MENGLI ZHANG

Last Updated :2024/07/05

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Assistant Professor
E-mail
zmlhiroshima-u.ac.jp

Basic Information

Educational Backgrounds

  • Hiroshima University, Graduate School of Advanced Science and Engineering, Mechanical Engineering Program, Japan, 2020/04, 2023/03
  • Hiroshima University, Graduate school of Engineering, Department of Mechanical and Science Engineering, Japan, 2018/04, 2020/03

Academic Degrees

  • Hiroshima University
  • Hiroshima University

Educational Activity

Course in Charge

  1. 2024, Undergraduate Education, Second Semester, Experiments in Mechanical Engineering II
  2. 2024, Undergraduate Education, 1Term, Thermodynamics I
  3. 2024, Undergraduate Education, 4Term, Thermodynamics II
  4. 2024, Undergraduate Education, 1Term, Heat Transfer II
  5. 2024, Undergraduate Education, Year, Graduation Thesis
  6. 2024, Graduate Education (Master's Program) , 1Term, Special Exercises on Mechanical Engineering A
  7. 2024, Graduate Education (Master's Program) , 2Term, Special Exercises on Mechanical Engineering A
  8. 2024, Graduate Education (Master's Program) , 3Term, Special Exercises on Mechanical Engineering B
  9. 2024, Graduate Education (Master's Program) , 4Term, Special Exercises on Mechanical Engineering B
  10. 2024, Graduate Education (Master's Program) , Academic Year, Special Study on Mechanical Engineering
  11. 2024, Graduate Education (Master's Program) , 3Term, Advanced Thermal Engineering

Research Activities

Academic Papers

  1. Difference in Gas-Sensing behavior of multi-walled carbon Nanotube-Paper-Based gas sensor to polar and non-Polar organic solvents, Chemical Physics Letters, 798(139596), 202207
  2. Light and flexible gas sensors made of free-standing carbon nanotube paper, Chemical Physics Letters, 747(137367), 202005

