A5011704935- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Electrochemical Analysis and Applications
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- CO2 Reduction Techniques and Catalysts
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Molecular Junctions and Nanostructures
- Supercapacitor Materials and Fabrication
- Nanopore and Nanochannel Transport Studies
- Surface Modification and Superhydrophobicity
- Advanced Thermoelectric Materials and Devices
- Advanced Sensor and Energy Harvesting Materials
- Aerogels and thermal insulation
- Nanomaterials for catalytic reactions
- Hybrid Renewable Energy Systems
- Microbial Fuel Cells and Bioremediation
- Advanced Materials and Mechanics
- Magnetic properties of thin films
- Iron oxide chemistry and applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Nanocluster Synthesis and Applications
Hefei University of Technology
2021-2024
Hefei National Center for Physical Sciences at Nanoscale
2013-2023
University of Science and Technology of China
2014-2023
National Synchrotron Radiation Laboratory
2011-2022
Technical University of Denmark
2020-2022
Southern University of Science and Technology
2022
Sun Yat-sen University
2022
Catalytic Materials (United States)
2021
Xi'an University of Technology
2021
ORCID
2020
Abstract The electroreduction of water for sustainable hydrogen production is a critical component several developing clean-energy technologies, such as splitting and fuel cells. However, finding cheap efficient alternative catalyst to replace currently used platinum-based catalysts still prerequisite the commercialization these technologies. Here we report robust highly active evolution reaction that constructed by in situ growth molybdenum disulfide on surface cobalt diselenide. In acidic...
The design of efficient, cheap, and abundant oxygen evolution reaction (OER) catalysts is crucial to the development sustainable energy sources for powering fuel cells. We describe here a novel Mn(3)O(4)/CoSe(2) hybrid which could be promising candidate such electrocatalysts. Possibly due synergetic chemical coupling effects between Mn(3)O(4) CoSe(2), constructed displayed superior OER catalytic performance relative its parent CoSe(2)/DETA nanobelts. Notably, earth-abundant cobalt (Co)-based...
Selective and efficient catalytic conversion of carbon dioxide (CO2) into value-added fuels feedstocks provides an ideal avenue to high-density renewable energy storage. An impediment enabling deep CO2 reduction oxygenates hydrocarbons (e.g., C2+ compounds) is the difficulty coupling carbon-carbon bonds efficiently. Copper in +1 oxidation state has been thought be active for catalyzing formation, whereas it prone being reduced Cu0 at cathodic potentials. Here we report that catalysts with...
The slow kinetics of the oxygen evolution reaction (OER) greatly hinders large-scale production hydrogen fuel from water splitting. Although many OER electrocatalysts have been developed to negotiate this difficult reaction, substantial progresses in design cheap, robust, and efficient catalysts are still required considered a huge challenge. Here, we report composite material consisting CoSe2 nanobelts anchored on nitrogen-doped reduced graphene oxides (denoted as NG-CoSe2) highly...
The design of highly efficient non-noble-metal electrocatalysts for large-scale hydrogen production remains an ongoing challenge. We report here a Ni2P nanoarray catalyst grown on commercial Ni foam substrate, which demonstrates outstanding electrocatalytic activity and stability in basic electrolyte. high catalytic can be attributed to the favorable electron transfer, superior intrinsic activity, intimate connection between nanoarrays their substrate. Moreover, unique "superaerophobic"...
Abstract Transition metal dichalcogenide materials have been explored extensively as catalysts to negotiate the hydrogen evolution reaction, but they often run at a large excess thermodynamic cost. Although activating strategies, such defects and composition engineering, led remarkable activity gains, there remains requirement for better performance that aims real device applications. We report here phosphorus-doping-induced phase transition from cubic orthorhombic phases in CoSe 2 . It has...
Low-density compressible materials enable various applications but are often hindered by structure-derived fatigue failure, weak elasticity with slow recovery speed and large energy dissipation. Here we demonstrate a carbon material microstructure-derived super-elasticity high resistance achieved designing hierarchical lamellar architecture composed of thousands microscale arches that serve as elastic units. The obtained monolithic can rebound steel ball in spring-like fashion fast (∼580 mm...
Not noble but effective: A novel Ni/NiO/CoSe2 hybrid material has been synthesized as an efficient catalyst for the hydrogen evolution reaction (HER; see picture). This new a cathodic onset potential at −0.03 V, Tafel slope of 39 mV per decade, and represents currently best Pt-free electrocatalyst HER in acidic medium. As service to our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized online delivery, not...
The development of active, stable and low-cost electrocatalysts towards both the hydrogen evolution reaction (HER) oxygen (OER) for overall water splitting remains a big challenge. Herein, we report new porous carbon-supported Ni/Mo2C (Ni/Mo2C-PC) composite catalyst derived by thermal treatment nickel molybdate nanorods coated with polydopamine, which efficiently robustly catalyses HER OER striking kinetic metrics in alkaline electrolyte. affords low onset potentials -60 mV 270 OER, as well...
