Low-Cost Embedded Controller for Complex Control Systems

Because of limited resource of embedded platforms, the computational complexity of advanced control algorithms raises significant challenges for the use of embedded systems in complex control field. A Scilab/Scicos based embedded controller is developed on which various control software can be easily modeled, simulated, implemented, and evaluated to meet the ever-expanding requirements of industrial control applications. Built on the Cirrus Logic EP9315 ARM systems-on-chip board, this embedded controller is possible to develop complex embedded control systems that employ advanced control strategies in a rapid and cost-efficient fashion. Due to the free and open source nature of the software packages used, the cost of the embedded controller is minimized.

Tailored amorphous titanium oxide and carbon composites for enhanced pseudocapacitive sodium storage

As an effective and competitive supplement to the commercialized lithium ion batteries(LIBs),sodium ion batteries(SIBs)have been receiving increasing attention in recent years due to lower cost,richer content,and broader distribution of sodium[1–7].Sodium has similar electrochemical properties to lithium,and thus the concepts for the preparation of electrode materials for SIBs can be borrowed from LIBs[8,9].

Continuous synthesis of few-layer MoS_(2) with highly electrocatalytic hydrogen evolution

As one of the most promising alternative fuels,hydrogen is expected with high hopes.The electrolysis of water is regarded as the cleanest and most efficient method of hydrogen production.Molybdenum disulfide(MoS_(2))is deemed as one of the most promising alternatives HER catalysts owing to its high catalytic activity and low cost.Its continuous production and efficient preparation become the key problems in future industrial production.In this work,we first developed a continuous micro-reaction approach with high heat and mass transfer rates to synthesize few-layer MoS_(2)nanoplates with abundant active sites.The defective MoS_(2)ultrathin nanoplates exhibit excellent HER performance with an overpotential of 260 m V at a current density of 10 m A cm^(-2),small Tafel slope(53.6 m V dec^(-1))and prominent durability,which are comparable to most reported MoS_(2)based catalysts.Considering the existence of continuous devices,it's suitable for the synthesis of MoS_(2)as highperformance electrocatalysts for the industrial water electrolysis.The novel preparation method may open up a new way to synthesize all two-dimension materials toward HER.

Amorphous hollow carbon film as a flexible host for liquid Na-K alloy anode

Compared with solid alkali metal anodes(Li, Na, K), liquid metal anodes(LMAs) could enable high-energy batteries due to their unique advantages, such as self-healing property and no dendrites. Among LMAs,liquid Na-K alloy anode has become a hotspot due to its high theoretical capacity, low redox potential and formation at room temperature(RT). However, it is challenging to utilize liquid Na-K alloy directly and independently as an electrode;and the high surface tension makes it more difficult to immerse into porous current collectors at RT. Herein, an amorphous hollow carbon film(AHCF) consisting of hollow spheres with significant surface defects has been designed to quickly infiltrate Na-K liquid alloy into the hollow carbon film at RT, forming a composite electrode(Na-K@AHCF). The symmetric cell with Na-K@AHCF could exhibit a cycle lifespan up to 400 h at 0.1 m A/cm^(2) and achieve stable stripping/deposition even at 5 mA/cm^(2). When matching with cathode material of sulfurized polyacrylonitrile(SPAN), the obtained K-S full cell exhibits good cycle stability and rate performance.