Integration of strategy, budgetary management and internal control system： A case of Sinochem Corporation

How budgetary management as a tool for planning and controlling of business operations is aligned with strategy and internal control system may not be problematic to American firms but is the most challengeable to large corporations in China. The case of Sinochem Corporation demonstrates the ways that budgetary management is linked with 3-year strategic planning at corporate level via yearly operating plans at business levels, and that budgets are integrated with internal control system into a device of task control to monitor whether business operations are on the track toward strategy. It is learned from the case that Chinese corporations have initiated different practices than American firms in solving the same issues.

Carbon dot-modified silicon nanoparticles for lithium-ion batteries

Silicon(Si)particles were functionalized using carbon dots(CDs)to enhance the interaction between the Si particles and the binders.First,CDs rich in polar groups were synthesized using a simple hydrothermal method.Then,CDs were loaded on the Si surface by impregnation to obtain the functionalized Si particles(Si/CDs).The phases and microstructures of the Si/CDs were observed using Fourier-transform infrared reflection,X-ray diffraction,scanning electron microscopy,and high-resolution transmission electron microscopy.Si/CDs were used as the active material of the anode for electrochemical performance experiments.The electrochemical performance of the Si/CD electrode was assessed using cyclic voltammetry,electrochemical impedance spectroscopy,and constant current charge and discharge experiment.The electrodes prepared with Si/CDs showed good mechanical structure stability and electrochemical performance.After 150 cycles at 0.2 C,the capacity retention rate of the Si/CD electrode was 64.0%,which is twice as much as that of pure Si electrode under the same test conditions.

Preparation of Hydrophilic UHMWPE Hollow Fiber Membranes by Chemically Bounding Silica Nanoparticles

In this work, ultra-high molecular weight polyethylene (UHMWPE) microfiltration hollow fiber membranes prepared via the thermally induced phase separation (TIPS) method were modified by chemically bounding hydrophilic silica (SiO2) nanoparticles onto the surface to improve anti-fouling performance. A range of testing techniques including attenuated total reflection Flourier transformed infrared spectroscopy(ATR-FTIR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), water contact angle, mechanical test,filtration and anti-fouling performance were carried out to discuss the influence of different modification conditions on the properties of the membranes. The prepared hollow fiber membranes display the significantly excellent performance when the vinyl trimethoxy silane (VTMS) concentration was 13%, the pH value of the hydrolyzate was 4 and the hydrolysis reaction time was 6 h. In particular, the hydrophilicity of modified membranes was improved effectively, resulting in the enhancement of membrane anti-fouling properties. The results of this work can be consulted for improving the anti-fouling performance of the UHMWPE microfiltration hollow fiber membrane applied in the field of water purification.

Multifunctional tubular carbon nanofibers/polyurethane electromagnetic wave absorber with room-temperature self-healing and recyclable performance

Incorporating self-healing and recyclable capabilities into microwave absorbing materials is expected to facilitate the life extension,cost reduction,and performance stability,thereby meeting the practical applications.In this research,a recycling and room-temperature self-healing electromagnetic wave(EMW)absorber is designed,in which linear polyurethane cross-linked by aromatic disulfide bonds is used as healable matrix,and tubular carbon nanofibers(TCNFs)are employed to attenuate microwave.The resultant composites with a TCNFs content of 7 wt.%harvest a minimum reflection loss(RLmin)of−39.0 dB and an effective absorption bandwidth(EAB)of 2.9 GHz at a matching thickness of 4.0 mm.Driven by the reversible dynamic bonds including hydrogen bonds and aromatic disulfide bonds,the high healing efficiency of 88.7%at 25°C and 93.2%at 60°C is presented.Impressively,even after three repairing cycles at room temperature,a healable efficiency of 86.4%is acquired,and RLmin can still reach−39.1 dB at the same thickness,together with an EAB of 3.0 GHz.Additionally,the results of solvent recycling experiment manifest that the recycled specimen achieves the almost similar mechanical and microwave dissipation properties as original one.These attractive characteristics make the designed self-healing and recyclable composites promising for next-generation EMW consumption devices.

Self-assembly of 3p-Block Metal-based Metal-Organic Frameworks from Structural Perspective

Metal-organic frameworks(MOFs) are a class of porous inorganic-organic hybrid materials, which are constructed from diverse inorganic building units and multi-functional organic ligands. Highly ordered pore structures and tailored functionalization have made MOF materials potential for applications in many fields. Among various MOF materials, 3p-block metal(Al, Ga, and In)-based MOFs exhibit higher chemical stability than divalent transition metal-based MOFs due to their higher valence. In this review, Al-MOFs and In-MOFs were mainly discussed from the perspective of categories of inorganic building blocks, coordination types, and numbers of organic ligands. This review will give intuitive guidance to the design and synthesis of novel 3p-block metal-based MOFs with potential applications.

A Fluorescent In (Ⅲ) Metal-Organic Framework for Explosives Detection

Anovel metal-organic framework{[In_(3)(TATAT)_(2)]·3CH_(3)NH_(3)·7NMF·8H_(2)O}[JLU-MOF101,H_(6)TATAT=5,5′,5″-(1,3,5-triazine-2,4,6-triyl)tris-(azanediyl)triisophthalate,NMF=N-methyl-formamide]with cor topology has been synthesized under solvothermal conditions.The framework of JLU-MOF101 is constructed by{In(COO)_(4)}-nodes and a hexacarboxylic organic ligand.JLU-MOF101 exhibits excellent fluorescence properties in N,N-dimethylformamide(DMF)solution,and its emission spectrum can be greatly overlapped with the ultraviolet absorption spectra of trinitrophenol(TNP)and 2,4-dinitrophenol(2,4-DNP).As a result,JLU-MOF101 exhibits excellent performance of fluorescence quenching for TNP and 2,4-DNP.In addition,we demonstrate the selective detection capability of JLU-MOF101 through a large number of anti-interference tests.