Themed collection Recent Open Access Articles
On the climate impacts of blue hydrogen production
Natural gas based hydrogen production with carbon capture and storage is referred to as blue hydrogen.
Recycling bread waste into chemical building blocks using a circular biorefining approach
Food waste is a global problem, causing significant environmental harm and resulting in substantial economic losses globally.
Recent trends in graphene supercapacitors: from large area to microsupercapacitors
In this perspective, the recent trends in graphene supercapacitor research are shown, from the use of pseudocapacitor elements to enhance the performance of large-area electrodes, to its miniaturization driven by versatile fabrication techniques.
Operando isotope selective ammonia quantification in nitrogen reduction studies via gas chromatography-mass spectrometry
Direct, fast and sensitive isotopic ammonia detection is key to accessing reliable NRR experiments and accelerate catalyst screening. We develop a GC-MS method to detect NH3 down to 1 ppm in the gas phase, in real-time and without external manipulation.
In situ formation of a molecular cobalt(III)/AgCl photocatalyst for visible-light water oxidation
A unique photocatalyst that consists of a molecular Co(III) species and wide-bandgap AgCl is presented. Even without a physical connection between the two components, the Co(III)/AgCl photocatalyst showed water oxidation activity under visible light.
Separating bulk and surface processes in NiOx electrocatalysts for water oxidation
Nickel oxyhydroxide electrocatalysts are highly active for water oxidation and swell when electrochemically activated. In this thickness dependence study, we find only the upper surface (<5 nm) is active during water oxidation catalysis.
Parameter optimisation for electrochemically activated MoTe2
Revealing the optimal parameters responsible for a dramatic in operando reduction of the overpotential in a 2D metal chalcogenide electrocatalyst for the hydrogen evolution reaction.
Increased hydrogen partial pressure suppresses and reverses hydrogen evolution during Pd catalysed electrolysis of CO2
Control over selectivity towards HCOO− rather than H2 is acquired by using elevated pressure of hydrogen during CO2 electrolysis.
Polymer reinforced carbon fiber interfaces for high energy density structural lithium-ion batteries
Interface engineering enables a practical multifunctional advantage in a structural battery.
Hidden figures of photo-charging: a thermo-electrochemical approach for a solar-rechargeable redox flow cell system
Achieving high current densities without thermal performance degradation at high temperatures is one of the main challenges for enhancing the competitiveness of photo-electrochemical energy storage systems.
Sb2S3 solar cells with a cost-effective and dopant-free fluorene-based enamine as a hole transport material
A cost-effective dopant-free fluorene-based enamine as a hole transport material for semi-transparent Sb2S3 solar cells is successfully demonstrated.
Indoor light harvesting lead-free 2-aminothiazolium bismuth iodide solar cells
2-Aminothiazolium bismuth iodide planar n–i–p solar cells have been explored for the first time to harvest energy from indoor white LED and near-UV LED (395–400 nm) in addition to 1 sun.
Inverted organic photovoltaics with a solution-processed Mg-doped ZnO electron transport layer annealed at 150 °C
Mg acetate is added to Zn acetate solutions to form Mg-doped ZnO electron transport layers with an annealing temperature of 150 °C. Application of the Mg-doped ZnO in organic photovoltaic enhances the efficiency compared to devices with undoped ZnO.
Impact of lifetime on the levelized cost of electricity from perovskite single junction and tandem solar cells
The calculated levelized cost of electricity for single junction and tandem devices show that when the time for perovskite devices to degrade to 85% of the original output (T85) is only 3 years, tandem device are economically favorable.
Mono-dimensional and two-dimensional models for chemical looping reforming with packed bed reactors and validation under real process conditions
Chemical looping reforming (CLR) is an emerging hydrogen/syngas production technology, integrated with CO2 capture.
A highly productive mixotrophic fed-batch strategy for enhanced microalgal cultivation
A highly productive fed-batch cultivation strategy is presented, that consists of intermittent pulses of organic carbon that promotes mixotrophic microalgal growth whilst favouring starch and lipid formation.
Efficient bandgap widening in co-evaporated MAPbI3 perovskite
Co-evaporated perovskite solar cells have shown outstanding scalability, intrinsic stability, high efficiency and adaptability on rough surfaces. Here we present an optimal hybrid method to wide the co-evaporated MAPbI3's bandgap by a MABr treatment.
Extended oligo-cyclopentadithiophene dyes for liquid and solid-state dye-sensitised solar cells
Extended oligo-cyclopentadithiophene dyes show higher electron recombination resistance and a longer electron lifetime. With unusually thin TiO2 of 0.96 μm, high photocurrent density is achieved for ssDSSCs.
