Hierarchical MnO2 Located on Carbon Nanotubes for Enhanced Electrochemical Performance

10.1002/celc.201701110

2018-04-17

Abstract: Herein, we assembled an asymmetric supercapacitor (ASC) with high energy and power density based on porous MnO2/nitrogen‐doped carbon nanotubes (MnO2/NCNTs) in the positive electrode and chemical activated of nitrogen‐doped carbon nanotubes (ANCNTs)...

Artificial Interface Derived from Diphenyl Ether Additive for High‐Voltage LiNi0.5Mn1.5O4 Cathode

10.1002/celc.201800011

2018-04-16

Diphenyl ether (DPE) is investigated as a film‐forming additive to improve the cyclic stability of LiNi0.5Mn1.5O4 at high voltage and elevated temperature (55 °C). Addition of DPE in the baseline electrolyte significantly improves the capacity retention of Li...

Hydrogen Bonding Effects on the Reversible Reorganization of Organic Films Electrografted on Glassy Carbon Electrodes

10.1002/celc.201800148

2018-04-14

The electrochemical oxidation of tetrabutylammonium carboxylates derived from 6‐oxoheptanoic acid and 6‐heptynoic acid was performed on glassy carbon electrodes to generate covalently modified electrodes bearing alkyl‐ketone and alkynyl groups. These surfaces...

In situ Synthesis of V2O3‐Intercalated N‐doped Graphene Nanobelts from VOx‐Amine Hybrid as High‐Performance Anode Material for Alkali‐Ion Batteries

10.1002/celc.201800213

2018-04-06

V2O3 is a promising anode material for lithium‐ and sodium‐ion batteries due to its high theoretical capacity and natural abundance. However, the low conductivity, sluggish ion reaction kinetics, and large volume change limit the rate and cycling stability in...

Redox‐Active Copper‐Benzotriazole Stacked Multiwalled Carbon Nanotubes for the Oxygen Reduction Reaction

10.1002/celc.201800110

2018-04-06

A copper‐benzotriazole metal‐organic framework (MOF) was assembled on multiwalled carbon nanotubes (MWCNTs@BTAH‐Cu2+) by π‐π interaction, and the composite was used to catalyze the oxygen reduction reaction (ORR) in pH 7, 11, and 13. This electrode catalyzes ...

Electrochemical Biosensor for MicroRNA Detection Based on Cascade Hybridization Chain Reaction

10.1002/celc.201800255

2018-04-06

The development of effective strategies for sensitive and specific detection of microRNAs will facilitate clinical diagnostics. Here, we utilize cascade hybridization chain reaction as an enzyme‐free isothermal amplified strategy, and construct label‐free ele...

Flexible and Tailorable Alkylviologen/Cellulose Nanocrystals Composite Films for Sustainable Applications in Electrochromic Devices

10.1002/celc.201800113

2018-04-06

The new, sustainable, and pro‐environmental electrochromic devices (ECDs) have attracted tremendous attention due to the current issues regarding energy sources consumption and environmental pollution. A free‐standing composite film, consisting of cellulose n...

Oriented MoS2 Nanoflakes on N‐Doped Carbon Nanosheets Derived from Dodecylamine‐Intercalated MoO3 for High‐Performance Lithium‐Ion Battery Anodes

10.1002/celc.201800092

2018-04-06

MoS2 is a promising anode material for lithium‐ion batteries (LIBs) because of its layered structure, analogous to that of graphite, and high lithium storage capacity of 670 mAh g−1. However, its practical implementation in LIBs is hindered by poor conductivi...

In Situ Incorporation Strategy for Bimetallic FeCo‐Doped Carbon as Highly Efficient Bifunctional Oxygen Electrocatalysts

10.1002/celc.201800013

2018-04-06

Highly efficient bifunctional oxygen reduction reaction/oxygen evolution reaction (ORR/OER) electrocatalysts are of great significance for developing rechargeable metal–air batteries. A facile in situ incorporation strategy was proposed to introduce an iron‐b...

Effect of Ba Content on the Activity of La1‐xBaxMnO3 Towards the Oxygen Reduction Reaction

10.1002/celc.201800052

2018-04-06

The electrocatalytic activity of La1‐xBaxMnO3 nanoparticles towards the oxygen reduction reaction (ORR) is investigated as a function of the A‐site composition. Phase‐pure oxide nanoparticles with a diameter in the range of 40 to 70 nm were prepared by using ...