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Carbon quantum dots based charge bridge between photoanode and electrocatalysts for efficiency water oxidation

10.1016/j.electacta.2018.04.052

2018-04-09

Due to its earth abundant and excellent stability, metal oxide semiconductor attracts great attention in photoelectrochemical water splitting. However, its performance is restricted due to the high recombination rate of electron-hole pairs even modified with ...

Fabrication of three-dimensional carbon coating for SnO2/TiO2 hybrid anode material of lithium-ion batteries

10.1016/j.electacta.2018.04.044

2018-04-06

Herein, a unique nanostructure of TiO2@SnO2@3DC composite composed of three-dimensionally tussocky carbon coating porous TiO2/SnO2 quasi-nanospheres has been fabricated by a well-engineered strategy based on improvement of SnO2-based material lithium storage ...

A phenylenediamine-mediated organic electrolyte for high performance graphene-hydrogel based supercapacitors

10.1016/j.electacta.2018.04.009

2018-04-04

We prepare a novel redox-additive organic electrolyte containing phenylenediamine for a graphene-hydrogel supercapacitor. By adopting this electrolyte, significant capacity enhancement (47–596% increase) is achieved. At the concentration of 0.02 mol l−1, the ...

Lithiation heterogeneities of graphite according to C-rate and mass-loading: A model study

10.1016/j.electacta.2018.03.196

2018-04-03

Performance and durability of lithium-ion batteries highly rely on local conditions inside electrodes during operation. In this paper, local physical conditions inside a standard graphite electrode are explored at various C-rate and mass-loading with a physic...

Medulla tetrapanacis-derived O/N co-doped porous carbon materials for efficient oxygen reduction electrocatalysts and high-rate supercapacitors

10.1016/j.electacta.2018.04.001

2018-04-03

O/N co-doped porous carbon materials derived from biomass have become the most promising candidates for electrochemical energy conversion and storage due to their renewability and sustainability. We herein present a simple approach to fabricate O/N co-doped p...

Ultrahigh-content nitrogen-decorated nanoporous carbon derived from metal organic frameworks and its application in supercapacitors

10.1016/j.electacta.2018.03.200

2018-04-03

Single electric double-layer capacitors cannot meet the growing demand for energy due to their insufficient energy density. Generally speaking, the supercapacitors introduced with pseudo-capacitance by doping heteroatoms (N, O) in porous carbon materials can ...

Construction of layer-by-layer sandwiched graphene/polyaniline nanorods/carbon nanotubes heterostructures for high performance supercapacitors

10.1016/j.electacta.2018.03.198

2018-04-02

Integrating polyaniline (PANI) with different dimensional carbon materials is considered as a promising strategy to solve the disadvantages of PANI electrodes, such as low rate capability and poor cyclic stability. In this work, a novel layer-by-layer sandwic...

Micro-/mesoporous carbon nanofibers embedded with ordered carbon for flexible supercapacitors

10.1016/j.electacta.2018.03.199

2018-04-01

Currently carbon nanofibers are attracting myriad interest for supercapacitors due to their high specific capacitance and low cost. However, their poor electrical conductivity and microporous structure restrict their wide applications. Here, flexible micro-/m...

Self-supporting ethyl cellulose/poly(vinylidene fluoride) blended gel polymer electrolyte for 5 V high-voltage lithium-ion batteries

10.1016/j.electacta.2018.03.195

2018-03-31

A new gel polymer electrolyte (GPE) based on ethyl cellulose/poly(vinylidene fluoride) (EC/PVDF) blended polymer was prepared by immersion precipitation phase inversion. The structure of the porous membrane was controlled by the addition of EC. The performanc...

Preparation of polyvinylpyrrolidone-based polymer electrolytes and their application by in-situ gelation in dye-sensitized solar cells

10.1016/j.electacta.2018.03.194

2018-03-31

Polyvinylpyrrolidone (PVP), as a nitrogen-containing heterocyclic polymer, is a promising candidate for preparation of high performance iodide-based polymer electrolytes for dye-sensitized solar cells (DSSCs). In the present investigation, PVP electrolytes co...