A5030087835- Mechanical and Optical Resonators
- Advanced MEMS and NEMS Technologies
- Zeolite Catalysis and Synthesis
- Catalytic Processes in Materials Science
- Geophysics and Sensor Technology
- Catalysis and Oxidation Reactions
- Photonic and Optical Devices
- Catalysts for Methane Reforming
- Advanced Fiber Optic Sensors
- Advanced Sensor Technologies Research
- Acoustic Wave Resonator Technologies
- Advanced Fiber Laser Technologies
- Electronic and Structural Properties of Oxides
- Ferroelectric and Piezoelectric Materials
Soochow University
2022-2024
Soochow University
2024
Huazhong University of Science and Technology
2020-2024
Propane dehydrogenation (PDH) reaction has emerged as one of the most promising propylene production routes due to its high selectivity for and good economic benefits. However, commercial PDH processes usually rely on expensive platinum-based poisonous chromium oxide based catalysts. The exploration cost-effective ecofriendly catalysts with excellent catalytic activity, selectivity, stability is great significance yet remains challenging. Here, we discovered a new active center, i.e., an...
Propane dehydrogenation (PDH) is one of the most promising on-purpose technologies to produce propylene. In this review, we present a comprehensive summary latest research progress on zeolite-supported metal catalysts for PDH reactions.
This paper introduces a fiber-optic microelectromechanical system (MEMS) seismic-grade accelerometer that is fabricated by bulk silicon processing using photoresist/silicon dioxide composite masking technology. The proposed sensor flexure whose displacement transduction employs light intensity detection method based on Fabry-Perot interference (FPI). FPI cavity formed between the end surface of cleaved optical fiber and gold-surfaced sidewall proof mass. MEMS one-step deep reactive ion...
This article presents a nano-g microopto-electromechanical system (MOEMS) accelerometer that uses the principle of Fabry–Pérot (F-P) interference in conjunction with micromechanical structure for transducing input acceleration. The device comprises movable silicon proof mass suspended by flexural beams and an F-P cavity integrated cleaved optical fiber. Furthermore, closed-loop force balance mechanism is exploited to enhance accelerometer's measurement range utilizing magnetic provided pair...
Most spaceborne scientific experiment applications require a microgravity environment. The current high-precision accelerometers used for the vibration isolation system generally have noise floor of sub-μg/√Hz, which cannot meet demand higher-level measurements. This article introduces micro-electromechanical (MEMS) acceleration sensor that has 2–5 ng/√Hz and an input range more than ±2 mg. Its three-component version, MEMS measurement module (MEMS-M3), is designed to measure accelerations...
Abstract Formic acid (FA) dehydrogenation and CO 2 hydrogenation to FA/formate represent promising methodologies for the efficient clean storage release of hydrogen, forming a ‐neutral energy cycle. Here, we report synthesis highly dispersed stable bimetallic Pd‐based nanoparticles, immobilized on self‐pillared silicalite‐1 (SP‐S‐1) zeolite nanosheets using an incipient wetness co‐impregnation technique. Owing accessible active sites, effective mass transfer, exceptional hydrophilicity,...
Formic acid (FA) dehydrogenation and CO
High-sensitivity micro-electromechanical systems (MEMS) accelerometers have been widely used in many applications. Although the optical MEMS advantage of insensitive to electromagnetic interferences, there are still difficulties integration and fabrication. Therefore, capacitive more commonly used. This paper introduces a high-sensitivity accelerometer based on silicon-on-insulator (SOI) double-side micromachining technology which can overcome both component low-frequency suspension system...
High-precision geophones play crucial roles in terrestrial applications such as oil and gas exploration well seismic monitoring. The development of optomechanical precision measurements provides a new design method for geophones, offering higher sensitivity smaller dimensions compared to traditional geophones. In this work, we introduce an microelectromechanical system (MEMS) geophone based on plano-concave Fabry‒Perot (F-P) microcavity, which has high 146 V/g. F‒P microcavity consists...
Miniaturized accelerometers are in high demand for consumer electronics, acoustic monitoring, and unmanned aerial vehicles. However, there is a tradeoff between accelerometer resolution size, which poses major challenge. In this study, we introduce an optomechanical microelectro mechanical system (MEMS) based on Fabry-Perot (F-P) microcavity. The F-P microcavity consists of fixed hemispherical mirror harmonic oscillator made monocrystalline silicon. Despite its small size (only 10 mm), the...