Self‐Supported Nanotube Arrays of Sulfur‐Doped TiO₂ Enabling Ultrastable and Robust Sodium Storage

Abstract

Self-supported nanotube arrays of sulfur-doped TiO2 on metal substrates are fabricated using electrochemical anodization and subsequent sulfidation. The nanotube arrays can serve as an efficient anode for sodium storage, enabling ultrastable cycling (retaining 91% of the 2nd capacity up to 4400 cycles) and robust rate capability (167 mA h g(-1) at 3350 mA g(-1)), remarkably outperforming any other reported TiO2 -based electrodes.

Photocatalytic reduction of CO 2 with H 2 O over graphene oxide-supported oxygen-rich TiO 2 hybrid photocatalyst under visible light irradiation: Process and kinetic studies

“…Despite that, pure unmodified TiO 2 suffers from several drawbacks such as low quantum efficiency resulting from rapid recombination of charge carriers and the limit to UV-light absorption due to its wide band gap [29][30][31][32][33]. Great endeavours have been made to resolve these drawbacks, including cationic metal and anionic doping to manipulate the properties of TiO 2 [34][35][36][37][38][39][40][41][42][43][44]. However, these techniques could result in the generation of secondary impurities and oxygen vacancies, respectively, which could ultimately reduce the photocatalytic activity of TiO 2 [45,46].…”

Phosphorus Enhanced Intermolecular Interactions of SnO2 and Graphene as an Ultrastable Lithium Battery Anode

“…Rechargeable lithium ion batteries (LIBs) based on graphite/LiCoO 2 , since the initial introduction by the Sony corporation, have been widely applied in portable electronic devices and created a revolution in battery technology as well as a marked swing away from the relatively low‐voltage, water‐based systems such as nickel–cadmium and nickel–metal hydride batteries and high‐temperature systems due to their high energy densities, high energy efficiencies and a long life span . However, graphite with a low theoretical capacity of 372 mAh g −1 results in a device energy density of about 150 Wh kg −1 , which is far from the electric vehicles requirements.…”

Bifunctional Conducting Polymer Coated CoP Core–Shell Nanowires on Carbon Paper as a Free‐Standing Anode for Sodium Ion Batteries

“…[15][16][17] The metal phosphide arrays www.advenergymat.de www.advancedsciencenews.com (e.g., Cu 3 P nanowires, [18] CoP nanorods, [19] Zn 3 P 2 nanowires, [20] Ni 2 P nanorods [21] ) were directly grown on different conductive substrates such as Cu foil, carbon cloth, nickel foam, and stainless steel. [15][16][17] The metal phosphide arrays www.advenergymat.de www.advancedsciencenews.com (e.g., Cu 3 P nanowires, [18] CoP nanorods, [19] Zn 3 P 2 nanowires, [20] Ni 2 P nanorods [21] ) were directly grown on different conductive substrates such as Cu foil, carbon cloth, nickel foam, and stainless steel.…”