Selective Phosphorization Boosting High-Performance NiO/NiCoP Microspheres as Anode Materials for Lithium Ion Batteries.

Phosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCoO to NiO/NiCoP microspheres was realized as an efficient route to enhance the electrochemical lithium storage properties of bimetal Ni-Co based anode materials. The results show that varying phosphorizaed reagent amount can significantly affect the transformation of crystalline structure from NiCoO to intermediate NiO, hybrid NiO/NiCoP, and, finally, to NiCoP, during which alterated sphere morphology, shifted surface valance, and enhanced lithium-ion storage behavior are detected.

Polyaniline nanorods random assembly on sugarcane bagasse pith-based carbon sheets with promising capacitive performance.

Polyaniline (PANI) nanorods were randomly deposited on oxidized 2D sugarcane pith-based porous carbon nanosheets by using dilute polymerization methods. The random stacked morphology of the PANI nanorods on the oxidized pith-based porous carbon nanosheets (SPCN) can be effectively controlled by simply changing the molar mass of aniline monomer. When the molar mass of the aniline monomer is increased to 0.

Facile fabrication of hierarchical film composed of Co(OH)@Carbon nanotube core/sheath nanocables and its capacitive performance.

A hierarchical film composed of Co(OH)@carbon nanotube (CNT) core/sheath nanocables (CCNF) was generated a simple and rapid electrophoretic deposition method. It is found that the Co(OH) sheath was uniformly anchored on the surface of conductive CNT core. The Co(OH) sheath, with a thickness of ∼20 nm, was composed of numerous very tiny nanoparticles.

Heteroatom-doped porous carbons derived from moxa floss of different storage years for supercapacitors.

Two novel carbons (MCs) derived from moxa floss of different storage years have been prepared by two low-cost and facile approaches, which are hydrothermal carbonization at a low temperature (200 °C) and direct pyrolysis at a moderate temperature (500 °C) followed by potassium hydroxide (KOH) activation strategy at a high temperature (800 °C), respectively. The physicochemical properties of MCs are investigated by Raman spectra, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and nitrogen adsorption-desorption isotherms. Results show that MCs derived from moxa floss of different storage years by two facile approaches possess different morphologies: MCs by hydrothermal carbonization (denoted as MC-1, MC-2 and MC-3) exhibit porous nanosheet structures, the highest specific surface area is about 1788.

Cellulose nanofibril based graft conjugated polymer films act as a chemosensor for nitroaromatic.

A cellulose nanofibril film is modified by chemical assembly of boronate-terminated conjugated polymer chains at its specific sites, C-6 carboxyl groups. The modified cellulose nanofibril film is used as a fluorescent sensor for nitroaromatic vapor. Thanks to the specific reactive sites, numerous loose cavities or pathways located in the film sensor's out-layer have been formed, and the fraction of easily accessible cavities of the novel fluorescent film sensor is up to 0.

Cellulose nanofiber/single-walled carbon nanotube hybrid non-woven macrofiber mats as novel wearable supercapacitors with excellent stability, tailorability and reliability.

Non-woven macrofiber mats are prepared by simply controlling the extrusion patterns of cellulose nanofiber/single-walled carbon nanotube suspensions in an ethanol coagulation bath, and drying in air under restricted conditions. These novel wearable supercapacitors based on non-woven macrofiber mats are demonstrated to have excellent tailorability, electrochemical stability, and damage reliability.

Surface molecular-imprinting engineering of novel cellulose nanofibril/conjugated polymer film sensors towards highly selective recognition and responsiveness of nitroaromatic vapors.

We designed and synthesized two conjugated polymer-grafted cellulose nanofibril film sensors via surface molecular-imprinting. These two surface TNT- or DNT-imprinted film sensors exhibit highly selective recognition and fast response towards target explosive vapor.

Cellulose nanofibers/reduced graphene oxide flexible transparent conductive paper.

The cellulose nanofibers (CNFs) paper exhibit high visible light transmittance, high mechanical strength, and excellent flexibility. Therefore, CNFs paper may be an excellent substrate material for flexible transparent electronic devices. In this paper, we endeavor to prepare CNFs-based flexible transparent conductive paper by layer-by-layer (LbL) assembly using divalent copper ions (Cu(2+)) as the crosslinking agent.

Paper-based transparent flexible thin film supercapacitors.

Paper-based transparent flexible thin film supercapacitors were fabricated using CNF-[RGO]n hybrid paper as an electrode material and charge collector. Owing to the self-anti-stacking of distorted RGO nanosheets and internal electrolyte nanoscale-reservoirs, the device exhibited good electrochemical performance (about 1.73 mF cm(-2)), and a transmittance of about 56% (at 550 nm).