Invited Lecture, Oral Presentation, Poster Presentation

  1. Effect of the amount of metal catalyst in supercritical water gasification reactor on carbon gasification rate, Mizuki Kodama, Mohammed Ahmed Mohammed ALI, Takashi Noguchi, Mengli Zhang, Shuhei Inoue, Yukihiko Matsumura, SCEJ 54th Autumn Meeting (Fukuoka),11th-13st September, 2023., 2023/09/13, Without Invitation, Japanese, The Society of Chemical Engineers, Japan., Fukuoka University, Fukuoka city, Fukuoka,814-0180, JAPAN, Supercritical water gasification (SCWG) is a promising technology for efficiently converting biomass into useful gases. In this process, catalysts play a crucial role in accelerating the reaction and improving gas yields. To enhance the efficiency and cost-effectiveness of SCWG, researchers have turned to carbon nanotubes (CNTs) and other carbon-based materials as catalyst supports. From our previous study [1], a catalyst consisting of 0.5 wt% Ru supported on CNTs demonstrated excellent performance, achieving complete gasification under supercritical water conditions (25 MPa) and at a temperature of 600 °C. However, the high cost of Ru necessitates the use of a smaller amount of catalyst to achieve gasification. In this study, the effect of catalyst amount on supercritical water gasification of glucose was studied experimentally. A flow reactor was used and ruthenium catalyst supported on carbon nanotube was placed in it. After setting the temperature and pressure at the desired value, the glucose solution was fed to the reactor. The effluent was cooled down, depressurized, and collected. Gas products and liquid products were analyzed with gas chromatograph and total organic carbon analyzer, respectively. Carbon gasification efficiency was calculated, and compared to the model prediction.
  2. Supercritical water gasification catalysts enhanced with carbon nanotubes and carbon-based materials, Mizuki Kodama, Mohammed Ahmed Mohammed ALI, Takashi Noguchi, Mengli Zhang, Shuhei Inoue, Yukihiko Matsumura, The 7th International Symposium on fuels and Energy, 29th-31st July, 2023, 2023/07/04, Without Invitation, English, Advanced Core for Energetics, Hiroshima University (HU-ACE), Kurara hall, Higashihiroshima city, Hiroshima,739-0015, JAPAN, Supercritical water gasification (SCWG) is a promising technology for efficiently converting biomass into useful gases. In this process, catalysts play a crucial role in accelerating the reaction and improving gas yields. To enhance the efficiency and cost-effectiveness of SCWG, researchers have turned to carbon nanotubes (CNTs) and other carbon-based materials as catalyst supports. From our previous study [1], a catalyst consisting of 0.5 wt% Ru supported on CNTs demonstrated excellent performance, achieving complete gasification under supercritical water conditions (25 MPa) and at a temperature of 600 °C. However, the high cost of Ru necessitates the use of a smaller amount of catalyst to achieve gasification. In this study, the effect of catalyst amount on supercritical water gasification of glucose was studied experimentally. A flow reactor was used and ruthenium catalyst supported on carbon nanotube was placed in it. After setting the temperature and pressure at the desired value, the glucose solution was fed to the reactor. The effluent was cooled down, depressurized, and collected. Gas products and liquid products were analyzed with gas chromatograph and total organic carbon analyzer, respectively. Carbon gasification efficiency was calculated, and compared to the model prediction.
  3. Investigating the impact of concentration on the thickness of carbon nanotube paper, Hiroto Fujita, Mengli Zhang, Shuhei Inoue, The 7th International Symposium on Fuels and Energy, 2023/07/04, Without Invitation, English, Conference Organizer: Advanced Core for Energetics Hiroshima University(HU-ACE), Higashi Hiroshima Arts & Culture Hall Kurara, My research is to characterize CNT paper. CNTs are known for their excellent mechanical strength, light weight, high current density resistance, and high thermal conductivity, and CNT paper made from them is attracting attention as a next generation nanodevice and one of the materials at the core of nanotechnology. So I think that the characterization of CNT paper and the improvement of its properties are important to make better mechanical materials in the future. However, because CNTs and other fibrous carbon nanostructures are microscopic structures with nanometer-sized diameters, they are not necessarily easy to handle or process on their own. If the excellent properties of CNTs can be transformed into a paper form without killing them, the uses of CNTs will be expanded, and it will be possible to give CNTs their excellent properties to various objects. So the uniqueness of my research is that CNTs have been processed into a variety of products in the past, but I am applying CNTs by processing them into paper form and improving their properties when processed into paper form. For this purpose, my research aims to create CNTs under various conditions, analyze their properties, and improve their characteristics!
  4. THE FABRICATION OF CARBON NANOTUBES (CNTS) PAPER CATALYST FOR BIOMASS CONVERSION IN SUPERCRITICAL WATER, MENGLI ZHANG, M. A. M. Ali1, S. Inoue2, T. Noguchi3, and Y. Matsumura1, 7th International Workshop on Heat-Mass Transfer Advances for Energy Conservation and Pollution Control, 2023/08/06, Without Invitation, English, 2-14,Aibacyo,Tokushimacity,Tokushima,770-0835,JAPAN, Biomass is recognized as a renewable energy source [1], and the utilization of supercritical water gasification (SCWG) has gained significant attention for efficiently decomposing wet biomass without the need for prior drying [2]. Enhancing the gas yield in this process necessitates the incorporation of catalysts. Extensive research [3,4,5] has demonstrated the potential of carbon nanotubes (CNTs) as catalyst supports, owing to their exceptional electron conductivity, favorable chemical inertness, and relatively high oxidation stability. Our research group has previously established the high stability of a 0.5 wt% ruthenium catalyst supported on CNTs under supercritical water conditions (25 MPa) at a temperature of 600°C [6]. However, investigations regarding the utilization of a flexible catalyst support have been scarce. Therefore, the present study aims to introduce a fabrication method for flexible carbon nanotube (CNT) paper, which serves as a catalyst support, and subsequently evaluate its catalytic
  5. Comparisons of adsorption behavior and adsorption energy on multi-walled carbon nanotube-based gas sensor towards polar and non-polar molecules, Mengli ZHANG1, Shuhei INOUE2*, Yukihiko MATSUMURA1, The 60th National Heat Transfer Symposium, Without Invitation, English, The Heat Transfer Society of Japan, Fukuoka International Covension Center, Carbon nanotube (CNT)-based gas sensors have gained significant attention in the field of sensor technology due to their exceptional properties, including high surface-to-volume ratio, hollow structure, and flexibility, as well as their potential for being biodegradable, and foldable properties. In a previous study, we investigated the sensitivity of polar and non-polar molecules in CNT-based sensors and found that polar molecules exhibited adsorption behavior that fit well with the Langmuir adsorption model, while non-polar molecules demonstrated adsorption behavior satisfied well with the VI adsorption model. To further explore the underlying mechanisms behind this differential adsorption behavior, we conducted a comparative analysis of the adsorption behavior in this study and calculated the adsorption energy using the Gaussian 16 software. Our results revealed that for non-polar molecules, the lowest total energy was 9.87 fJ in a sandwich structure with a distance of 60 pm between two non-polar molecules and a distance of 43.56 pm between two layers of graphene. For polar molecules, the lowest total energy was 9.00 fJ in a parallel structure with a distance of 220 pm between two polar molecules and a distance of 284.6 pm between two layers of graphene. These findings indicate that non-polar molecules are adsorbed on the surface of graphene in a sandwich structure, with the second layer of molecules located on top of one another, while polar molecules exhibit one-layer adsorption in a parallel structure.