Jump to main content
Jump to site search

Themed collection 2018 Journal of Materials Chemistry A HOT Papers

40 items
Review Article

Innovation and challenges in materials design for flexible rechargeable batteries: from 1D to 3D

Due to the emergence of numerous flexible electronic devices, the design and fabrication of flexible rechargeable batteries with high energy density have attracted great attention.

Graphical abstract: Innovation and challenges in materials design for flexible rechargeable batteries: from 1D to 3D
Review Article

Carbon, nitrogen and phosphorus containing metal-free photocatalysts for hydrogen production: progress and challenges

This article critically reviews the progress and challenges in using metal-free photocatalysts made from carbon, nitrogen and phosphorus used for hydrogen production.

Graphical abstract: Carbon, nitrogen and phosphorus containing metal-free photocatalysts for hydrogen production: progress and challenges
Communication

Electrochemically substituted metal phthalocyanines, e-MPc (M = Co, Ni), as highly active and selective catalysts for CO2 reduction

The Fe center in FePc can be electrochemically substituted by Co and Ni, achieving high activity and stability for CO2 reduction.

Graphical abstract: Electrochemically substituted metal phthalocyanines, e-MPc (M = Co, Ni), as highly active and selective catalysts for CO2 reduction
Communication

Defect engineering of highly stable lanthanide metal–organic frameworks by particle modulation for coating catalysis

A powerful strategy to design the structure, control the particle sizes and fabricate catalytic devices is developed for lanthanide MOFs.

Graphical abstract: Defect engineering of highly stable lanthanide metal–organic frameworks by particle modulation for coating catalysis
Paper

High Performance Concentration Capacitors with Graphene Hydrogel Electrodes for Harvesting Salinity Gradient Energy

Paper

Interfacial Engineering via Inserting Functionalized Water-soluble Fullerene Derivative Interlayers for Enhancing Performance of Perovskite Solar Cells

Paper

Self-Powered Flexible Hybrid Piezoelectric-Pyroelectric Nanogenerator based on Non-woven Nanofiber Membranes

Paper

Phosphorus functionalization for the rapid preparation of highly nanoporous submicron-diameter carbon fibers by electrospinning of lignin solutions

Rapid preparation of low-cost carbon fibers by electrospinning of lignin solutions thanks to the functionalization with H3PO4.

Graphical abstract: Phosphorus functionalization for the rapid preparation of highly nanoporous submicron-diameter carbon fibers by electrospinning of lignin solutions
Paper

In situ g-C3N4 self-sacrificial synthesis of a g-C3N4/LaCO3OH heterostructure with strong interfacial charge transfer and separation for photocatalytic NO removal

A novel g-C3N4/LaCO3OH heterojunction was controllably fabricated via an in situ self-sacrificial strategy and this strategy was extended to synthesize g-C3N4/carbonate compounds.

Graphical abstract: In situ g-C3N4 self-sacrificial synthesis of a g-C3N4/LaCO3OH heterostructure with strong interfacial charge transfer and separation for photocatalytic NO removal
Paper

Gold nanoparticles confined in imidazolium-based porous organic polymers to assemble a microfluidic reactor: controllable growth and enhanced catalytic activity

Gold nanoparticles confined in imidazolium-based porous organic polymers show high activity in a microfluidic reactor.

Graphical abstract: Gold nanoparticles confined in imidazolium-based porous organic polymers to assemble a microfluidic reactor: controllable growth and enhanced catalytic activity
Paper

Borophene and defective borophene as potential anchoring materials for lithium–sulfur batteries: a first-principles study

Lacking effective anchoring materials to suppress the severe shuttle effect is a longstanding issue hindering the development of lithium–sulfur (Li–S) batteries.

Graphical abstract: Borophene and defective borophene as potential anchoring materials for lithium–sulfur batteries: a first-principles study
Paper

Synthesis of STW zeolites using imidazolium-based dications of varying length

Experimental synthesis of STW zeolites using imidazolium-based dications and theoretical simulation of suitable SDAs to produce homochiral STW zeolites.

Graphical abstract: Synthesis of STW zeolites using imidazolium-based dications of varying length
Paper

Integrated perovskite solar capacitors with high energy conversion efficiency and fast photo-charging rate

An integrated perovskite solar capacitor combining a perovskite solar cell and a supercapacitor is developed.

Graphical abstract: Integrated perovskite solar capacitors with high energy conversion efficiency and fast photo-charging rate
Paper

Structural transition in orthorhombic Li5-xHxLa3Nb2O12 garnets induced by a concerted lithium and proton diffusion mechanism

Paper

Controllable growth of SnS2 nanostructures on nanocarbon surfaces for lithium-ion and sodium-ion storage with high rate capability

Structural evolution of SnS2 from vertically or parallelly aligned nanosheets to ultra-small nanocrystals on nanocarbon surfaces is demonstrated and the latter exhibit enhanced rate performance and cycling stability for both Li-ion and Na-ion storage.

