Themed collection Global Energy Challenges: Materials and Nanotechnology
Templated dewetting: designing entirely self-organized platforms for photocatalysis
Noble metal dewetting on self-organized TiO2 nanotubes – nanoscopic design of photocatalysts towards green H2 generation.
Topochemical molten salt synthesis for functional perovskite compounds
This report reviews various topochemical molten salt synthesis (TMSS) reactions and their applications in fulfilling the demand for the tunable morphology of perovskite materials.
Chemical principles underpinning the performance of the metal–organic framework HKUST-1
HKUST-1 has emerged as the bastion of multifunctional hybrid solids; we discuss the past, present and future of Cu-based metal–organic frameworks.
Layered host–guest long-afterglow ultrathin nanosheets: high-efficiency phosphorescence energy transfer at 2D confined interface
The orderly assembly of photoactive donor and acceptor phosphors within the gallery of 2D layered nanosheets presents obviously long-lived luminescence and effective energy transfer.
Achieving nano-gold stability through rational design
Au nanoparticles isolated on the tips of a thermally stable, radially aligned nano-structure providing a highly sinter-resistant catalyst.
Fabrication of porous nanoflake BiMOx (M = W, V, and Mo) photoanodes via hydrothermal anion exchange
This paper describes a simple hydrothermal anion exchange method to synthesize Bi-based binary metal oxides (BiMOx (M = W, V, and Mo)) with controlled morphologies used as photoanodes for photoelectrochemical water oxidation.
The dual capture of AsV and AsIII by UiO-66 and analogues
UiO-66 and analogues were successfully tailored to chemoselectively capture AsV oxyanions at the hydroxylated node and neutral AsIII species with the thiolated organic linkers. More efficient and faster uptake of AsV can be achieved with increasing defect densities, increasing pore aperture sizes, and decreasing particle sizes.
Molecular engineering of Ni–/Co–porphyrin multilayers on reduced graphene oxide sheets as bifunctional catalysts for oxygen evolution and oxygen reduction reactions
Ni– and Co–porphyrin multilayers on reduced graphene oxide (rGO) sheets are reported as novel bifunctional catalysts for the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR).
Bismuth oxyhalides: synthesis, structure and photoelectrochemical activity
We report the synthesis and photoelectrochemical assessment of phase pure tetragonal matlockite structured BiOX (where X = Cl, Br, I) films.
A computational study of CH4 storage in porous framework materials with metalated linkers: connecting the atomistic character of CH4 binding sites to usable capacity
Open-metal sites are shown to significantly increase the CH4 storage capacity of porous materials. It is shown that the capacity is not determined solely by their CH4 affinity, but also by their geometry as well as by guest molecules.
Noble-metal-free Co3S4–S/G porous hybrids as an efficient electrocatalyst for oxygen reduction reaction
A high-efficiency noble-metal-free oxygen reduction reaction (ORR) catalyst was obtained based on the pyrolysis of the inexpensive precursor cobalt dithiolene (an S4-chelate complex) on simultaneously reduced graphene oxide (GO) as a support matrix.
Unprotected and interconnected Ru0 nano-chain networks: advantages of unprotected surfaces in catalysis and electrocatalysis
Surfactant- and support-free metallic, interconnected and unprotected Ru nano-chain networks are synthesized and screened for catalytic nitro arene hydrogenation and OER studies. Their excellent catalytic and electrocatalytic activities are due to the advantages of having unprotected Ru0 surfaces.
Enhanced aging properties of HKUST-1 in hydrophobic mixed-matrix membranes for ammonia adsorption
The metal-organic framework (MOF) HKUST-1 incorporated into a mixed-matrix membrane (MMM) exhibits enhanced water stability while maintaining gas removal capabilities commensurate with those of the free powder form.
Metal–organic framework-based CoP/reduced graphene oxide: high-performance bifunctional electrocatalyst for overall water splitting
A Co-based MOF/GO sandwich-type composite with a sheet-like shape was fabricated, and converted to porous CoP/rGO with a retained layered structure. CoP/rGO exhibits superb HER activity in acid solution, and can also be used as a bifunctional catalyst for water splitting in basic media.
Developing efficient heavy-atom-free photosensitizers applicable to TTA upconversion in polymer films
Heavy-atom-free triplet photosensitizers are developed and visible-to-ultraviolet photon upconversion is realized via triplet–triplet annihilation.
Mechanical energy storage performance of an aluminum fumarate metal–organic framework
Determination of the mechanical energy storage performance of the aluminum fumarate metal–organic framework A520.
CH3NH3PbI3 perovskite single crystals: surface photophysics and their interaction with the environment
Structural inhomogeneity on a micrometer-scale across a CH3NH3PbI3 single crystal is responsible for a local modulation of the optical band gap, which is also highly sensitive to humidity.
Single-crystalline dendritic bimetallic and multimetallic nanocubes
Single-crystalline highly porous nanocubes with complex 3D dendritic structure, uniform cubic morphology, and tunable bimetallic and multimetallic compositions were prepared by tailoring the growth kinetics in one-pot synthesis.
Tuning fluorocarbon adsorption in new isoreticular porous coordination frameworks for heat transformation applications
We report adsorption behaviors of a typical fluorocarbon R22 (CHClF2) in a new series of isoreticular porous coordination frameworks [Zn4O(bpz)2(ldc)].
Copper doped ceria porous nanostructures towards a highly efficient bifunctional catalyst for carbon monoxide and nitric oxide elimination
Cu2+ doped CeO2 porous nanomaterials were synthesized by calcining CeCu–MOF nanocrystals. They exhibited a superior bifunctional catalytic performance for CO oxidation and selective catalytic reduction of NO.
Fe(III) phytate metallogel as a prototype anhydrous, intermediate temperature proton conductor
Protogenic phytic acid is immobilized by its gelation with iron nitrate in DMF. The resulting pelletized xerogel is observed to show a high proton conductivity of 2.4 × 10−2 S cm−1 at 120 °C and is tried as solid electrolyte for dry H2/O2 fuel cell operation.
History-dependent ion transport through conical nanopipettes and the implications in energy conversion dynamics at nanoscale interfaces
We report striking time-dependent ion transport characteristics at nanoscale interfaces in current–potential (I–V) measurements and theoretical analyses.
About this collection
We are delighted to present an online collection showcasing recently published articles in the field of energy. To address major issues facing our planet, researchers all over the world have increasingly focused their efforts on finding solutions to these energy challenges. These articles highlight some of the excellent work that tackles important global challenges related to energy. We hope you enjoy reading this collection!