We are interested in a wide range of electrochemical aspects.
Electron transfer in bioelectrochemistry
We study the electron communication between a redox active enzyme and an electrode surface, via direct electron transfer (DET) or mediated electron transfer (MET). This forms the basis of various bioelectrochemical applications. Read the Enzymatic Bioelectrocatalysis special issue in 2021 which I served as a guest editor, also the recent review in Chem. Soc. Rev. 2023.
Biofuel cell
We are interested in enzymatic biofuel cell that uses enzymes as the catalysts for the conversion of chemical energy into electricity. It holds the promise for wearable and implantable medical devices. Read my review articles (Chem. Rev. 2019; eScience 2022).
Hybrid energy device
We have developed a type of unique hybrid energy device of enzymatic biofuel cell/supercapacitor, or "autonomous biosupercapacitor". Read our research articles (Biosens. Bioelectron. 2017; Biosens. Bioelectron. 2017; Chem. Commun. 2018; Biosens. Bioelectron. 2022).
Nanomaterials based bioelectrodes and surface chemistry
We have many years of experience of using dealloyed nanoporous gold (NPG) film for (bio-)electrochemical studies. A robust flexible NPG film is also developed. Read our reports (Electrochimica Acta 2014; Bioelectrochemistry 2016; ACS Appl. Mater. Interfaces 2018; J. Am. Chem. Soc. 2020; Electrochimica Acta 2021).
We also try to deal with the aggregation issue of the usage of reduced graphene oxides for the direct electron transfer of enzymes. Dual functional molecular spacers that also perform as the DET promoter have been adopted. Read our reports (Bioelectrochemistry 2020; Biosens. Bioelectron. 2020; Biosens. Bioelectron. 2022).
Electrochemical sensors
We are interested in health-related electrochemical (bio-)sensors, especially on enzymatic biosensors and wearable biosensors. Read our reports (Talanta 2013; Talanta 2014; Analyst 2014; ChemElectroChem 2019; Electrochem. Commun. 2021; Biosensors 2022; Electroanalysis 2022; Sens. Actuat. B: Chem. 2022; Biosensors and Bioelectronics 2024, 246, 115890).
Electrocatalysis
We work on several classic electrocatalysis reactions including hydrogen evolution reaction (HER), oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). We prefer to use porous or nanoporous catalysts due to the large specific area. Read our reports (Electrochimica Acta 2015; ChemElectroChem 2020; Chem. Commun. 2020; ACS Appl. Mater. Interfaces 2021; Electrochimica Acta 2021; J. Energy Chem. 2022; Current Opinion in Electrochemistry 2022; J. Energy Chem. 2023).
Microwave "cooked" nanomaterials
Microwave-assisted heating synthesis (MAHS) is a surfactant-free strategy which circumvents the hinderance induced by capping agents around the nanomaterials. It allows automation. Materials obtained possess great potentials in electrocatalysis, energy storage and conversion. Read our reports (Applied Surface Science 2020; Small 2021; Electrochimica Acta 2021; ACS Appl. Mater. Interfaces 2021).