absorption ◽  
Water Reduction ◽  
Π Stacking ◽  
Reduced Graphene ◽  
Uv Visible

Abstract This paper reports on the synthesis of reduced graphene oxide (RGO)-intercataled graphene oxide (GO) nano-hybrid and investigates its application in photoelectrochemical (PEC) water reduction. The optical, structural, and morphological properties of RGO-intercalated GO (RGO/GO) nano-hybrid were studied using UV–Visible spectroscopy, X-ray diffraction, and scanning electron microscopy, respectively. The reduction of GO to RGO was studied using FTIR spectroscopy. The XRD and FTIR investigation shows the strong π–π stacking interactions between the layered GO host–RGO guest sheets. An improvement in PEC water reduction activity was exhibited by RGO/GO nano-hybrid photoelectrode, with a maximum photocurrent of − 61.35 μA/cm2 for RGO 1 wt% in GO versus − 42.80 μA/cm2 for pristine GO photoelectrode (43% improvement). The mechanism for photocurrent enhancement was studied by electrochemical impedance analysis. The PEC performance enhancement of RGO/RO nano-hybrid photoelectrode is attributed to the strong π–π stacking interactions between RGO and GO, leading to superior electron collection and transportation by RGO and hence reduced charge carrier recombination. In addition, the UV–Visible absorption and Taut plot analysis showed the higher light harvesting efficiency of the RGO/GO compared to GO, displaying a band gap of 2.58 eV and 3.11 eV for RGO/GO and GO, respectively. The findings of this work show the potential of a strongly coupled layered host–guest nano-hybrids for high-performance optoelectronic materials. Graphic abstract

scholarly journals The effect of rigid phenoxyl substituent on the NH3-sensing properties of tetra-α-(4-tert-butylphenoxyl)-metallophthalocyanine/reduced graphene oxide hybrids

RSC Advances ◽  
2017 ◽  
Vol 7 (36) ◽  
pp. 22599-22609 ◽  
Author(s):  
Zheying Yu ◽  
Bin Wang ◽  
Yong Li ◽  
Di Kang ◽  
Zhimin Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Stacking Interactions ◽  
Sensing Properties ◽  
Assembly Method ◽  
Π Stacking ◽  
Sensing Material ◽  
Reduced Graphene

We report an enhanced NH3 sensing material formed by functionalization of reduced graphene oxide (rGO) with 1,8,15,22-tetra(4-tert-butylphenoxyl)metallophthalocyanine (TBPOMPc; M = Cu, Ni, Pb) via a solution self-assembly method based on π–π stacking interactions.

Non-covalent hydrophilization of reduced graphene oxide used as a paclitaxel vehicle

RSC Advances ◽  
2016 ◽  
Vol 6 (36) ◽  
pp. 30184-30193 ◽  
Author(s):  
Yu Liu ◽  
Han Zhong ◽  
Yu Qin ◽  
Yan Zhang ◽  
Xinfeng Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Stacking Interaction ◽  
Water Dispersible ◽  
Π Stacking ◽  
Reduced Graphene ◽  
Π Stacking Interaction

Phosphorylcholine oligomer grafted perylene (Perylene-PCn) was synthesized. By π–π stacking interaction of reduced graphene oxide (RGO) and perylene moiety, water dispersible RGO/Perylene-PCn composites were prepared and used as paclitaxel vehicle.

High Toughness Inorganic Solid Electrolytes via the Use of Reduced Graphene-Oxide

2020 ◽  
Author(s):  
Christos E. Athanasiou ◽  
Mok Yun Jin ◽  
Cristina Ramirez ◽  
Nitin P. Padture ◽  
Brian W. Sheldon
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Solid Electrolytes ◽  
High Toughness ◽  
Reduced Graphene
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