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Aqueous rechargeable nickel–bismuth batteries have surfaced as a prospective energy storage and conversion system because of their merits of good safety, high power density, and low cost.

Hypochlorite plays a significant role in physiological processes, particularly regulation of lysosomal functions, and is involved in various diseases. Thus, it is crucial to develop highly sensitive and selective molecule tools to detect HClO in lysosomes. Herein, a novel 2H-benzo[h]chromene-pyridine derivative (1) was synthesized through condensation reaction, which exhibited a notable deep-red emission at 640 nm in pure water. This deep-red emission was specifically quenched by adding ClO−. The response of probe 1 toward ClO− was rapid (within 10 s), sensitive (detection limit of 0.012 μM), and effective over a wide range of pH (1.0–12.0). Due to the existence of morpholine as the lysosome-targeting unit, the probe was successfully utilized to monitor lysosomal ClO−. Moreover, the probe 1 was also applied to detecting ClO− in zebrafish.

TiO2nanotube arrays (TNAs) fabricated by anodization were quenched to obtain high-quality samples for the application of such electrodes in dye-sensitized solar cells (DSSC). The morphology, crystallization structure and photoelectrochemical properties of the samples were studied. The results showed that the quenched nanotubes assembled together into bundles but every single one maintained tubelike shape. In transient photocurrent response of electrode, photocurrent increased with the increasing of bias potential and photoelectrochemical properties of quenched electrodes were better than the unquenched, displaying obvious characterization of slow current response. When applied in DSSC, the sample quenched at-100 °C in ethanol displayed the best performance with Jsc= 4.186 mA/cm2, Voc= 0.781 V, FF = 0.48, η = 1.569 %.

In this paper, LiOH·H2O and Li2CO3, which were widely used in industry and (Mn0.533Co0.233Ni0.233) (OH)2prepared by ourselves selected as starting materials, series materials of lithium-rich layered material Li [Li0.2Mn0.44Ni0.18Co0.18]O2were obtained by a molten salt method. Their structures and properties of the materials were investigated by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and constant current charge/discharge methods. The effects of different LiOH and Li2CO3molar ratios on the Li [Li0.2Mn0.44Ni0.18Co0.18]O2structures and properties were characterized. The results of the experiments indicate that The structures of the material such as crystal structure, the specific area, particle size distribution, tap densities were controlled by adjusting the proportion of the two lithium sources. Forthermore , when the molar ratio of LiOH and Li2CO3was 3:7, the maximum discharge capacity (214.77 mAhg-1) of the cathode was obtained.

The ordered mesoporous boron-containing carbon films are deposited on 304 stainless steel (304 SS) as bipolar plate material for proton exchange membrane fuel cells (PEFMCs) by spin-coating method. As shown by XRD, N2 adsorption–desorption and TEM, the composite films exhibit ordered mesoporous structures. The SEM and Raman results show that the carbon film is dense, continuous, and amorphous. The corrosion resistance, hydrophobicity and electrical conductivity, of the carbon-coated steel are investigated and compared to carbon-coated 304 SS. The ordered mesoporous boron-containing carbon film has high chemical inertness, thereby significantly enhancing the corrosion resistance of the coated 304 SS. Furthermore, the ordered mesoporous boron-containing carbon film is more hydrophobic and conductive than mesoporous carbon film. Therefore, the ordered mesoporous boron-containing carbon film-coated 304 stainless steel is a promising candidate for bipolar plate materials in PEMFCs.

Spherical 0.3LiMn2O3•0.7Li(Ni1/3Co1/3Mn1/3)O2 cathode was synthesized by co-precipitation method followed by calcining at various temperatures (700-950 oC). The structures of the samples were investigated by XRD, SEM, BET and electrochemical method. The results showed that the cathode prepared at 700 oC had the highest discharge capacity of 220.8 mAhg-1 and a satisfactory cycling performance in this study. After 25 cycles, its discharge capacity was still retained as high as 199.6 mAhg-1, which is benefited from the special sphercial microsturcture.

In this work, a new desulfurization process of high sulfur coal was designed and examined. The novel process involved pyrolysis of high sulfur coal at low temperature and then a dry magnetic separation. For testing the cleaning coal process, a Chinese high sulfur coal, Baisu coal was pyrolyzed in a fixed bed reactor from 400 to 700°C for 30min, and then separated by a dry magnetic separator. The results showed that under optimum conditions, a remarkable reduction of sulfur content in coal was achieved, and more importantly, almost all pyrite sulfur in coal was removed.

Three kinds of activated carbons were prepared from Taixi anthracite by NaOH activation. As-obtained activated carbons were adopted as electrode materials to construct asymmetric and symmetric supercapacitors. The electrochemical properties of as-constructed supercapacitors in aqueous electrolyte (3.0M KOH) were investigated. Results show that the asymmetric supercapacitor assembled with activated carbon of a higher specific surface area (SBET) as the positive electrode exhibits better ion diffusion behavior and higher cell gravimetric specific capacitance (Cg). This is different from the case in non-aqueous system, mainly because pseudo-capacitance rather than double-layer capacitance has a more important effect on Cg in the aqueous electrolyte. Namely, the wettability and pseudo-capacitance of activated carbons decrease with increasing mass ratio of NaOH to anthracite, which is more prominent for activated carbons used as negative electrode materials.