The potential scarcity, or not, of polymeric overall water splitting photocatalysts
High-throughput virtual screening shows that polymers that can thermodynamically drive water splitting are not rare and that efficient water oxidation co-catalysts hold the key to experimentally discovering water-splitting polymeric photocatalysts.
The effects of oxygen pressure on the discharge performance of potassium–oxygen batteries
Applying high oxygen pressure drastically improves the discharge performance of potassium-oxygen batteries. High oxygen pressure can also prevent parasitic reactions leading towards K2SO4 and K2CO3 induced by oxygen depletion within the cathode.
Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME3–5 with fossil diesel
Using life cycle assessment, we explore the conditions under which a fleet-wide blending of OME3–5 with fossil diesel can reduce environmental impacts in terms of CO2, NOx, and soot emissions.
A flexible self-poled piezocomposite nanogenerator based on H2(Zr0.1Ti0.9)3O7 nanowires and polylactic acid biopolymer
Design of a low-cost, eco-friendly, self-poled and flexible piezoelectric nanogenerator based on lead-free H2(Zr0.1Ti0.9)3O7 piezo-nanowires and polylactic acid biodegradable piezopolymer.
Towards decarbonization of shipping: direct emissions & life cycle impacts from a biofuel trial aboard an ocean-going dry bulk vessel
Emissions from a dry bulk vessel operating on a biofuel blend were measured. Although marginal differences were observed in CO2 emissions from combustion compared to conventional marine fuels, life cycle CO2 emissions can be reduced by up to 40%.
An open-source platform for 3D-printed redox flow battery test cells
A framework for improving cell design and providing researchers with low-cost, open-source, 3D-printed redox flow battery test cells.
Phase transformations in the nickel phosphide system induced by transition-metal doping and their electro-catalytic study
Nickel phosphides were formed from Ni salt in TOPO/TOP or HDA/TOP and phase transformations from Ni2P to Ni5P4 and vice versa was observed by doping with Cu or Mn salts. Doping effect on phase transition and electrocatalytic properties is studied.
Elucidating the roles of acid site nature and strength in the direct conversion of levulinic acid into ethyl valerate: the case of Zr-modified beta zeolite-supported Pd catalysts
The strong Brønsted and Lewis acid sites are active in the tandem conversion of levulinic acid into ethyl valerate. The intrinsic activity of the former is more significant and the Pd/HBEA catalyst deactivation is partially reversible by calcination.
Microstructured nitrogen-doped graphene-Sn composites as a negative electrode for high performance lithium-ion hybrid supercapacitors
Microstructured nitrogen-doped graphene-Sn synthetized in one step for high performance and long-term cycling stability lithium-ion capacitors.
The contribution of biomass and waste resources to decarbonizing transportation and related energy and environmental effects
Analyzed the extent to which biomass can contribute to the decarbonization of transportation as electrification of the light-duty fleet increases.
Green hydrogen and platform chemicals production from acidogenic conversion of brewery spent grains co-fermented with cheese whey wastewater: adding value to acidogenic CO2
The biotechnological production of fuel and chemicals from renewable, organic carbon-rich substrates offers a sustainable way to meet the increasing demand for energy.
Mesocrystal TiO2 films: in situ topotactic transformation and application in dye-sensitised solar cells
Mesocrystal TiO2 films were obtained via an in situ topotactic transformation using printed NH4TiOF3 films as a precursor, and performed well in dye sensitised solar cells as either single-layer photoanodes or scattering layers.
Transparent porous polymer sheets for efficient product separation in solar water splitting
The crossover and ohmic losses of porous polymer sheets used as transparent product separators in solar water splitting cells are evaluated using multiphysics simulation and validation experiments.
Efficiency improvement for perovskite-inspired Cs3Sb2I9 solar cells using P3HT as the hole transport material
In this work, we introduce P3HT (poly(3-hexylthiophene-2,5-diyl)) as an efficient hole transport material (HTM) for lead-free Cs3Sb2I9 perovskite-inspired solar cells.
Carbon dioxide to bio-oil in a bioelectrochemical system-assisted microalgae biorefinery process
A novel biorefinery approach, combining microbial electrosynthesis and heterotrophic microalgae, aimed at producing a biodiesel compatible oil from CO2.
Electrocatalytic reduction of protons to dihydrogen by the cobalt tetraazamacrocyclic complex [Co(N4H)Cl2]+: mechanism and benchmarking of performances
The mechanism of H2 evolution catalyzed by the [Co(N4H)Cl2]+ complex is elucidated with quantitative determination of the rate-constants for the various protonation steps, and the identification of the aliphatic amine to act as a proton relay.
