Horikoshi Satoshi, Mitani Tomohiko, Serpone Nick
Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
Laboratory of Applied Radio Engineering for Humanosphere, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
Molecules. 2025 Jan 28;30(3):598. doi: 10.3390/molecules30030598.
This study investigated the impact of a 10 kHz amplitude-modulation (AM) wave from a semiconductor microwave generator on the heating of ultrapure water and electrolyte aqueous solutions containing NaCl. It also examined the effects of AM waves on the yields of 4-methylbiphenyl (4-MBP) in the heterogeneous Suzuki-Miyaura coupling reaction, which was conducted in the presence of palladium nanoparticles supported on activated carbon (Pd/AC), as well as their influence on the growth rate during silver nanoparticle synthesis. Applying AM waves, typically used in telecommunications, enhanced heating efficiencies and improved product yields in both the chemical reaction and nanoparticle growth. Irradiating with microwaves under AM conditions allowed it to reduce power output while still achieving target yields and growth rates, even at the same temperatures without AM. This indicates the potential for highly efficient and energy-saving microwave processes in chemical reactions and material synthesis.
本研究调查了半导体微波发生器产生的10 kHz调幅（AM）波对超纯水和含氯化钠的电解质水溶液加热的影响。还研究了AM波对在活性炭负载钯纳米颗粒（Pd/AC）存在下进行的非均相铃木-宫浦偶联反应中4-甲基联苯（4-MBP）产率的影响，以及它们对银纳米颗粒合成过程中生长速率的影响。应用通常用于电信的AM波，提高了化学反应和纳米颗粒生长中的加热效率并改善了产物产率。在AM条件下用微波辐照能够在相同温度下即使没有AM时仍能降低功率输出，同时仍能达到目标产率和生长速率。这表明在化学反应和材料合成中高效节能微波工艺具有潜力。
