A5008687639- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Electrochemical Analysis and Applications
- Advanced Photocatalysis Techniques
- Electrochemical sensors and biosensors
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Conducting polymers and applications
- Copper-based nanomaterials and applications
- MXene and MAX Phase Materials
- Ammonia Synthesis and Nitrogen Reduction
- Nanowire Synthesis and Applications
- Chemical Synthesis and Reactions
- Extraction and Separation Processes
- Advanced Battery Materials and Technologies
- Advanced Chemical Sensor Technologies
- Catalysis and Hydrodesulfurization Studies
- Hydrogen Storage and Materials
- Advanced biosensing and bioanalysis techniques
- Microbial Inactivation Methods
- Semiconductor materials and devices
- Chalcogenide Semiconductor Thin Films
- Membrane-based Ion Separation Techniques
- Anodic Oxide Films and Nanostructures
University of Minho
2020-2024
International Iberian Nanotechnology Laboratory
2018-2024
Sun Yat-sen University
2021
Clinical Academic Center of Braga
2018
A notable trend in OER activity on transition metal phosphide pre-catalysts is reported. Remarkably, the tri-metallic FeCoNiP exhibit exceptional apparent and intrinsic activities, outperforming many non-precious catalysts reported previously.
Synergistic coupling of ruthenium with cobalt phosphide can significantly boost the hydrogen evolution performance hybrid catalysts in a wide pH range.
Transition metal phosphides (TMPs) have recently emerged as an important type of electrode material for use in supercapacitors thanks to their intrinsically outstanding specific capacity and high electrical conductivity. Herein, we report the synthesis bimetallic CoxNi1–xP ultrafine nanocrystals supported on carbon nanofibers (CoxNi1–xP/CNF) explore positive materials asymmetric supercapacitors. We find that Co:Ni ratio has a significant impact capacitance/capacity CoxNi1–xP/CNF,...
Proton exchange membrane water electrolysis (PEM-WE) has emerged as a promising technology for hydrogen production and shows substantial advantages over conventional alkaline electrolysis. To enable efficient PEM-WE in acidic media, iridium (Ir)- or ruthenium (Ru)-based catalysts are indispensable to drive the thermodynamically kinetically demanding oxygen evolution reaction (OER). However, developing Ir/Ru with high efficiency long-term durability still remains formidable challenge. Herein,...
Renewable energy-powered water electrolysis and photocatalytic splitting are two promising approaches to green hydrogen production. Electrocatalysts photocatalysts essential components determining the performance of electrolyzers reactors, respectively. Currently, there is a pressing need develop efficient stable electrocatalysts for large-scale deployment these devices reach carbon neutrality. Herein, we report synthesis single-atom Ir Ru anchored on mesoporous graphitic nitride (Ir-g-CN...
Achieving an efficient and stable oxygen evolution reaction (OER) in acidic or neutral medium is of paramount importance for hydrogen production via proton exchange membrane water electrolysis (PEM-WE). Supported iridium-based nanoparticles (NPs) are the state-of-the-art OER catalysts PEM-WE, but nonhomogeneous dispersion these NPs on support together with their nonuniform sizes usually leads to catalyst migration agglomeration under strongly corrosive oxidative conditions, eventually...
Abstract Direct seawater electrolysis is proposed as a potential low‐cost approach to green hydrogen production, taking advantage of the vastly available and large‐scale offshore renewable energy being deployed. However, developing efficient, earth‐abundant electrocatalysts that can survive under harsh corrosive conditions for long time still significant technical challenge. Herein, fabrication self‐supported nickel‐iron phosphosulfide (NiFeSP) nanotube array electrode through two‐step...
Diatomic catalysts, particularly those with heteronuclear active sites, have recently attracted considerable attention for their advantages over single-atom catalysts in reactions involving multielectron transfers. Herein, we report bimetallic iridium–iron diatomic (IrFe–N–C) derived from metal–organic frameworks a facile wet chemical synthesis followed by postpyrolysis. We use various advanced characterization techniques to comprehensively confirm the atomic dispersion of Ir and Fe on...
