Derivatization and interlaminar debonding of graphite–iron nanoparticle hybrid interfaces using Fenton chemistry

Literature Information

Publication Date 2017-03-31
DOI 10.1039/C7CP00357A
Impact Factor 3.676
Authors

Neha Agarwal, Ruma Bhattacharyya, Narendra K. Tripathi, Sanjay Kanojia, Debmalya Roy, Kingsuk Mukhopadhyay, Namburi Eswara Prasad


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Abstract

The interfacial debonding of graphite lattices using iron (Fe) nanoparticles and Fenton's reagent is reported, towards the scalable production of few-layer graphene flakes. Acoustic cavitation via a sonochemical route was adapted to produce iron and iron oxide nanoparticles in the graphite matrix. The oxygenated species were introduced into the graphite lattice using a physical method, and then Fenton chemistry was utilized to generate localized hydroxyl radicals at the Fe nanoparticle–graphite interfaces for zipping and self-exfoliation of the defected graphite lattices. The functional groups were found to have been introduced predominately at the periphery of the flake, confirming that the lateral dimension of graphene had not been affected, and at the same time, good dispersion in organic solvents had been achieved. Defect engineering could be modulated at the organic–inorganic hybrid interfaces, in order to control the zipping rate and regulate the degree of functionalization and the lateral dimensions of the graphene sheet.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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