A5085040689- CO2 Reduction Techniques and Catalysts
- Electrocatalysts for Energy Conversion
- Graphene and Nanomaterials Applications
- Graphene research and applications
- Advanced Photocatalysis Techniques
- Ionic liquids properties and applications
- Advanced Sensor and Energy Harvesting Materials
- Laser-Ablation Synthesis of Nanoparticles
- Advanced battery technologies research
- Covalent Organic Framework Applications
- Gas Sensing Nanomaterials and Sensors
- Ammonia Synthesis and Nitrogen Reduction
- Nanoplatforms for cancer theranostics
- Copper-based nanomaterials and applications
- Carbon dioxide utilization in catalysis
- ZnO doping and properties
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Molecular Junctions and Nanostructures
- Mercury impact and mitigation studies
- Advancements in Battery Materials
- Diamond and Carbon-based Materials Research
- Electrochemical Analysis and Applications
- Laser Material Processing Techniques
- Electrochemical sensors and biosensors
City University of Hong Kong
2019-2025
Hong Kong Polytechnic University
2023-2025
Affiliated Hospital of Youjiang Medical University for Nationalities
2024
City University of Hong Kong, Shenzhen Research Institute
2023
Wuhan University
2021
Kowloon Hospital
2021
Huazhong University of Science and Technology
2014-2017
Xi'an Jiaotong University
2017
Molecular complexes with inexpensive transition-metal centers have drawn extensive attention, as they show a high selectivity in the electrochemical conversion of CO2 to CO. In this work, we propose new strategy covalently graft cobalt porphyrin onto surface carbon nanotube by substitution reaction at metal center. Material characterization and studies reveal that molecules are well dispersed loading 10 wt. %. As result, turnover frequency for CO formation is improved factor three compared...
Wearing face masks has been widely recommended to contain respiratory virus diseases, yet the improper use of poses a threat jeopardizing protection effect. We here identified bacteria viability on common and found that majority (90%) remain alive after 8 h. Using laser-induced graphene (LIG), inhibition rate improves ∼81%. Combined with photothermal effect, 99.998% bacterial killing efficiency could be attained within 10 min. For aerosolized bacteria, LIG also showed superior antibacterial...
Abstract Support-induced strain engineering is useful for modulating the properties of two-dimensional materials. However, controlling planar molecules technically challenging due to their sub-2 nm lateral size. Additionally, effect on molecular remains poorly understood. Here we show that carbon nanotubes (CNTs) are ideal substrates inducing optimum through curvature. In a tandem-flow electrolyser with monodispersed cobalt phthalocyanine (CoPc) single-walled CNTs (CoPc/SWCNTs) CO 2...
Effective electronic induction and a stable interface collectively contribute to industrially relevant CO<sub>2</sub> reduction performance in flow cell.
Ammonia is an indispensable commodity in the agricultural and pharmaceutical industries. Direct nitrate-to-ammonia electroreduction a decentralized route yet challenged by competing side reactions. Most catalysts are metal-based, metal-free with high conversion activity rarely reported. Herein, it shown that amorphous graphene synthesized laser induction comprising strained disordered pentagons, hexagons, heptagons can electrocatalyze eight-electron reduction of NO3- to NH3 Faradaic...
Tactile sensations are mainly transmitted to each other by physical touch. Wireless touch perception could be a revolution for us interact with the world. Here, we report wireless self-sensing and haptic-reproducing electronic skin (e-skin) realize noncontact communications. A flexible actuator was developed provide an integrated function in both tactile sensing haptic feedback. When this e-skin dynamically pressed, generated induced voltage as information. Via communication, another receive...
Developing metal-free electrocatalysts for direct nitrate-to-ammonia reduction is promising to remediate wastewater yet challenged by the poor ammonia selectivity. Amorphization has become an emerging strategy afford conventional materials with exotic physical, chemical, and electronic properties. Transient laser heating of polymers produces graphene unusual polycrystalline lattice, control amorphicity difficult due extreme conditions fast kinetics lasing process. Here, we report synthesis...
Abstract The advancement of laser-induced graphene (LIG) technology has streamlined the fabrications flexible devices. However, ultrafast kinetics triggered by laser irradiation generates intrinsic amorphous characteristics, leading to high resistivity and compromised performance in electronic Healing defects specific patterns is technologically challenging conventional methods. Herein, we report rapid rectification LIG’s topological flash Joule heating milliseconds (referred as F-LIG),...