CeO2/CoSe2 nanobelt composite for electrochemical water oxidation: A new is developed as a highly effective oxidation electrocatalyst by growing CeO2 nanoparticle CoSe2 nanobelts in situ via simple polyol reduction route. The constructed hybrid catalyst shows extremely high oxgen evolution reaction (OER) activity, even beyond the state-of-the-art RuO2 alkaline media.
Abstract Transition‐metal phosphides have stimulated great interest as catalysts to drive the hydrogen evolution reaction (HER), but their use bifunctional catalytic electrodes that enable efficient neutral‐pH water splitting has rarely been achieved. Herein, we report synthesis of ternary Ni 0.1 Co 0.9 P porous nanosheets onto conductive carbon fiber paper can efficiently and robustly catalyze both HER oxidation in 1 m phosphate buffer (PBS; pH 7) electrolyte under ambient conditions. A...
We reveal a highly active and durable class of electrocatalysts with connected single-crystalline nanoparticles, forming an open architecture. The MOR activity could be recovered to the initial value or even better<italic>via</italic>simple potential cycling after durability test.
Resorcinol-formaldehyde (RF) and graphene oxide (GO) aerogels have found a variety of applications owing to their excellent properties remarkable flexibility. However, the macroscopic controllable synthesis composite gels is still great challenge. By using GO sheets as template skeletons metal ions (Co(2+), Ni(2+), or Ca(2+)) catalysts linkers, first low-temperature scalable strategy for new kind RF-GO gel with tunable densities mechanical was developed. The can tolerate strain high 80%...
Abstract A considerable challenge in the conversion of carbon dioxide into useful fuels comes from activation CO 2 to .− or other intermediates, which often requires precious‐metal catalysts, high overpotentials, and/or electrolyte additives (e.g., ionic liquids). We report a microwave heating strategy for synthesizing transition‐metal chalcogenide nanostructure that efficiently catalyzes electroreduction monoxide (CO). found cadmium sulfide (CdS) nanoneedle arrays exhibit an unprecedented...
Cobalt-based nanomaterials have been intensively explored as promising noble-metal-free oxygen evolution reaction (OER) electrocatalysts. Herein, we report phase-selective syntheses of novel hierarchical CoTe2 and CoTe nanofleeces for efficient OER catalysts. The exhibited excellent electrocatalytic activity stablity in alkaline media. catalyst superior compared to the catalyst, which is comparable state-of-the-art RuO2 catalyst. Density functional theory calculations showed that binding...
Assessing materials' stability under operating conditions is of critical importance to the development device-oriented electrocatalysts, but few efforts have been devoted this on a large scale. In work, using Materials Project data, we explore aqueous 47 814 nonbinary metal oxides typical oxygen reduction/evolution reaction and identify 68 likely acid-stable candidates for electrocatalysts. We also construct an "acid-stable periodic table" guide search new materials electrocatalysis.
Electrocatalytic carbon dioxide reduction (CO
Large-scale deployment of proton exchange membrane (PEM) water electrolyzers has to overcome a cost barrier resulting from the exclusive adoption platinum group metal (PGM) catalysts. Ideally, carbon-supported used at cathode should be replaced with PGM-free catalysts, but they often undergo insufficient activity and stability subjecting corrosive acidic conditions. Inspired by marcasite existed under environments in nature, we report sulfur doping-driven structural transformation...
Finding highly efficient hydrogen evolution reaction (HER) catalysts is pertinent to the ultimate goal of transformation into a net-zero carbon emission society. The design principles for such HER lie in well-known structure-property relationship, which guides synthesis procedure that creates catalyst with target properties as catalytic activity. Here we report general strategy synthesize 10 kinds single-atom-doped CoSe2-DETA (DETA = diethylenetriamine) nanobelts. By systematically analyzing...
Nickel (Ni)-based nanomaterials have been intensively explored as promising noble-metal-free hydrogen evolution reaction (HER) electrocatalysts. Here, we report that uniform sea urchin-like NiSe nanofiber assemblies can be prepared on a large scale by ternary mixed solvent strategy. The new exhibits very high HER activity in 0.5 M H2SO4, comparable to the best performance of well-studied MoS2 catalysts. Tafel slope ∼64 mV per decade was observed for catalyst, suggesting Volmer–Heyrovsky...
Molybdenum carbide (Mo2C) has been considered as a promising non-noble-metal hydrogen evolution reaction (HER) electrocatalyst for future clean energy devices. In this work, we report facile, green, low-cost and scalable method the synthesis of Mo2C-based HER consisting ultrafine Mo2C nanoparticles embedded within bacterial cellulose-derived 3D N-doped carbon nanofiber networks (Mo2C@N-CNFs) using nanostructured biomass precursor. The exhibits remarkable activity (an overpotential 167 mV...