Edison H. Ang

Edison H. Ang
Nanyang Technological University | ntu · National Institute of Education

Professor
My team is currently working on nanomaterials for water, energy and food nexus applications.

About

65
Publications
7,476
Reads
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2,311
Citations
Additional affiliations
July 2019 - June 2020
Nanyang Technological University
Position
  • PostDoc Position
Education
January 2013 - February 2017
Nanyang Technological University
Field of study
  • Materials Science and Engineering
August 2009 - July 2012
Nanyang Technological University
Field of study
  • Chemistry and Biological Chemistry

Publications

Publications (65)
Article
The accelerating electrification has sparked an explosion in lithium‐ion batteries (LIBs) consumption. As the lifespan declines, the substantial LIBs will flow into the recycling market and promise to spawn a giant recycling system. Nonetheless, since the lack of unified guiding standard and nontraceability, the recycling of end‐of‐life LIBs has fa...
Article
Although potassium-ion batteries (KIBs) are considered a very promising energy storage system, their development for actual application still has a long way to go. Advanced electrode materials, as a fundamental component of KIBs, are essential for optimizing electrochemical performance and promoting effective energy storage. Due to their unique str...
Article
Two-dimensional materials composed of all-oriented branches assembled with active Ag nanospecies might be attractive in the microbial inhibition application because of improved Ag ion release behavior and interaction with targeted substance. Herein, we report an excellent Ag-AlNiO nanocomposite antimicrobial materials by Ni-doping AlOOH triggering...
Article
Carbon‐based materials are a new class of highly conductive materials that have shown cutting‐edge performance in energy storage. However, the lack of a rational design for three‐dimensional (3D) structures continues to limit its performance in lithium‐ion batteries (LIBs). Herein, we report a 3D layered titanium carbide (TiC) prepared by a facile...
Article
We demonstrate that by simply solvothermal treatment followed by carbonization can turn plastic waste into graphitic carbon nanosheets, having excellent photothermal conversion efficiency (99%) that is capable of generating high...
Article
In comparison with lithium-ion batteries, sodium-ion batteries (SIBs) have been proposed as an alternative for large-scale energy storage. However, finding an anode material that can overcome the sluggish electrochemical reaction kinetics and fast capacity fading caused by large volume expansion during cycling is problematic. In this study, the int...
Article
Zinc-ion batteries (ZIBs) are a main focus worldwide for their potential use in large-scale energy storage due to their abundant resources, environmental friendliness, and high safety. However, the cathode materials of ZIBs are limited, requiring a stable host structure and fast Zn2+ channel diffusion. Here, we develop a strategy for the intercalat...
Article
Transition metal selenides are widely explored as promising anodes for sodium-ion batteries (SIBs) because of their high theoretical capacity. However, rapid capacity decay caused by the structural collapse during cycling greatly hampers their applications in SIBs. Herein, we report a synergistic engineering of interface and structure to synthesize...
Article
The number of lithium‐ion batteries (LIBs) is steadily increasing in order to meet the ever‐growing demand for sustainable energy and a high quality of life for humankind. At the same time, the resulting large number of LIB waste certainly pose safety hazards if it is not properly disposed of and will seriously harm the environment due to its inher...
Article
Cost‐effective nanostructured carbon hybrids have received global attention in sustainable energy research due to their stable structure and high conductivity. Herein, the nickel‐cobalt nanoparticles embedded carbon nanotube hybrid (NCCH) derived from Prussian blue analogs (PBAs) has been prepared by a carbonitridation pyrolysis process. Simultaneo...
Article
The complexity of environmental pollution poses a severe threat to public health, attracting considerable interest in the search for functional nanomaterials for dye removal and direct disinfection together in wastewater. Herein, we present a deft synthetic strategy for constructing Ag functionalized hierarchically structured nanosilica (Ag modifie...
