A5075732634- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- Graphene research and applications
- Membrane-based Ion Separation Techniques
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Membrane Separation Technologies
- Analytical Chemistry and Sensors
- Advanced Battery Technologies Research
- Thermal Expansion and Ionic Conductivity
- Advanced Sensor and Energy Harvesting Materials
- Advanced Memory and Neural Computing
- Electrochemical Analysis and Applications
- Environmental Impact and Sustainability
- 2D Materials and Applications
- Nanomaterials for catalytic reactions
- Asymmetric Hydrogenation and Catalysis
- Membrane Separation and Gas Transport
- Carbon Dioxide Capture Technologies
University of British Columbia
2024
Anhui University of Technology
2023-2024
University of Waterloo
2014-2023
Wenzhou University
2020
Institute of New Materials
2020
National Institute for Nanotechnology
2014-2019
Regional Municipality of Waterloo
2017-2019
Centre for Sustainable Energy
2014-2018
China University of Mining and Technology
2016
Donghua University
2011-2014
Zn-based electrochemistry has recently been considered as the most promising family to challenge dominant status of Li-based battery technologies. Besides its more abundant reserves, moderate reactivity and aqueous electrolyte compatibility Zn result in higher safety lower cost. More importantly, involved two-electron redox Zn2+/Zn couples can provide theoretical capacity energy density. On basis electrochemistry, a series technologies, including Zn-ion, Zn–air, flow batteries well their...
Abstract A highly selective and durable electrocatalyst for carbon dioxide (CO 2 ) conversion to formate is developed, consisting of tin (Sn) nanosheets decorated with bismuth (Bi) nanoparticles. Owing the formation active sites through favorable orbital interactions at Sn‐Bi interface, Bi‐Sn bimetallic catalyst converts CO a remarkably high Faradaic efficiency (96%) production rate (0.74 mmol h −1 cm −2 −1.1 V versus reversible hydrogen electrode. Additionally, maintains its initial over an...
Abstract Hydrogen generation from electrochemical water‐splitting is an attractive technology for clean and efficient energy conversion storage, but it requires robust non‐noble electrocatalysts hydrogen oxygen evolution reactions (HER OER). Nonprecious transition metal–organic frameworks (MOFs) are one of the most promising precursors developing advanced functional catalysts with high porosity structural rigidity. Herein, a new metal‐based hollow multivoid nanocuboidal catalyst synthesized...
Abstract Stable solid electrolyte interface (SEI) is highly sought after for lithium metal batteries (LMB) owing to its efficient consumption suppression and Li dendrite growth inhibition. However, current design strategies can hardly endow a multifunctional SEI formation due the non-uniform, low flexible film limited capability alter nucleation/growth orientation, which results in unconstrained short cycling stability. Herein, we present novel strategy employ additives containing catechol...
Abstract Rechargeable zinc–air batteries (ZnABs) are attracting great interest due to their high theoretical specific energy, safety, and economic viability. However, performance large‐scale practical applications largely limited by poor durability overpotential on the air‐cathode slow kinetics of oxygen reduction evolution reactions (ORR/OER). Therefore, it is highly desired exploit an ideal bifunctional catalyst endow obtained ZnABs with excellent ORR/OER catalytic performances. Herein, a...
Rich, porous graphene frameworks decorated with uniformly dispersed active sites are prepared by using polyaniline as a precursor and introducing phenanthroline pore-forming agent. The unprecedented fuel-cell performance of this electrocatalyst is linked to the vast distribution pore sizes, which maximizes active-sites accessibility, facilitates mass-transport properties, improves carbon corrosion resistance.
Abstract The highly oxidative operating conditions of rechargeable zinc–air batteries causes significant carbon‐support corrosion bifunctional oxygen electrocatalysts. Here, a new strategy for the catalyst support design focusing on vacancy (OV)‐rich, low‐bandgap semiconductor is proposed. OVs promote electrical conductivity oxide support, and at same time offer strong metal–support interaction (SMSI), which enables catalysts to have small metal size, high catalytic activity, stability....
A hybrid alkaline zinc–iodine redox flow battery has been designed with an unprecedented energy density record to date for all-aqueous battery.
A solid-state hydroxide-conducting electrolyte with laminated structure based on functionalized graphene oxide and nanocellulose is demonstrated a flexible, rechargeable zinc–air battery. Superior ionic conductivity, high water content, low anisotropic swelling degree, excellent structural stability approve its promising application in advanced portable electrochemical energy conversion, storage systems. As service to our authors readers, this journal provides supporting information supplied...
Abstract Transition metal atoms with corresponding nitrogen coordination are widely proposed as catalytic centers for the oxygen reduction reaction (ORR) in metal–nitrogen–carbon (M–N–C) catalysts. Here, an effective strategy that can tailor Fe–N–C catalysts to simultaneously enrich number of active sites while boosting their intrinsic activity and utilization is reported. This achieved by edge engineering FeN 4 via a simple ammonium chloride salt‐assisted approach, where high fraction...
Abstract Graphene quantum dots (GQDs) have aroused great interest in the scientific community recent years due to their unique physicochemical properties and potential applications different fields. To date, much research has been conducted on ingenious design rational construction of GQDs‐based nanomaterials used as electrode materials and/or electrocatalysts. Despite these efforts, efficient synthesis application is still early stages development timely updates progress new concepts,...
Nitrogen-functionalized graphene materials have been demonstrated as promising electrocatalyst for the oxygen reduction reaction (ORR), owning to their respectable activity and excellent stability in alkaline electrolyte. However, they exhibit unacceptable catalytic acid medium. Here, a hierarchically porous Co–N functionalized aerogel is prepared an efficient catalyst ORR In preparation process, polyaniline (PANI) introduced pore-forming agent aid self-assembly of species into networks,...
A free‐standing sulfonic acid functionalized graphene oxide (fSGO)‐based electrolyte film is prepared and used in an electrochemical gas sensor, alcohol fuel cell sensor (AFCS), for the detection of alcohol. The fSGO film‐based AFCS detects ethanol vapor with excellent response, linearity, sensitivity, since it possesses a high proton conductivity (58 mS cm −1 at 55 °C). An limit level as low 25 ppm achieved selectivity over acetone demonstrated. These results do not only show promising...
A CO 2 in water nanoparticle stabilized Pickering emulsion is used to template micrometer sized hollow porous nitrogen doped carbon particles for high rate performance lithium sulfur battery. For the first time, nanoparticles serve dual role of an stabilizer and a pore shell, directly utilizing situ generated bubbles as core. The minimalistic nature this method does not require expensive surfactants or additional core templates. Upon polymerization melamine formaldehyde onto , robust...
Nanocomposites play a key role in performance improvements of hydroxide conductors employed wide range alkaline–electrochemical systems such as fuel cells and metal–air batteries. Graphene oxide (GO) nanosheets are considered to be outstanding nanofillers for polymeric nanocomposites on account their excellent physicochemical strength electrochemical properties. In this work, fast conductor was developed the basis chemically modified GO nanocomposite membrane. The high surface area...