Advances in solar steam generation have made a promise mitigating the water scarcity problem. However, their practical use could be curtailed by vaporized pollutants and longevity limited biofouling salt-fouling that are often overlooked. Here, flake of wood is reported to engineered into miniaturized treatment device laser engraving process demonstrates advantages over common systems. The structured mimic centralized plants, which contains superhydrophilic graphene bottom layer for...
The prevalence of COVID-19 has caused global dysfunction in terms public health, sustainability, and socio-economy. While vaccination shows potential containing the spread, development surfaces that effectively reduces virus transmission infectivity is also imperative, especially amid early stage pandemic. However, most virucidal are operated under harsh conditions, making them impractical or potentially unsafe for long-term use. Here, it reported laser-induced graphene (LIG) without any...
Recent advances in laser-induced graphene (LIG) for environmental applications are comprehensively reviewed. Challenges and opportunities solving issues using LIG discussed.
The incorporation of charged functional groups is effective to modulate the activity molecular complexes for CO2 reduction reaction (CO2 RR), yet long-term heterogeneous electrolysis often hampered by catalyst leaching. Herein, an electrocatalyst atomically thin, cobalt-porphyrin-based, ionic-covalent organic nanosheets (CoTAP-iCONs) synthesized via a post-synthetic modification strategy high-performance -to-CO conversion. cationic quaternary ammonium not only enable formation monolayer due...
Abstract Electrochemical CO 2 reduction reaction (CO RR) to produce value‐added products has received tremendous research attention in recent years. With efforts across the globe, remarkable advancement been achieved, including improvement of selectivity for products, realization efficient beyond two electrons, and delivery industrially relevant current densities. In this review, we introduce development nanomaterials RR, zero‐dimensional graphene quantum dots, two‐dimensional materials such...
The development of high-performance miniaturized and flexible airflow sensors is essential to meet the need emerging applications. Graphene-based are hampered by sluggish response recovery speed low sensitivity. Here we employ laser-induced graphene (LIG) with poststructural biomimicry for fabricating high-performance, sensors, including cotton-like porous LIG, caterpillar fluff-like vertical LIG fiber, Lepidoptera scale-like suspended fiber (SLIGF) structures. structural engineering changes...
Metalloporphyrins and metallophthalocyanines emerge as popular building blocks to develop covalent organic nanosheets (CONs) for CO
Abstract Bipolar membranes (BPMs) have emerged as a promising solution for mitigating CO 2 losses, salt precipitation and high maintenance costs associated with the commonly used anion‐exchange membrane electrode assembly reduction reaction (CO RR). However, industrial implementation of BPM‐based zero‐gap electrolyzer is hampered by poor RR performance, largely attributed to local acidic environment. Here, we report backbone engineering strategy improve performance molecular catalysts in...
Transient power sources with excellent biocompatibility and bioresorablility have attracted significant attention. Here, we report high-performance, transient glucose enzymatic biofuel cells (TEBFCs) based on the laser-induced graphene (LIG)/gold nanoparticles (Au NPs) composite electrodes. Such LIG electrodes can be easily fabricated from polyimide (PI) an infrared CO2 laser exhibit a low impedance (16 Ω). The resulted TEBFC yields high open circuit potential (OCP) of 0.77 V maximum density...
Abstract Deficiencies in understanding the local environment of active sites and limited synthetic skills challenge delivery industrially‐relevant current densities with low overpotentials high selectivity for CO 2 reduction. Here, a transient laser induction metal salts can stimulate extreme conditions rapid kinetics to produce defect‐rich indium nanoparticles (L‐In) is reported. Atomic‐resolution microscopy X‐ray absorption disclose highly defective undercoordinated L‐In. In flow cell,...
Here we summarize the recent developments of catalysts and electrolyzers for CO 2 reduction reaction, which have improved product selectivity enabled delivery industrial-scale current densities.
The electrochemical CO2 reduction reaction (CO2RR) has emerged as a promising approach for sustainable carbon cycling and valuable chemical production. Various methods strategies have been explored to boost CO2RR performance. One of the most includes construction stable ionic interfaces on metallic or molecular catalysts using organic inorganic cations, which demonstrated significant improvement in catalytic interface is instrumental adjusting adsorption behavior, influencing reactive...