| Project/Area Number |
20K15147
|
|---|
| Research Category |
Grant-in-Aid for Early-Career Scientists
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Basic Section 28050:Nano/micro-systems-related
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2020-04-01 – 2024-03-31
|
| Project Status |
Completed (Fiscal Year 2023)
|
| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
|
|---|
| Keywords | Nanochannels / Energy harvesting / IoT sensing systems / Thermoelectric generator / Energy conversion / Thermoelectric materials / Nanofluidic transport / Anodized aluminum oxide / Ionic nanofluidic / MACE / TEGs |
|---|
| Outline of Research at the Start |
Several energy harvesting systems have been developed to collect energy from ambient energy sources, such as sunlight, vibration and heat.These systems pose advantages and disadvantages. Herein, a novel concept of a combination between fluidic transport in nanochannels and thermal charging of metal oxide material is proposed which expect to generate a higher output voltage as well as the electrical power.
|
| Outline of Final Research Achievements |
This work demonstrates thermal-to-electric energy conversion based on ionic nanofluidic transport in nanochannels inducted by a temperature gradient. Two types of highly periodic and high aspect ratio nanochannels have been fabricated in a silicon (Si) substrate and in an aluminium oxide (Al2O3) membrane. Silicon nanochannels with diameter of 100 nm and height of 300 μm have been produced by metal-assisted chemical etching process (MACE), while nanochannels with the dimensions of the 10 nm and 3 μm respectively, were fabricated in a Al2O3 membrane by the anodic aluminum oxidation (AAO) process. Moreover, a novel approach of thermally nanofluidic energy harvesting was proposed and conducted. This investigation may open new opportunities for the future thermoelectric generators based on ionic transport in nanochannels.
|
| Academic Significance and Societal Importance of the Research Achievements |
The harvested power in this work could be used as a green energy source to power wireless IoT sensing systems. Between 2020 and 2023, I published 15 peer-reviewed journal articles, 1 book chapter and result achievement has been presented at over 10 international conferences.
|