Graphical abstract: Controllable growth of SnS2 nanostructures on nanocarbon surfaces for lithium-ion and sodium-ion storage with high rate capability
Paper

Aligning the binder effect on sodium–air batteries

Polymer binders are revealed to dominatingly impact the electrochemical behavior and side reactions/products of sodium-air batteries.

Graphical abstract: Aligning the binder effect on sodium–air batteries
Paper

Enhanced power-conversion efficiency in organic solar cells incorporating copolymeric phase-separation modulators

Fullerene–oligothiophene copolymers acting as donor/acceptor segregation modulators improve the device efficiency, giving the highest values for P3HT:PCBM plastic solar cells.

Graphical abstract: Enhanced power-conversion efficiency in organic solar cells incorporating copolymeric phase-separation modulators
Paper

High performance Li-CO2 batteries with NiO-CNT cathodes

Paper

MOF-derived Zn–Mn mixed oxides@carbon hollow disks with robust hierarchical structure for high-performance lithium-ion batteries

A new hollow yet hierarchical MOF structure is developed to construct robust Zn–Mn oxides@carbon hybrids with excellent lithium-ion storage properties.

Graphical abstract: MOF-derived Zn–Mn mixed oxides@carbon hollow disks with robust hierarchical structure for high-performance lithium-ion batteries
Paper

Facile and template-free fabrication of mesoporous 3D nanosphere-like MnxCo3−xO4 as highly effective catalysts for low temperature SCR of NOx with NH3

Mesoporous 3D nanosphere-like MnxCo3−xO4 was obtained via a template-free method. The formation mechanism was proposed and the synthesis conditions were carefully investigated. The operating temperature window was 75–325 °C when the NOx conversion was above 80%.

Graphical abstract: Facile and template-free fabrication of mesoporous 3D nanosphere-like MnxCo3−xO4 as highly effective catalysts for low temperature SCR of NOx with NH3
Paper

Plasmon-mediated charge dynamics and photoactivity enhancement for Au-decorated ZnO nanocrystals

Correlations among Au content, SPR-mediated charge transfer and electromagnetic response, and the resultant photoactivity enhancement for ZnO–Au nanocrystals were established.

Graphical abstract: Plasmon-mediated charge dynamics and photoactivity enhancement for Au-decorated ZnO nanocrystals
Paper

Oxygen-induced defects at the lead halide perovskite/graphene oxide interfaces

Interfacial interactions between halides of the perovskite precursors and the oxygen groups of GO reduce GO, and determine perovskite yield.

Graphical abstract: Oxygen-induced defects at the lead halide perovskite/graphene oxide interfaces
Paper

In situ encapsulation of core–shell-structured Co@Co3O4 into nitrogen-doped carbon polyhedra as a bifunctional catalyst for rechargeable Zn–air batteries

Co@Co3O4@NC-900 is designed and used as a catalyst for bulk and flexible Zn–air batteries which display good electrochemical performance.

Graphical abstract: In situ encapsulation of core–shell-structured Co@Co3O4 into nitrogen-doped carbon polyhedra as a bifunctional catalyst for rechargeable Zn–air batteries
Paper

Formation of defects and their effects on hydride ion transport properties in a series of K2NiF4-type oxyhydrides

We explore formation and stability of defects, and the hydride ion migration mechanisms in K2NiF4-type oxyhydrides by first principles calculations.

Graphical abstract: Formation of defects and their effects on hydride ion transport properties in a series of K2NiF4-type oxyhydrides
Paper

Computational Screening and First-Principles Investigations of NASICON-Type LixM2(PO4)3 as Solid Electrolytes for Li Batteries

Paper

Novel perylene diimide-based polymers with electron-deficient segments as the comonomer for efficient all-polymer solar cells

Two novel acceptor–acceptor (A–A) type polymeric electron acceptors, PPDI-DTBT and PFPDI-DTBT, which contain perylene diimide (PDI) and fused PDI (FPDI) with electron deficient 4,7-dithienyl-2,1,3-benzothiadiazole (DTBT) units, respectively, are designed and synthesized to investigate their application in all-polymer solar cells (all-PSCs).

Graphical abstract: Novel perylene diimide-based polymers with electron-deficient segments as the comonomer for efficient all-polymer solar cells
Paper

Molecular design with silicon core: toward commercially available hole transport materials for high-performance planar p–i–n perovskite solar cells

We synthesized a low-cost silicon containing HTL materials, achieving an excellent PCE of 19.06% for planar p–i–n perovskite solar cells.

Graphical abstract: Molecular design with silicon core: toward commercially available hole transport materials for high-performance planar p–i–n perovskite solar cells
Paper

A high dielectric constant non-fullerene acceptor for efficient bulk-heterojunction organic solar cells

A non-fullerene acceptor with a high relative dielectric constant (εr) over 9 is developed. It offers an efficiency of 8.5%, which is the best result for organic solar cells employing high εr materials. Further research should focus on morphology optimization to make high εr practically useful in devices.

Graphical abstract: A high dielectric constant non-fullerene acceptor for efficient bulk-heterojunction organic solar cells
Paper

Impact of rotamer diversity on the self-assembly of nearly isostructural molecular semiconductors

Switching bithiophene for thienothiophene reduces the number of rotational conformations, facilitating self-assembly with minimal effects on the electronic structure.

