Li Xie

• Xi'an University of Technology,China

Solvent engineering has been widely employed in the preparation of high-quality perovskite films for emerging halide perovskite solar cells (PSCs). However, the heavy use of toxic solvents (such as N-methyl-2-pyrrolidone (NMP), N,N-dimethylformamide (DMF), etc.) has caused critical concerns for health and the environment. Herein, a greener solvent...

The integration of carbon nanotubes with proteins to form novel hybrid functional assemblies holds great potential application in medical, nanotechnology and materials science. It is still a challenge to verify the interactions between carbon nanotubes (CNTs) and proteins experimentally, including the difficulty of controlling the composition of CN...

Halide perovskite solar cells (PSCs) have attracted much attention in the next generation of photovoltaic devices due to their low material costs, simple preparation process, and excellent power conversion efficiency (PCE). However, the poor photostability severely limits their commercial application. In this review, the degradation mechanism of PS...

The assembly of colloidal particles to crystal structure on micrometer scale is attractive due to the unique and complex structure with stable physical and chemical properties, and even good anti-reflectivity. In this work, the pyramidal Al2O3 film was prepared via the designed process combining the sol-gel method and hydrothermal reaction. We empl...

Modification is mostly used to adjust and increase the performance of polymers by employing organic or inorganic fillers in composites. It is significant to investigate the functions of different fillers in polymer matrix. In this work, we prepared a series of composites by using polyurethane/acrylic dispersions as polymer matrix and nanofillers (c...

Crystalline oxide film coated pure titanium has been fabricated by anodizing in citric acid (C6H8O7) solution containing reduced graphene oxide (RGO) electrolyte. The voltages ranging from 10 to 90 V were used during the anodization process. The results demonstrate that the growth rate and thickness of barrier layer decrease with the increase of ap...

Ti3C2Tx MXene has been explored as an efficient electromagnetic interference (EMI) shielding material because of its high electrical conductivity, large specific surface area, rich surface defects, and abundant functional groups. Herein, core-shell Fe3O4@PANI composites were prepared, followed by the preparation of a flexible and lightweight Ti3C2T...

The rapid development and widespread use of electronic devices have produced abundant electromagnetic waves, which affects the operation of other electronic equipment and even results in hazardous effects to human health. Therefore, lightweight, high-performance electromagnetic interference (EMI) shielding and microwave absorption (MA) materials ar...

Hydrothermal liquefaction of bread crusts in subcritical water were performed in a micro-batch reactor. The influences of temperature (300 – 360 °C) and residence time (10-30 min) on bio-oil yield, boiling point distribution and functional groups in bio-oil were investigated. The results showed that bio-oil yield increased with increasing temperatu...

High efficiency and low heat input are the pursuit of modern welding. In this paper, an innovative high frequency electric cooperated arc welding (HFAW) was developed. The process and joint characteristics of the HFAW were compared with that of traditional arc welding (TAW). In the HFAW, a part of welding heat is generated all over the surface of w...

MIG-TIG double-sided arc welding-brazing (DSAWB) was introduced to join 5052 aluminum alloy and Q235 mild steel of 3 mm thickness without groove. Variations of weld appearance, interfacial intermetallic compounds (IMCs), and mechanical properties with the increase of TIG current were studied under same MIG heat input. The comparison of DSAWB and si...

Eight volatile organic compounds (VOCs) in melon seeds printing and packaging materials have been analyzed by a headspace gas chromatography and mass spectrometry method. The results of external standard method show that PET and aluminum foil as raw materials of melon seeds plastic bags contain less VOCs, but PE contains much more VOCs. There are m...

A headspace gas chromatography/mass spectrometric (HS/GC-MS) method was used to analyze seven volatile organic compounds (VOCs) including isopropyl alcohol, ethyl acetate, benzene, butyl acetate, ethylbenzene, m/p-Xylene, o-Xylene in printing and packaging materials of instant noodles. The important experiment parameters related to the HS/GC-MS met...

Montmorillonite (MMT) was first modified with dodecyl dimethylbenzyl ammonium (DDA) salt and octadecyl trimethyl ammonium (OTA) salt. Then low density polyethylene (LDPE)/organic montmorillonite (OMMT) nanocomposites were prepared by twin-screw extruder and hot-press. Transmission electron microscopy (TEM) results showed that OMMT layers were homog...

Eight volatile organic compounds (VOCs) in the four disposable food packages at refrigeration temperature, room temperature and heating temperature have been analyzed by a headspace gas chromatography and mass spectrometry method. The results of external standard method show that the amount of VOCs in the four disposable packages at different tempe...

Interply and intraply hybrid composites based on Bisphenol A Dicyanate ester (BADCy), high strength carbon fibers T300, and high modulus carbon fibers M40 were prepared by monofilament dip-winding and press molding technique. The tensile, flexural, interlaminar shear properties and SEM analysis of the hybrid composites with different fiber content...