Published on by China Scientist

Mr. Siqi Liu | Material Characterization | Best Researcher Award 

Siqi Liu is a PhD candidate at Queensland University of Technology specializing in thermoelectric materials, particularly based systems. With a background in chemistry and chemical engineering, his research integrates material synthesis, advanced characterization, and performance analysis to explore the effects of crystal defects on material properties. He has also worked on photocatalytic systems for methane conversion and has experience in both academic and industrial research settings.

Mr. Siqi Liu | Queensland University of Technology | China

Profile

ORCID

Education

  • Siqi Liu is currently pursuing a PhD in Materials Science and Engineering at the Queensland University of Technology in Brisbane, Australia, having commenced his doctoral studies. Prior to this, He completed a Master’s degree in Chemical Engineering at the University of Queensland. His foundational training in the sciences began with a Bachelor’s degree in Chemistry at Jiangsu University.

Experience

  • Siqi Liu has a diverse research and industrial background in materials science and chemical engineering. Currently, He is a PhD candidate and research associate at Queensland University of Technology, focusing on the synthesis and characterization of thermoelectric materials. He previously worked as a research assistant at the University of Queensland, where, he developed photocatalysts for methane conversion. Earlier, during his internship at Suzhou Highfine Biotech Co., Ltd., he gained hands-on experience in quality control and analytical techniques such as HPLC and GC, contributing to process improvements in product separation and analysis.

Awards and Recognition

  • Siqi Liu was awarded the UQ Summer Research Scholarship by the School of Chemical Engineering at the University of Queensland. The research award, supported his project titled “Photocatalyst for Oxidative Coupling of Methane Reaction.” As part of the project, he synthesized Strontium Titanate  using molten salt, solid-state, and hydrothermal reactions. He then loaded various noble metal nanoparticles onto the surface and evaluated the catalytic performance, with a focus on gold nanoparticles deposited via photo-deposition. His performance analysis was supported by XRD, UV-Vis spectroscopy, and gas chromatography.

Skills and Expertise

  • Siqi Liu has extensive hands-on experience with advanced experimental techniques including Spark Plasma Sintering, Physical Vapor Deposition, Seebeck Coefficient Measurement, Laser Flash Analysis, and Scanning Thermal Probe Micro-Imaging.  He is proficient in material characterization using XRD, SEM, TEM, and FIB. Additionally, he is skilled in quality and purity analysis techniques such as HPLC and GC. On the computational front, he is adept with MATLAB and LAMMPS for materials modeling and analysis.

Research Focus 

  • Siqi Liu’s research is centered on van der Waals layer-structured based materials, with particular interest in how crystal defects influence thermal, electrical, and mechanical properties. He integrates experimental synthesis and characterization with computational simulation to gain insights into the structure–property relationships in thermoelectric materials. His interdisciplinary approach is supported by a strong track record of peer-reviewed publications and international research presentations, including participation in the Asia Pacific Microscopy Congress scheduled.

Research Projects

  • Siqi Liu has been actively involved in several research projects across materials science and chemical engineering. His current doctoral research focuses on the development of based thermoelectric materials, investigating the impact of crystal defects on their thermal and electrical properties. During his master’s studies, he worked on photocatalytic materials, specifically developing and optimizing and systems for the oxidative coupling of methane. His research integrates experimental synthesis, advanced material characterization, and performance evaluation to design high-efficiency functional materials.

Publications

  • Copper ion diffusion by solid solution treatment advancing GeTe-based thermoelectrics
    Authors: Yongqi Chen, Meng Li, Xiaodong Wang, Wenyi Chen, Siqi Liu, Min Zhang, Wanyu Lyu, Nanhai Li, Han Gao, Weidi Liu et al.
    Journal: Nature Communications

  • Defect Engineering in van der Waals Layer‐Structured Bi2Te3‐Based Materials
    Authors: Si‐Qi Liu, Wei‐Di Liu, Wanyu Lyu, Han Gao, Dmitri V. Golberg, Zhi‐Gang Chen
    Journal: cMat

  • Indium‐Doping Advances High‐Performance Flexible Ag₂Se Thin Films
    Authors: Tianyi Cao, Xiao‐Lei Shi, Boxuan Hu, Siqi Liu, Wanyu Lyu, Meng Li, Sen Wang, Wenyi Chen, Wei‐Di Liu, Raza Moshwan et al.
    Journal: Advanced Science

  • Realizing High Performance in Flexible Mg₃Sb₂₋ₓBiₓ Thin‐Film Thermoelectrics
    Authors: Boxuan Hu, Xiao‐Lei Shi, Tianyi Cao, Min Zhang, Wenyi Chen, Siqi Liu, Meng Li, Weidi Liu, Zhi‐Gang Chen
    Journal: Advanced Science

  • Compromising Configurational Entropy Leading to Exceptional Thermoelectric Properties in SnTe‐Based Materials
    Authors: Raza Moshwan, Min Zhang, Meng Li, Siqi Liu, Nanhai Li, Tianyi Cao, Wei‐Di Liu, Xiao‐Lei Shi, Zhi‐Gang Chen
    Journal: Advanced Functional Materials

Conclusion

  • Siqi Liu’s strong foundation in materials synthesis, advanced characterization, and thermoelectric research, combined with his interdisciplinary experience and international academic exposure, positions his as a promising researcher in the field of functional materials. His dedication to solving real-world energy challenges through innovative material design reflects both technical excellence and a forward-looking research vision.

Siqi Liu | Material Characterization | Best Researcher Award

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