Activated carbons (ACs) were prepared from lignite by microwave heating with KOH as activation agent, the effects of the weight ratio of KOH to coal and microwave heating time on the pore structure of ACs were investigated by N2 adsorption. The electrochemical characteristics of electrochemical capacitors (ECs) with ACs as electrodes in 3mol/L KOH electrolyte were evaluated by galvanostatic charge/discharge cycling, cyclic voltammetry and electrochemical impedance spectroscopy. The results show that the BET specific surface area and total pore volume of ACs (denoted as AC-R3) can reach 2097m2/g and 1.19cm3/g respectively when the weight ratio of KOH to coal is 3:1 and the microwave heating time is 10 min. The ECs with AC-R3 as electrodes presents a high specific capacitance of 335F/g at a low current density of 50mA/g and still remains 288F/g even at a high current density of 5A/g, it has excellent cycling stability and low leakage current, and the residual specific capacitance is as high as 93.6% after 1000 cycles under the current density of 2.5A/g. The results have demonstrated that the microwave heating with KOH activation is an efficient approach to prepare ACs with high performance for ECs. Keywords: Activated Carbons; Microwave Heating; Electrochemical Capacitors; Electrochemical Characteristics

Activated carbons (ACs) were prepared from lignite by microwave (MW) and electrical furnace (EF) heating with KOH as activation agent. In order to compare pore structures and electrochemical performances of ACs prepared by both heating methods, the ACs were characterized by N2 adsorption at 77K, X-ray diffraction (XRD) and scanning electron microscope (SEM). The electrochemical performances of Electrochemical capacitors (ECs) with ACs as electrodes in 3mol/L KOH electrolyte were evaluated by constant current charge-discharge, cyclic voltammetry and electrochemical impedance spectroscopy. The results show that the pore structures of ACs prepared by MW and EF heating significantly enhance when the weight ratio of KOH to coal increases from 2 to 4. The BET specific surface area, total pore volume, the ratio of mesopore and average pore diameter of ACs prepared by MW heating (denoted as AC-MW4) reaches 2094m2/g, 1.193cm3/g, 53.6%, 2.28nm when the weight ratio of KOH to coal is 4, and ACs prepared by EF heating (denoted as AC-EF4) reaches 2580m2/g, 1.683cm3/g, 67.3%, 2.61nm. The ECs with AC-MW4 and AC-EF4 as electrodes present a high specific capacitance of 348F/g and 377F/g at a current density of 50mA/g, and still remain 325F/g and 350F/g after 500 cycles, respectively. Although the specific surface area, total pore volume and specific capacitance of ACs prepared by MW heating are slightly lower than EF heating, taking into account the heating time in the activation process, ACs prepared by EF heating needs approximate 140min, while MW heating only needs 10min, which have demonstrated that microwave heating technology is a promising and efficient technique to prepare ACs.

The application status and existing problems of liquid wallpaper paint screen printing in wall decoration were analyzed, and through the analysis original production, screen plate-making, the effects of printing process on the quality of liquid wallpaper paint printing on the wall were discussed. Experiments find that when screen mesh was in the range of 150 to 300 mesh per inch, scumming can be effectively avoided, the thickness of the film can be guaranteed, and can making printing stereoscopic; Limiting the exposure time from 45 to 65 seconds can get high quality screen plate. To take manual scraping with the blade angle of about 45 degrees, can guarantee the best printing quality and film thickness etc.

Oxygen-rich activated carbons (OAC) were prepared from bituminous coal through a quick KOH activation. OAC exhibited a moderately large surface area of 1950 m2/g, a relative wide pore size distribution, good conductivity and very high oxygen content (up to 12 wt.%). Compared with high surface area activated carbons prepared by the conventional KOH activation, OAC have superior capacitive behavior, power output and high energy density in electrochemical double layer capacitors (EDLC). OAC presented a high specific capacitance of 370 F/g in 3 M KOH electrolyte at a low current density of 50 mA/g and still remained 270 F/g even at a high current density of 20 A/g. Keywords: Activated carbon, Electrochemical double layer capacitors, Oxygen-rich, High power output, High energy density

Anthracite was activated by NaOH to prepare high-performance activated carbons as electrodes for electric double-layer capacitors. The porous structure and electrochemical characteristics of the carbons were investigated by nitrogen sorption and electrochemical methods. The effect of pore structure on the electrochemical performance of the carbons in a 1 mol/L (C 2 H 5 ) 4 NBF 4 /propylene carbonate (PC) electrolyte was investigated. The as-prepared activated carbons exhibit large surface areas (943-2479 m 2 /g) and high-specific capacitances (57–167 F/g). The specific capacitance depends not only on the surface area, but also on the pore size distribution (PSD) of the carbon. Pores with a size of 2–3 nm are crucial for the ions to penetrate inside them for the (C 2 H 5 ) 4 NBF 4 /PC electrolyte. Specific capacitance is higher and impedance is lower for the sample with a wider PSD due to the fact that electrolyte ions could easily enter the pores.