Hollow Co3 O4 Nanosphere Surrounded by N-Doped Graphitic Carbon Filled within Multilayer-Sandwiched Graphene Network: A High-Performance Anode for Lithium Storage

Inorganic Chemistry
Ranran DingMingming Chen

Abstract

We prepared a multilayer-sandwiched Co3O4/NGC/rGO composite by introducing in situ electrostatic self-assembly method with a subsequent thermal annealing induced Kirkendall effect. In the composite, the hollow Co3O4 nanospheres surrounded by N-doped graphitic carbon (NGC) layer are tightly sandwiched between the reduced graphene oxide (rGO) layers. The layer-by-layer multilayer-sandwiched structure and strong electrostatic interaction bring the space confinement effect and close electrical contact between different components, which greatly strengthen the durability of the electrode structure and electron/ion transport kinetics. Detailed characterization based on electrochemical impedance spectra (EIS) and cyclic voltammograms (CVs) tests confirms that the Co3O4/NGC/rGO electrode possesses accelerated electron/ion-transfer kinetics and enhanced surface-controlled capacitive behaviors. The discharging profile and its differential capacity curve further validate the existence of interfacial storage lithium in the composite, contributing to high reversible capacity. Consequently, benefiting from the synergistic effects of the multilevel controls in component and structure aspects, the Co3O4/NGC/rGO composite displays a superior re...Continue Reading

References

Jul 23, 2013·ACS Applied Materials & Interfaces·M V ReddyB V R Chowdari
Jun 16, 2018·Advanced Materials·Matthew LiKhalil Amine

❮ Previous
Next ❯

Citations

Mar 14, 2020·Nanoscale·Chengyang WangJingying Duan
Apr 24, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Tianxing WangShu Yi Wei

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.