Article
Diabetes is a type of disease that threatens human health, which can be diagnosed based on the level of glucose in the blood. Recently, various MOF-based materials have been developed as efficient electrochemical glucose sensors because of their tunable pore channels, and large specific surface area and well dispersed metallic active sites, etc. In...
Article
Anions in the electrolyte are usually ignored in conventional "rocking-chair" batteries because only cationic de-/intercalation is considered. An ingenious scheme combining LiMn0.7Fe0.3PO4 ([email protected]) and graphite as a hybrid cathode for lithium-ion batteries (LIBs) is elaborately designed in order to exploit the potential value of anions f...
Article
Full-text available
Rechargeable zinc‐ion batteries (ZIBs) have recently attracted attention for applications in energy storage systems owing to their intrinsic safety, low cost, environmental compatibility, and competitive gravimetric energy density. To enable the practical applications of ZIBs, their energy density must be equivalent to the existing commercial lithi...
Article
Efficient, inexpensive and stable electrocatalysts are challenging and desperately required in order to complement the water electrolysis of noble metal catalysts. Herein, a porous nitrogen-doped carbon wrapped Co-Mo2C dual Mott–Schottky heterostructure has been successfully fabricated by carbonization of Co-Zn bimetal metal-organic framework (MOF)...
Article
Transition metal selenides have attracted enormous research attention as anodes for lithium-ion batteries (LIBs) due to their high theoretical specific capacities. Nevertheless, the low electronic conductivity and dramatic volume variation in electrochemical reaction processes result in rapid capacity fading and poor rate capability. Herein, a meta...
Article
Sodium‐ion batteries (SIBs), owing to the natural abundance and low cost of sodium resources, are the promising alternative to lithium‐ion batteries (LIBs) in the field of large‐scale energy storage. Nevertheless, the development of appropriate anodes for SIBs is still a challenge. Vanadium oxides with diverse crystallographic structures and high t...
Article
The abundant natural resources and low cost benefits of zinc-ion batteries (ZIBs) and potassium-ion batteries (KIBs) offer a better alternative to lithium-ion batteries (LIBs). Nevertheless, large radius of K+ and high charge density of Zn2+ lead to sluggish electrochemical kinetics and the development of appropriate electrode materials for KIBs an...
Article
Full-text available
With the constant focus on energy storage devices, layered materials are ideal electrodes for the new generation of highly efficient secondary ion batteries and supercapacitors due to their flexible 2D structures and high theoretical capacities. However, the small interlayer distances in layered electrode materials and the strong Columbic interacti...
Article
Aqueous zinc‐ion batteries (AZIBs) have received significant research attention and widely investigated because of their high intrinsic safety and cost effectiveness. Manganese dioxide has been regarded as a promising cathode material for AZIBs, attributed to its friendliness, abundant resources, high theoretical capacity, and high working voltage....
Article
Potassium‐ion batteries (PIBs) have become a promising energy storage device for large‐scale energy storage systems. For overcoming the shortages of low initial coulombic efficiency, poor potassium ion reaction kinetics, and volume changes in the PIB system, novel structural design of electrode material (anode and cathode), synthesis methods, ingen...
Article
Aqueous zinc-ion batteries (ZIBs), due to sluggish Zn2+ diffusion kinetics, continue to face challenges in terms of achieving superior high rate, long-term cycling and low-temperature properties. Herein, K+ pre-intercalated layered V2O5 (K0.5V2O5) composites with metallic feature are capable of delivering excellent zinc storage performance. Specifi...
Article
The self-catalyzed growth of nano-structures on material surfaces is an economic and time-efficient way of designing multifunctional electrocatalysts for vast applications. NiCo bimetallic nanoparticles embedded in N-doped nanotubes (NCNTs) on carbon cloth substrate were formed here by a simple two-step method via hydrothermal treatment followed by...
Article
Owing to promising applications in aircraft, military field and submarine etc., lithium-sulfur (Li-S) batteries with high energy density (2500 Wh·kg-1) are emerging as the next-generation energy storage system at low...