Shelf lifetime analysis of organic solar cells combining frequency and time resolved techniques
Combined impedance spectroscopy and photovoltage/photocurrent transient techniques with dark J–V modelling was employed to study the shelf ISOS-D1 stability of organic solar cells.
On the environmental competitiveness of sodium-ion batteries under a full life cycle perspective – a cell-chemistry specific modelling approach
Assessing different sodium-ion against current lithium-ion battery cells shows large difference between cell chemistries and a good environmental performance for manganese and Prussian blue-based cathodes under a full life cycle perspective.
An integrated biorefinery to produce 5-(hydroxymethyl)furfural and alternative fuel precursors from macroalgae and spent coffee grounds
In this study an integrated biorefinery is presented, producing 5-hydroxymethylfurfural (HMF) and products from the hydrothermal liquefaction of spent coffee grounds blended with macroalgae.
Carbon dioxide reduction mechanism on Ru-based electrocatalysts [Ru(bpy)2(CO)2]2+: insights from first-principles theory
Solar fuel production through the so-called artificial photosynthesis has attracted a great deal of attention to the development of a new world energy matrix that is renewable and environmentally friendly.
Spatial reactant distribution in CO2 electrolysis: balancing CO2 utilization and faradaic efficiency
The production of value added C1 and C2 compounds within CO2 electrolyzers has reached sufficient catalytic performance that system and process performance – such as CO2 utilization – have come more into consideration.
Thermogalvanic energy harvesting from forced convection cooling of 100–200 °C surfaces generating high power density
Realistically useful level 10 W m−2 electric power generation is demonstrated during liquid cooling of a heat releasing surface using a thin thermal boundary layer and thermally stable electrolyte flowing between non-isothermal electrodes.
Novel single pass biogas-to-diesel process using a Fischer–Tropsch catalyst designed for high conversion
Single pass Fischer–Tropsch biogas-to-diesel process for off-grid fuel production in remote regions. Diesel yields optimized by operating at a higher-than-industrial CO conversions of 80% with a manganese-promoted cobalt catalyst.
Is electrochemical CO2 reduction the future technology for power-to-chemicals? An environmental comparison with H2-based pathways
Minimum development requirements for electrochemical CO2 reduction (eCO2R) to compete against H2-based power-to-chemical pathways.
Intermetallic compounds M2Pt (M = Al, Ga, In, Sn) in the oxygen evolution reaction
The OER activity of isostructural M2Pt (M = Al, Ga, In, Sn) compounds is governed by the nature of counterpart element (M), its leaching rate and corresponding change of the Pt electronic state.
Comparison of homogeneous and heterogeneous catalysts in dye-sensitised photoelectrochemical cells for alcohol oxidation coupled to dihydrogen formation
Dye-sensitised photoelectrochemical cells (DSPECs) for light-driven oxidative organic reactions and simultaneous reductive hydrogen production are reported, using TEMPO as catalyst/mediator either in homogeneous phase or immobilized on the electrode.
Operation of calcium-birnessite water-oxidation anodes: interactions of the catalyst with phosphate buffer anions
Interactions of the calcium-birnessite catalyst with phosphate buffer anions under water-oxidation conditions.
Nanoflower Ni(OH)2 grown in situ on Ni foam for high-performance supercapacitor electrode materials
Nanoflower Ni(OH)2 shows exceptionally high specific capacitance.
Thermal annealing effects on hydrothermally synthesized unsupported MoS2 for enhanced deoxygenation of propylguaiacol and kraft lignin
Annealed unsupported MoS2 catalysts by hydrothermal synthesis was studied for hydrodeoxygenation of propylguaiacol and hydrotreatment of kraft lignin.
Revisiting the promise of Bi-layer graded cathodes for improved Li-ion battery performance
Experimental results show that bi-layer graded cathodes exhibit higher discharge capacity with increasing C-rates compared to conventional monolayer electrodes, along with an increase in energy and power density.
A cobalt oxide–polypyrrole nanocomposite as an efficient and stable electrode material for electrocatalytic water oxidation
CoOx nanoparticles electrogenerated in a polypyrrole film as an efficient catalytic material for water oxidation to O2.
The role of hydrogen in heavy transport to operate within planetary boundaries
Fueling trucks with green hydrogen shows a favorable environmental life-cycle performance with respect to conventional diesel. Hydrogen as an alternative fuel would help society to safely operate within the absolute ecological limits of our planet.
High thermoelectric efficiency in electrodeposited silver selenide films: from Pourbaix diagram to a flexible thermoelectric module
High thermoelectric efficient is obtained in electrodeposited silver selenide films and a unileg flexible thermoelectric module is fabricated with a maximum power density of 138.6 mW m−2 at 19 K.
Synthesis of tailored oxymethylene ether (OME) fuels via transacetalization reactions
Oxymethylene ethers (OME) as environmentally benign fuels: progress in the design of compounds with tailored properties.
