Roya Maboudian (Advisor)

Research Advised by Professor Roya Maboudian

Maboudian Group:  List of Projects | List of Researchers

Zhou Li

Alumni
Chemical and Biomolecular Engineering
Professor Roya Maboudian (Advisor)
Ph.D. 2022 (Visiting Scholar)

Zhou Li is a PhD candidate in University of Science and Technology of China. He received his bachelor’s degree from Central South University in 2014 and joined Professor Roya Maboudian’s lab at the University of California, Berkeley in 2019 as a visiting graduate student. His current research interest is synthesis of functional nanostructured metal oxides and related composites for gas sensing.

BPN963: Ordered Porous RGO/SnO2 Thin Films for Ultrasensitive Humidity Detection

Zhou Li
Isaac Zakaria
2022

SnO2-based chemiresistive gas sensors can effectively detect combustible, explosive and toxic gases, and have been widely used in safety monitoring and process control in residential buildings, in various industrial settings and in mines. However, sensitivity and selectivity are still needed to be further improved for most current SnO2-based gas sensors. In addition, their high power consumption due to their high working temperature (200-400°C) limits their further development. Graphene, due to its unique characteristics (such as excellent electrical conductivity, large surface...

Synthesis and Gas Sensing Properties of NiO/ZnO Heterostructured Nanowires

Sikai Zhao
Yanbai Shen
Yong Xia
Aifei Pan
Zhou Li
Carlo Carraro
Roya Maboudian
2021

In this study, we report on the synthesis of the NiO/ZnO heterostructured nanowires by a facile two-step liquid phase route and their gas sensing characteristics employing Au interdigitated electrodes integrated on a miniature ceramic heater. Microstructural characterizations indicate that flocculent NiO particles are uniformly assembled on the outer surfaces of the single-crystalline ZnO nanowires, with diameters around 50 nm and lengths ranging from 500 nm to several μm. The gas sensing investigation indicates that the sensors based on NiO/ZnO heterostructured nanowires exhibit high...

In-Situ Synthesized N-Doped ZnO for Enhanced CO2 Sensing: Experiments and DFT Calculations

Yong Xia
Aifei Pan
Ya-Qiong Su
Sikai Zhao
Zhou Li
Adrian K. Davey
Libo Zhao
Carlo Carraro
Roya Maboudian
2022

Chemiresistive CO2 sensing is attractive due to low cost and ease of chip-level integration. Our previous studies (Yong Xia, 2021) showed the well-developed ZnO material fabricated by in-situ annealing exhibited good CO2 sensing performance. Here, we have expanded on those studies, including CO2 cyclic tests under both dry air and N2 background whereby a much higher response to CO2 in N2 background was observed. Detailed density functional theory calculations were conducted to understand the behavior. The results indicated nitrogen doping is mainly responsible for the observed response. In...

A New Chemresistive NO2 Sensing Material: Hafnium Diboride

Sikai Zhao
Yong Xia
Steven DelaCruz
Aifei Pan
Zhou Li
Yanbai Shen
Marcus A. Worsley
Carlo Carraro
Roya Maboudian
2022

While metal oxides and metal sulfides have been extensively studied for gas sensing applications, there are no extensive reports on gas sensing properties of metal diborides. Here, for the first time, we have investigated the conductometric gas sensing behavior of HfB2 nanoparticles. The HfB2 nanoparticles is synthesized via a sol-gel method and characterized using X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The gas sensor is fabricated by drop casting the HfB2 nanoparticles on interdigitated Ag/Pd...

Stuart McElhany

Graduate Student Researcher
Chemical and Biomolecular Engineering
Professor Roya Maboudian (Advisor)
Ph.D. 2026 (Anticipated)

David Gardner

Chemical and Biomolecular Engineering
Professor Roya Maboudian (Advisor)
Ph.D. 2021

David joined BSAC and Prof. Maboudian's group as a PhD student in January 2017. His research is focused on metal-organic frameworks for sensing applications. David has received several teaching awards, including the Teaching Effectiveness Award for showing how thermodynamics can be used to make business decisions (read here).

BSAC's Best: Spring 2015 Winners Announced

March 13, 2015

BSAC would like to thank the 160 researchers who presented their work in poster or plenary sessions at the Spring 2015 BSAC Research Review on March 11-13.

90 attending industrial members from 35 member organizations voted for the best presentations and posters, resulting in Best Paper and Best Poster awards (certificate and cash).

 Yumeng Liu
Best Paper Yumeng Liu | ...