Article
Full-text available
Uniform nitrogen-doped CoSe 2 yolk–shell spheres with improved electrochemical kinetics have been synthesized, which deliver excellent sodium storage performance in terms of ultra-high-rate capability and long cycling durability.
Article
Reuse of waste biomass has received more and more attention in recent years due to resource and environmental problems. The development of green, environmentally friendly and cost-effective electrode materials for...
Article
Sodium-ion batteries (SIBs) are emerging as an alternative to lithium-ion batteries (LIBs) in the fields of medium and large-scale stationary energy storage due to the sufficient natural abundance and low cost of sodium resources. The enhanced electrochemical performance of electrode materials is desired to accelerate the development of SIB systems...
Article
Full-text available
Solid‐state Zn–air batteries (ZABs) hold great potential for application in wearable and flexible electronics. However, further commercialization of current ZABs is still limited by the poor stability and low energy efficiency. It is, thus, crucial to develop efficient catalysts as well as optimize the solid electrolyte system to unveil potential o...
Article
In recent decades, both traditional Li-ion batteries and emerging metal-ion batteries have become critical in driving the advancement of energy storage systems (ESSs). However, the lack of appropriate and inexpensive electrode materials that can provide high energy/power density, long-term cyclability and high rate capability is a major obstacle to...
Article
Due to high energy density, abundant resource and eco-friendly efficiency, rechargeable zinc air batteries (ZABs) have been recognized as promising alternative energy storage systems for conventional lithium-ion batteries for powering vehicles. However, the sluggish reaction kinetics of oxygen reduction and oxygen evolution on the air electrodes of...
Article
Rechargeable aqueous metal-ion batteries are very promising as alternative energy storage devices during the post-lithium-ion era because of their green and safe inherent features. Among the different aqueous metal-ion batteries, aqueous zinc-ion batteries (ZIBs) have recently been studied extensively due to their unique and outstanding benefits th...
Article
Full-text available
Orthorhombic molybdenum trioxide (MoO3) is one of the most promising anode materials for sodium‐ion batteries because of its rich chemistry associated with multiple valence states and intriguing layered structure. However, MoO3 still suffers from the low rate capability and poor cycle induced by pulverization during de/sodiation. An ingenious two‐s...
Article
Lithium shortage and growing demand for electricity storage encourage researchers to look for new alternative energy storage materials. Due to the abundant potassium resources, similar redox potential to lithium metal and low cost, potassium ion batteries (PIBs), as one of the promising alternatives, are applied in energy storage research recently....
Article
Combining different active states of metal species together in special configuration might trigger interesting synergetic effect for catalytic process. As a proof-of-concept, the present study has developed an ingenious approach to reach functional mesoporous molecular sieve which in-situ encapsulates two different states of highly-active FeOx insi...
Article
Doped nanocrystals such as manganese – doped zinc sulfide (ZnS:Mn) are useful nanomedicine probes for cancer cell labelling and anticancer drug delivery. However, the synthesis and retention of fluorescence of these nanocrystals is highly indispensable for efficient cell theranostics. Herein, we report a modified synthesis of highly fluorescent hydr...
Article
The Cover Feature illustrates that the alloying effect in a series of bismuth oxyhalides BiOClnBr1−n (0≤n≤1) not only enhances the adsorption capacity of nitrate on the surface of the material, but also induces oxygen vacancy defects and enhances catalytic activity. More information can be found in the Article by L. Wang et al. on page 110 in Issue...
Article
Transition metal dichalcogenides (TMDs) represent an emerging class of materials showing promise in a variety of applications. The judicious stacking of two-dimensional (2D) TMDs has been reported to give high-flux and energy-efficient membranes for high-resolution molecular sieving, with permeation greater than the state-of-the-art graphene-based...