Pencil graphite rods decorated with nickel and nickel–iron as low-cost oxygen evolution reaction electrodes
Ni and NiFe decorated pencil graphite rods have good performance for the oxygen evolution reaction. Capacitance data describe the redox processes of nickel and show OER activation after Ni4+ formation.
Electrical conductivity of beech sawdust using graphite catalytic coating: unlocking the microwave-assisted thermolysis efficiency of lignocellulosic biomass
Graphite catalytic coating of the wood sawdust is a step-improvement toward higher efficiency of the microwave-assisted pyrolysis of lignocellulosic biomass.
Bubble-induced convection stabilizes the local pH during solar water splitting in neutral pH electrolytes
Multiphase multiphysics simulation demonstrates the presence of bubble-induced convection in regions close to the (photo)electrode surface, which suppresses the pH gradient and the resulting concentration overpotential.
Isomerization of glucose to fructose catalyzed by metal–organic frameworks
High catalytic activity is found to be due to the combination of a chromium catalyst with large pores (MIL-101(Cr)) with aprotic solvents (γ-valerolactone−10% H2O).
Hydrocarbon-based Pemion™ proton exchange membrane fuel cells with state-of-the-art performance
Our fully hydrocarbon fuel cells comprising Pemion™ as cation exchange material and PtCo as cathode catalyst exceed previous literature landmarks by a factor of nearly two, reaching the state-of-the-art performance.
Techno-economic and environmental assessment of BECCS in fuel generation for FT-fuel, bioSNG and OMEx
BECCS potential in fuel generation.
Hydrotreatment of lignin dimers over NiMoS-USY: effect of silica/alumina ratio
Catalyst with a suitable balance between acidity and pore accessibility needed for lignin hydrotreatment.
Energy production by salinity exchange in polyelectrolyte-coated electrodes. Temperature effects
Increasing the temperature of the fresh water produces a significant increase in power production by coated electrodes.
Zinc-electrocatalyzed hydrogenation of furfural in near-neutral electrolytes
Electrocatalytic hydrogenation of furfural to furfuryl alcohol (FAL) and 2-methylfuran (MF) using a zinc catalyst represents a greener pathway to produce value added chemicals as compared to the chemo-catalytic hydrogenation.
The environmental performance of a fossil-free ship propulsion system with onboard carbon capture – a life cycle assessment of the HyMethShip concept
Pre-combustion onboard carbon capture could be part of lowering the environmental impact from the shipping sector.
Chemical and electrochemical water oxidation mediated by bis(pyrazol-1-ylmethyl)pyridine-ligated Cu(I) complexes
The first CuI-complexes as homogeneous chemically and electrocatalytically driven WOCs operating at low and near-neutral pH.
Hydrogen from wood gasification with CCS – a techno-environmental analysis of production and use as transport fuel
Based on our integrated approach linking detailed process simulation with LCA, we are able to quantify benefits and potential trade-offs of clean hydrogen production in a consistent way.
Hydrogen evolution by polymer photocatalysts; a possible photocatalytic cycle
We propose, supported by ab initio calculations, a possible photocatalytic cycle for hydrogen evolution by a prototypical polymer photocatalyst, poly(p-phenylene), in the presence of a sacrificial electron donor.
Economic and life-cycle assessment of OME3–5 as transport fuel: a comparison of production pathways
OME3–5 as an alternative transport fuel: a comprehensive environmental and economic assessment of multiple production pathways.
A membrane-less electrolyzer with porous walls for high throughput and pure hydrogen production
The porous wall electrolyzer utilizes two porous walls between nucleation sites in order to achieve high hydrogen production rates with high purity.
Multifactor theoretical modeling of solar thermal fuels built on azobenzene and norbornadiene scaffolds
Photoisomerizing solar thermal fuels (STFs) offer a unique way of harnessing solar energy. Computational modeling toward improving STF performance requires a balanced treatment of ground- and excited-state properties.
Bio-oil and biochar production from halophyte biomass: effects of pre-treatment and temperature on Salicornia bigelovii pyrolysis
This study reveals the potential of Salicornia bigelovii for producing valuable products via pyrolysis. The presence of metals in the ash inhibited decarboxylation and dehydration during pyrolysis and increased the yield of bio-oil.
Modeling and design guidelines of high-temperature photoelectrochemical devices
A quasi-integrated high-temperature device composed of a high-temperature solar cell and a planar solid oxide electrolyzer for the generation of H2 and syngas was computationally evaluated. We assess feasibility and provide design guidelines for improved device performance.
About this collection
Please see below for recent Open Access papers published in Sustainable Energy & Fuels.