Achieving High Rate and Long Cycle Performance of NaFePOF Cathode Through Co-Modification of Ti Doping and Carbon Coating.

Layered NaFePOF (NFPF) cathode material has received widespread attention due to its green nontoxicity, abundant raw materials, and low cost. However, its poor inherent electronic conductivity and sluggish sodium ion transportation seriously impede its capacity delivery and cycling stability. In this work, NFPF by Ti doping and conformal carbon layer coating via solid-state reaction is modified.

A Web of Science-based scientometric analysis about mammalian target of rapamycin signaling pathway in kidney disease from 1986 to 2020.

Background: The mammalian target of rapamycin (mTOR) signaling pathway is vital for the regulation of cell metabolism, growth and proliferation in the kidney. This study aims to show current research focuses and predict future trends about mTOR pathway in kidney disease by the methods of scientometric analysis.

Methods: We referred to publications from the Web of Science Core Collection (WoSCC) Database.

N/P-Dual-Doped Carbon-Coated NaV(PO)OF Microspheres as a High-Performance Cathode Material for Sodium-Ion Batteries.

NaV(PO)OF (NVPOF) is attracting great interest due to its large capacity and high working voltage. However, poor electronic conductivity limits the electrochemical performance of NVPOF. Herein, we fabricate N/P-dual-doped carbon-coated NVPOF microspheres (labeled as NVPOF@P/N/C) via a hydrothermal process followed by heat treatment.

Polydopamine-Derived Nitrogen-Doped Carbon-Covered NaV(PO)F Cathode Material for High-Performance Na-Ion Batteries.

Nitrogen-doped carbon-covered NaV(PO)F (NVPF/C-PDPA) composites have been successfully prepared by self-polymerization of dopamine on the NVPF surface and subsequent sintering. The X-ray diffraction results show that the NVPF/C-PDPA has good crystallinity and introducing dopamine does not affect the lattice structure of NVPF. The high-resolution transmission electron microscopy, high-angle annular dark-field images, and energy dispersive X-ray spectroscopy analyses reveal that the NVPF/C-PDPA particles are covered by a complete and uniform covering layer, which is effective at preventing corrosion of NVPF in the electrolyte to greatly increase cycling stability.

Anthracite-Derived Dual-Phase Carbon-Coated LiV(PO) as High-Performance Cathode Material for Lithium Ion Batteries.

In this study, low cost anthracite-derived dual-phase carbon-coated LiV(PO) composites have been successfully prepared via a traditional solid-phase method. XRD results show that the as-prepared samples have high crystallinity and anthracite introduction has no influence on the LVP crystal structure. The LVP/C particles are uniformly covered with a dual-phase carbon layer composed of amorphous carbon and graphitic carbon.

Protective effect of regular physical activity on major depressive episodes in patients with early stages of chronic kidney disease.

Previous studies have demonstrated an association between physical activity (PA) and depression in diverse population. The purpose of our study is to examine if PA within the recommended level over time is associated with major depressive episode (MDE) in patients with early stages of chronic kidney disease (CKD) in Mainland China. Patients with stages 2-5 CKD not receiving dialysis were enrolled from a nephrology outpatient clinic between May 2014 and February 2016.