Article
Recent studies showed that alloyed bismuth oxyhalide have been widely used in photocatalytic water treatment processes due to its superior photocatalytic activity. However, there is no report about the removal of NO3− for alloyed bismuth oxyhalides, and the mechanism of the effect of alloying on NO3− reduction activity is still unclear. In this wor...
Article
Rational-design and synthesis of transition-metal compounds with outstanding electrochemical activity and durability for renewable energy systems have attracted tremendous research interest in recent years. Herein, we report a facile and unique strategy to synthesize the N-doped carbon nanotubes-encapsulated Ni nanoparticles on reduced graphene oxi...
Article
Membranes are playing increasingly important roles in purification and separation processes due to inherent advantages like facile, low-cost and green compared to the traditional thermal-driven processes. To enhance permeability to further augment the feasibility of membrane-filtration, emerging two-dimensional (2D) materials are promising as build...
Article
Full-text available
Transition-metal-doped tungsten semicarbide nanosheets (M-doped W 2 C NSs, M=Fe, Co, and Ni) have been synthesized through carburization of the mixture of tungsten trioxide, polyvinylpyrrolidone, and metal dopant. The nanosheets grow directly on the W mesh and have the lateral dimension of several hundreds of nm to a few μ m with a thickness of few...
Article
Herein, we demonstrate an energy-efficient means for water desalination using a three-dimensional (3D) porous spacer for plasmon-enhanced solar membrane distillation (MD). This unique spacer rationally designed from noble metals, which generates 60 l m ⁻² of fresh water per day, had a photothermal efficiency of 98% (under 0.8 sun).
Article
Full-text available
Highlights • Bimetallic oxides nanoparticles derived from metal–oleate complexes embedded in 3D graphene networks were fabricated by a facile and rational design approach. • The unique porous architecture promotes charge transfer so as to enhance the reversible capacity. • The synergetic effect between the 0D nanoparticles and 3D graphene networks...
Article
Full-text available
Nanostructured hybrid metal sulfides have attracted intensive attention due to their fascinating properties that are unattainable by the single‐phased counterpart. Herein, we report an efficient approach to construct cobalt sulfide/molybdenum disulfide (Co9S8/MoS2) wrapped with reduced graphene oxide (rGO). The unique structures constructed by ultr...
Article
Despite membrane distillation (MD) being well acknowledged as a green technology due to the capability to treat water using waste heat, the efficient use of this heat remains one of the biggest challenge for MD to be cost-effective. In this study, we harnessed the high thermal conductivity of metallic spacers to improve the energy efficiency in DCM...
Article
Full-text available
In this manuscript, we utilize a facile and efficient step-by-step strategy to synthesize three-layered C@TiO2@MoS2 hierarchical nanocomposite. This novel hybrid serves as anode materials in lithium-ion batteries (LIBs). The designed structure, in which MoS2 nanosheets are uniformly grown on TiO2 coated hollow carbon spheres, can enhance the electr...
Article
Water and energy are key sustainability issues that need to be addressed. Photocatalysis represents an attractive means to not only remediate polluted waters, but also harness solar energy. Unfortunately, the employment of photocatalysts remains a practical challenge in terms of high cost, low efficiency, secondary pollution and unexploited water m...
Article
Full-text available
In this manuscript, we synthesize a porous three-dimensional anode material consists of molybdenum dioxide nanodots anchored on the nitrogen/sulfur co-doped reduced graphene oxide (3D MoO2/NP-NSG) through hydrothermal, lyophilization and thermal treatment. First, the NP-NSG is formed via hydrothermal treatment using graphene oxide (GO), hydrogen pe...
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Herein, we demonstrate that by simply adjusting the concentration of ethanolamine (EA) in the Ni growth solution, the orientation of Ni nanocrystallite growth can be controlled, leading to the formation...