Graphical abstract: Impact of rotamer diversity on the self-assembly of nearly isostructural molecular semiconductors
Paper

On the mesoscale mechanism of synthetic calcium–silicate–hydrate precipitation: a population balance modeling approach

A mesoscale pathway of calcium–silicate–hydrate precipitation, leading to nanocrystallites packing nematically in anisotropic particles is quantitatively described for the first time.

Graphical abstract: On the mesoscale mechanism of synthetic calcium–silicate–hydrate precipitation: a population balance modeling approach
Paper

Sustainable chromic acid oxidation: solar-driven recycling of hexavalent chromium ions for quinone production by WO3 nanosponge photoanodes

Photoelectrochemical chromium ion oxidation from the trivalent to the hexavalent state has been demonstrated by using WO3 nanosponge photoanodes in sulfuric acid electrolytes under simulated sunlight.

Graphical abstract: Sustainable chromic acid oxidation: solar-driven recycling of hexavalent chromium ions for quinone production by WO3 nanosponge photoanodes
Paper

Low thermal conductivity in La-filled cobalt antimonide skutterudites with an inhomogeneous filling factor prepared under high-pressure conditions

La-filled skutterudites with an inhomogeneous filling factor synthesized by high pressure exhibit a remarkably low lattice thermal conductivity.

Graphical abstract: Low thermal conductivity in La-filled cobalt antimonide skutterudites with an inhomogeneous filling factor prepared under high-pressure conditions
Paper

Preparation of highly dispersed carbon supported AuPt nanoparticles via a capping agent-free route for efficient methanol oxidation

Bimetallic AuPt catalysts were synthesized via a facile capping agent-free route. Compared to the catalysts with too much Pt on the surface, the surface Pt-rich catalysts with a few exposed Au atoms exhibit the enhanced methanol oxidation reaction activity due to the stronger synergistic effect between Pt and Au.

Graphical abstract: Preparation of highly dispersed carbon supported AuPt nanoparticles via a capping agent-free route for efficient methanol oxidation
Paper

The Li-storage capacity of SiOC glasses with and without mixed silicon oxycarbide bonds

Mixed bonds in SiOCs lead to a more disordered/defect-free carbon phase with high capacity for reversible storage of Li ions.

Graphical abstract: The Li-storage capacity of SiOC glasses with and without mixed silicon oxycarbide bonds
Paper

Deterioration mechanism of LiNi0.8Co0.15Al0.05O2/graphite–SiOx power batteries under high temperature and discharge cycling conditions

The capacity degradation of NCA/graphite–SiOx batteries under high temperature is attributed to lithium loss from the NCA cathode and structure decay of the graphite–SiOx anode.

Graphical abstract: Deterioration mechanism of LiNi0.8Co0.15Al0.05O2/graphite–SiOx power batteries under high temperature and discharge cycling conditions
Paper

Encapsulating nanoscale zero-valent iron with a soluble Mg(OH)2 shell for improved mobility and controlled reactivity release

NZVI with novel Mg(OH)2 encapsulation for considerably improved mobility, chemical stability, and controlled reactivity release for environmental remediation.

Graphical abstract: Encapsulating nanoscale zero-valent iron with a soluble Mg(OH)2 shell for improved mobility and controlled reactivity release
Paper

The crystal structure and electrical properties of the oxide ion conductor Ba3WNbO8.5

The crystal structure of the novel oxide ion conductor Ba3WNbO8.5.

Graphical abstract: The crystal structure and electrical properties of the oxide ion conductor Ba3WNbO8.5
Paper

A large, ultra-black, efficient and cost-effective dye-sensitized solar module approaching 12% overall efficiency under 1000 lux indoor light

A large, ultra-black, efficient and cost-effective dye-sensitized solar module reaches an overall efficiency of ∼12% under 1000 lux of T5 fluorescent light.

Graphical abstract: A large, ultra-black, efficient and cost-effective dye-sensitized solar module approaching 12% overall efficiency under 1000 lux indoor light
Paper

High valence Mo-doped Na3V2(PO4)3/C as a high rate and stable cycle-life cathode for sodium battery

High valence Mo-doped Na3−5xV2−xMox(PO4)3/C (0 < x < 0.04) has been investigated to promote Na ion diffusion.

Graphical abstract: High valence Mo-doped Na3V2(PO4)3/C as a high rate and stable cycle-life cathode for sodium battery
Paper

Ultrathin phyllosilicate nanosheets as anode materials with superior rate performance for lithium ion batteries

Ultrathin phyllosilicate nanosheets inlayed into 1D tubular carbon frameworks are developed and deliver superior rate performance as anodes for LIBs.

Graphical abstract: Ultrathin phyllosilicate nanosheets as anode materials with superior rate performance for lithium ion batteries
40 items

About this collection

This on-going web collection features all the articles published in Journal of Materials Chemistry A in 2018 marked as HOT, as recommended by referees.  Congratulations to all the authors whose articles are featured!

Spotlight

Advertisements