Size-Controlled Boron-Based Bifunctional Photocathodes for High-Efficiency Photo-Assisted Li-O Batteries.

Photo-assisted Li-O batteries are introduced as a promising strategy for reducing severe overpotential by directly employing photocathodes. Herein, a series of size-controlled single-element boron photocatalysts are prepared by the meticulous liquid phase thinning methods by combining probe and water bath sonication, and their bifunctional photocathodes in the photo-assisted Li-O batteries are systematically investigated. The boron-based Li-O batteries have shown incremental round-trip efficiencies as the sized reduction of boron under illumination.

All-solid-state TiCT neutral symmetric fiber supercapacitors with high energy density and wide temperature range.

All-solid-state TiCT neutral symmetric fiber supercapacitors (PVA EGHG TiCT FSCs) with high energy density and wide temperature range are constructed by using polyvinyl alcohol (PVA)-ethylene glycol hydrogel (EGHG)-sodium perchlorate (NaClO) as electrolyte and separator, and TiCT fiber as electrodes. TiCT fiber is prepared using 130 mg mL TiCT nanosheet ink as an assembly unit in a coagulation bath of isopropyl alcohol (IPA) and distilled water with 5 wt% CaCl by a wet spinning method. The prepared TiCT fiber exhibits a specific capacity of 385 F cm and a capacitance retention of 94 % after 10,000 cycles in 1 M NaClO electrolyte.

Highly sensitive soft optical fiber tactile sensor.

A soft highly sensitive tactile sensor based on an in-fiber interferometer embedded in polydimethylsiloxane (PDMS) structure is studied. Theoretical simulation obtains that the high order sensing modes and PDMS can improve the sensitivity. Experiments show that different order sensing modes, derived by fast Fourier transform (FFT) and inverse FFT methods, present different sensing performance.

Few-layer Mg-deficient borophene nanosheets: I oxidation and ultrasonic delamination from MgB.

By using I as an oxidant and CHCN as a reaction medium, few-layer Mg-deficient borophene nanosheets (FBN) with a stoichiometric ratio of MgB are prepared by oxidizing MgB in a mixture of CHCN and HCl for 14 days under nitrogen protection and followed by ultrasonic delaminating in CHCN for 2 h. The prepared FBN possess a two-dimensional flake morphology, and they show a clear interference fringe with a -spacing of 0.251 nm corresponding to the (208) plane of rhombohedral boron.

Ultrahigh-energy sodium ion capacitors enabled by the enhanced intercalation pseudocapacitance of self-standing TiNbO/CNF anodes.

In order to increase the capacity and improve the sluggish Na-reaction kinetics of anodes as sodium ion capacitors (SICs), a TiNbO/CNF self-standing film electrode comprised of TiNbO nanosheets and carbon nanofibers has been fabricated electrospinning HTiNbO nanosheets with PAN and subsequent carbonization treatment. The as-prepared TiNbO/CNF film electrode possesses fast Na-ion intercalation kinetics and high conductivity during Na-ion storage, and it displays a high reversible capacity of 324 mA h g at 0.1 A g.

Few-layer and large flake size borophene: preparation with solvothermal-assisted liquid phase exfoliation.

The preparation of two-dimensional boron (B) nanosheets, especially for borophene, is still a challenge because of its unique structure and complex B-B bonds in bulk boron. In the present work, a novel preparation technology for borophene with only a few layers and large flake sizes is developed by a solvothermal-assisted liquid phase exfoliation process, consisting of ball milling-thinning, solvothermal swelling, and probe ultrasonic delamination. The exfoliation effect of the bulk B precursors is related to the surface tension and Hildebrand parameter of the selected solvents such as acetone, ,-dimethyl formamide (DMF), acetonitrile, ethanol, and -methyl pyrrolidone (NMP), and a relative small surface tension when using solvents is favorable for the exfoliation of bulk B.

Electrospun NbO nanorods/microporous multichannel carbon nanofiber film anode for Na ion capacitors with good performance.

For the disadvantages of both the slow reaction kinetics and the poor conductivity for NbO electrode materials as sodium-ion capacitors (SICs), NbO NRs/NMMCNF film electrode with good flexibility and high electrochemical property has been fabricated by electrospinning PAN/PMMA/HNbO·HO homogeneous viscous suspension and followed by an annealing treatment, in which the precursor HNbO·HO nanorods are obtained by grinding HNbO·HO nanowires, and NbO nanorods are uniformly embedded in nitrogen doped microporous multichannel carbon nanofiber. Benefiting from the multichannel network structure, NbO NRs/NMMCNF film electrode delivers the fast kinetics of Na-storage and the superior Na-ion storage performance, it delivers outstanding rate capability (101 mAh g at 4 A g) and ultralong lifespan (91% capacity retention after 10,000 cycles at 2 A g). A NbO NRs/NMMCNF//AC SIC based on the NbO NRs@NMMCNF fiber film anode and the AC cathode is assembled.

[Epidemic characteristics of imported falciparum malaria in Huai'an City].

Objective: To understand the situation and epidemic characteristics of imported falciparum malaria in Huai'an City from 2010 to 2016, so as to provide the evidence for formulating the prevention and control strategies of imported falciparum malaria in the city.

Methods: The epidemic data of imported falciparum malaria in Huai'an City from 2010 to 2016 were analyzed by using the descriptive epidemiological method.

Results: A total of 308 malaria cases were reported in Huai'an City from 2010 to 2016 with the average annual incidence of 0.

[Effect of prevention and control system for malaria eliminating in Huai'an City].

Objective: To investigate the execution and effect of the prevention and control system for malaria eliminating in Huai'an City from 2010 to 2015, so as to provide the evidence for formulating and adjusting the strategy and measures for malaria elimination.

Methods: The data of network malaria reports, blood tests of feverish patients, epidemiology investigation forms of case study of malaria patients in the report system, and the investigation and disposition forms of epidemic foci were collected and analyzed statistically.

Results: From 2010 to 2015, there were 267 malaria cases in total in Huai'an City.

[Analysis of malaria situation and discussion of control strategies in Huai'an City, 2014].

Objective: To understand the malaria epidemic situation in Huai'an City in 2014, so as to provide the evidence for formulating and adjusting effective strategies and measures to eliminate malaria.

Methods: The reported malaria cases from the Internet Reporting System and the epidemiological data of malaria of Huai'an City in 2014 were collected and analyzed statistically.

Results: A total of 56 malaria cases were reported in Huai'an City in 2014 with the incidence of 0.

[Cost-benefit analysis of netting cultivation to block the spread of Oncomelania snails in lake regions].

Objective: To evaluate the cost-benefit of netting cultivation to block the spread of Oncomelania snails in lake regions.

Methods: The cost-benefit of netting cultivation was investigated by interviewing in the field, the cost of Oncomelania snail survey and control was investigated by retrospective review in Gaoyou Lake regions of Jinhu County from 2009 to 2011. The benefit of netting cultivation to block the spread of snails in lake regions was calculated by the benefit-cost ratio (BCR), and then the cost-benefit of them was calculated.