Article
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Porous electrocatalyst for hydrogen production. 3D hierarchical porous molybdenum carbide provides low operating potential (97 mV at 10 mA cm−2). These beneficial textures of large specific surface area (302 m2 g−1) and hierarchical porous architecture containing dominant pore size distribution peak at 11 Å in width can provide large surface active...
Article
Full-text available
We compare and analyze the structural characteristics of seed-mediated synthesis of heterostructured CuS-ZnS nanocrystals (NCs) and Cu-doped ZnS (ZnS:Cu) NCs synthesized by two different protocols. At high Cu dopant concentrations, segregated sub-clusters of ZnS and CuS are observed. The photoluminescence quantum yield of ZnS:Cu NCs is found to be...
Article
Lithium-ion capacitors (LICs) are hybrid energy storage devices that have the potential to bridge the gap between conventional high-energy lithium-ion batteries and high-power capacitors by combining their complementary features. The challenge for LICs has been to improve the energy storage at high charge−discharge rates by circumventing the discre...
Article
Transition metal-nitrogen/carbon (M-N/C, M = Fe, Co) catalysts are synthesized using environmentally friendly histidine-tag-rich elastin protein beads, metal sulfate and water soluble carbon nanotubes followed by post-annealing and acid leaching processes. The obtained catalysts are used as cathode materials in lithium-O2 batteries. It has been dis...
Article
Full-text available
In this work, the one-dimensional Co3O4@TiO2 core-shell electrode material with superior electrochemical performance is fabricated by a convenient and controllable route. The approach involves two main steps: the homogeneous deposition of polydopamine and TiO2 layers in sequence on cobalt coordination polymer and the thermal decomposition of polyme...
Article
Full-text available
Nitrogen and sulfur dual-doped Mo2 C nanosheets provide low operating potential (-86 mV for driving 10 mA cm(-2) of current density). Co-doping of N and S heteroatoms can improve the wetting property of the Mo2 C electrocatalyst in aqueous solution and induce synergistic effects via σ-donation and π-back donation with hydronium cation.
Article
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In this study, we present a new strategy on controlling the interaction between the Li2O2-catalyst interfaces through improving the affinity of catalyst surface towards Li2O2 molecules. A seed-mediated growth approach has been developed to synthesize Pt nanosheets on the stainless steel mesh using Fe as the seed. We further grow a uniform layer of...
Article
The coupling of proteins with self-assembly properties and proteins that are capable of recognizing and mineralizing specific inorganic species is a promising strategy for the synthesis of nanoscale materials with controllable morphology and functionality. Herein, GPG-AG3 protein fibers with both of these properties were constructed and served as t...
Article
Full-text available
Herein we reported a green synthetic route for the preparation of Au–Pt core–shell nanoparticle chains in a two-step route without the use of any surfactants. In the synthesis, compressed hydrogen was used as a reducing reagent, which also promoted the assembly of particle chains. The as-prepared monodispersed gold nanoparticles were manipulated by...
Article
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Metallopolymer nanowalls were prepared through a simple wet-chemical process using reduced graphene oxides as heterogeneous nucleation aids, which also help to form conductive electron paths. The nanowalls grow vertically on graphene surface with 100 -200 nm in widths and ~ 20 nm in thickness. The Fe-based metallopolymer nanowall based electrode sh...
Article
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We report the synthesis of ultrathin S-doped MoSe2 nanosheets demonstrating enhanced HER catalysis with a low onset overpotential of 90 mV and a Tafel slope of 58 mV per decade. We attribute the improved catalytic effects to the proliferation of unsaturated HER active sites in MoSe2 resulting from S-doping.
Article
Full-text available
We report a novel method to prepare bind-free graphene foams as O2 electrodes for Li-O2 batteries. The graphene foams are synthesized by electrochemical leavening of the graphite papers, followed by annealing in inert gas to control the amount of structural defects in the graphene foams. It was found that the structural defects were detrimental to...

Projects

Project (1)
Project
Improve the separation performance of various advanced membrane technologies.