Hollow CoP octahedral nanoparticles have been prepared, and they show exceptionally high intrinsic activity for both the oxygen evolution methanol oxidation reactions.
Abstract Water splitting has been proposed to be a promising approach producing clean hydrogen fuel. The two half‐reactions of water splitting, that is, the evolution reaction (HER) and oxygen (OER), take place kinetically fast in solutions with completely different pH values. Enabling HER OER simultaneously occur under favorable conditions while using exclusively low‐cost, earth‐abundant electrocatalysts is highly desirable but remains challenge. Herein, we demonstrate bipolar membrane...
Alkaline water electrolysis is a cost-effective approach to hydrogen production, but it suffers from low operational current densities (typically ≤500 mA cm–2) and thereby production rate. Herein we report the fabrication of self-supported porous cobalt phosphide (Co–P) foam by electrochemical anodization commercially available foam, followed thermal oxidation subsequent phosphorization. The as-obtained Co–P compared other control samples prepared under different conditions, shows...
Renewable energy powered electrochemical water splitting has been recognized as a sustainable and environmentally-friendly way to produce green hydrogen, which is an important vector decarbonize the transport sector hard-to-abate industry, able contribute achieving global carbon neutrality. For large-scale deployment of electrolyzers, it essential develop efficient durable electrocatalysts—one key components determining performance, based on cheap earth-abundant materials. To this end,...
Electrochemical sensors have been recognized as crucial tools for monitoring comprehensive chemical information, especially in the detection of a significant class molecules known phenolic compounds. These compounds can be present water hazardous analytes and trace contaminants, well living organisms where they regulate their metabolism. The sensitive requires highly efficient cost-effective electrocatalysts to enable development high-performance sensors. Therefore, this review focuses on...
Bisphenol A (BPA) is a commonly utilized phenolic contaminant in several manufacturing processes, contributing to environmental pollution. Therefore, the detection of BPA holds significant importance for monitoring water quality. In this work, we report robust electrochemical method utilizing cobalt−nickel bimetal phosphide nanoparticles (CoNiP) supported on reduced graphene oxide (rGO). The CoNiP@rGO-modified glassy carbon electrode exhibits remarkable activity detection. mechanism...
The oxygen evolution reaction (OER) is a half-cell that of importance to many electrochemical processes, especially for and photoelectrochemical water splitting. Developing efficient, durable, low-cost OER electrocatalysts comprising Earth-abundant elements has been in the focus electrocatalysis research. Herein, we report cost-effective, scalable, template-free approach fabrication hollow iron phosphide–phosphate (FeP–FePxOy) composite nanotubes (NTs), which realized by hydrothermal growth...
Bifunctional atomically dispersed ruthenium electrocatalysts with a low metal loading (0.2 wt%) exhibit outstanding performance for bipolar membrane water electrolysis.
The influence of structural parameters highly-ordered silicon nanowire arrays on their solar-driven HER performance is systematically investigated.
Transition metal phosphides (TMPs) are emerging as high-performance and promising electrode materials for use in asymmetric supercapacitors (ASCs). Herein, we demonstrate that cobalt phosphide (CoP) nanocrystals supported on carbon nanofibers (CoP/CNF) can serve negative ASCs show outstanding specific capacitance 748 F g–1 at 2 A superior long-term cycle stability, outperforming conventional carbon-based nearly all TMP-based reported previously. binder-free mille-crêpe-like is fabricated by...
The design of advanced materials with catalytic activity for detection a target molecule is key to construct sensitive electrochemical sensor. Transition metal phosphides (TMPs) have recently attracted substantial interest and are widely investigated as electrode material in the field energy conversion/storage. TMPs also been exploited sensing showing promising results molecular detection. In this work, we report preparation composite consisting bimetallic cobalt−nickel phosphide (CoNiP)...