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Themed collection Recent Open Access Articles

46 items
Open Access Communication

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.

Graphical abstract: Separating bulk and surface processes in NiOx electrocatalysts for water oxidation
From the themed collection: Recent Open Access Articles
Open Access Communication

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.

Graphical abstract: Parameter optimisation for electrochemically activated MoTe2
From the themed collection: Recent Open Access Articles
Open Access Communication

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.

Graphical abstract: Increased hydrogen partial pressure suppresses and reverses hydrogen evolution during Pd catalysed electrolysis of CO2
Open Access Communication

Polymer reinforced carbon fiber interfaces for high energy density structural lithium-ion batteries

Interface engineering enables a practical multifunctional advantage in a structural battery.

Graphical abstract: Polymer reinforced carbon fiber interfaces for high energy density structural lithium-ion batteries
From the themed collection: Recent Open Access Articles
Open Access Communication

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.

Graphical abstract: Hidden figures of photo-charging: a thermo-electrochemical approach for a solar-rechargeable redox flow cell system
From the themed collection: Recent Open Access Articles
Open Access Paper

Benzothiadiazole-based photosensitizers for efficient and stable dye-sensitized solar cells and 8.7% efficiency semi-transparent mini-modules

New benzothiadiazole-based dyes are synthesized, characterized and used for the fabrication of robust and efficient solar cells and mini-modules.

Graphical abstract: Benzothiadiazole-based photosensitizers for efficient and stable dye-sensitized solar cells and 8.7% efficiency semi-transparent mini-modules
Open Access Paper

Boosting the oxygen evolution activity in non-stoichiometric praseodymium ferrite-based perovskites by A site substitution for alkaline electrolyser anodes

More abundant and economically friendly Sr-doped praseodymium ferrites show an increase in the electrocatalytic activity as the amount of Sr dopant increases that is linked to the increasing concentration of oxygen vacancy.

Graphical abstract: Boosting the oxygen evolution activity in non-stoichiometric praseodymium ferrite-based perovskites by A site substitution for alkaline electrolyser anodes
Open Access Paper

Mild thermolytic solvolysis of technical lignins in polar organic solvents to a crude lignin oil

Crude lignin oil, comprising solvent-soluble lignin oligomers, as a platform product for lignin valorization.

Graphical abstract: Mild thermolytic solvolysis of technical lignins in polar organic solvents to a crude lignin oil
From the themed collection: Recent Open Access Articles
Open Access Paper

Perceiving the temperature coefficients of carbon-based perovskite solar cells

Dual temperature coefficients characteristics are introduced for ambient carbon-based perovskite solar cell in the temperature window of 5 °C to 75 °C, utilising crystal growth via solvent exchange preparation method.

Graphical abstract: Perceiving the temperature coefficients of carbon-based perovskite solar cells
From the themed collection: Recent Open Access Articles
Open Access Paper

The climatic response of thermally integrated photovoltaic–electrolysis water splitting using Si and CIGS combined with acidic and alkaline electrolysis

Real data modelling of the hydrogen yield using different PV and electrolyzer combinations with hourly climatic data for mid-European climate.

Graphical abstract: The climatic response of thermally integrated photovoltaic–electrolysis water splitting using Si and CIGS combined with acidic and alkaline electrolysis
Open Access Paper

Hydrogen via reforming aqueous ammonia and biomethane co-products of wastewater treatment: environmental and economic sustainability

Wastewater treatment plants can be centres of green H2 production via the novel method presented for co-reforming of bio-ammonia and bio-methane.

Graphical abstract: Hydrogen via reforming aqueous ammonia and biomethane co-products of wastewater treatment: environmental and economic sustainability
From the themed collection: Recent Open Access Articles
Open Access Paper

Effect of extended short-circuiting in proton exchange membrane fuel cells

The detrimental effect of extended short-circuiting in the degradation of catalyst layer and performance of proton exchange membrane fuel cells.

Graphical abstract: Effect of extended short-circuiting in proton exchange membrane fuel cells
From the themed collection: Recent Open Access Articles
Open Access Paper

Increasing dimethyl ether production from biomass-derived syngas via sorption enhanced dimethyl ether synthesis

Sorption Enhanced DME Synthesis (SEDMES) is a feasible approach to increase DME production from CO2-rich syngas.

Graphical abstract: Increasing dimethyl ether production from biomass-derived syngas via sorption enhanced dimethyl ether synthesis
From the themed collection: Recent Open Access Articles
Open Access Paper

15% enhancement of the photocurrent at the maximum power point of a thin film solar cell

A modulation doped region placed away from the charge generation region reduces recombination loss by enhancing the charge extraction.

Graphical abstract: 15% enhancement of the photocurrent at the maximum power point of a thin film solar cell
From the themed collection: Recent Open Access Articles
Open Access Paper

New insights into phenazine-based organic redox flow batteries by using high-throughput DFT modelling

DFT calculations reveal interesting structure–property relationships of the redox potentials of phenazines in non-aqueous media.

Graphical abstract: New insights into phenazine-based organic redox flow batteries by using high-throughput DFT modelling
From the themed collection: Recent Open Access Articles
Open Access Paper

Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil

The formation, growth and transformation of carbon residue (coke) deposited on the catalyst during the raw bio-oil hydrodeoxygenation has been studied.

Graphical abstract: Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil
Open Access Paper

Effect of partial pressure on product selectivity in Cu-catalyzed electrochemical reduction of CO2

Manipulation of the CO2 partial pressure strongly affects the faradiac efficiency in electrochemical reduction of CO2 using oxide-derived electrodeposited copper surfaces.

Graphical abstract: Effect of partial pressure on product selectivity in Cu-catalyzed electrochemical reduction of CO2
From the themed collection: Recent Open Access Articles
Open Access Paper

In situ fabrication of dendritic tin-based carbon nanostructures for hydrogen evolution reaction

In this work, dendritic tin-based carbon nanostructures with different morphologies were synthesized by a facile two-step carbonization and chemical vapor deposition method and were then evaluated for their performance in hydrogen evolution reaction.

Graphical abstract: In situ fabrication of dendritic tin-based carbon nanostructures for hydrogen evolution reaction
From the themed collection: Recent Open Access Articles
Open Access Paper

Effect of the ambient conditions on the operation of a large-area integrated photovoltaic-electrolyser

Temperature affects the efficiency of an integrated photovoltaic-electrolyser significantly more than the photovoltaic cells alone.

Graphical abstract: Effect of the ambient conditions on the operation of a large-area integrated photovoltaic-electrolyser
From the themed collection: Recent Open Access Articles
Open Access Paper

Rock ‘n’ use of CO2: carbon footprint of carbon capture and utilization by mineralization

Our LCA-based assessment showed that all considered CCU technologies for mineralization can reduce climate impacts over the entire life cycle due to the permanent storage of CO2 and the credit for substituting conventional products.

Graphical abstract: Rock ‘n’ use of CO2: carbon footprint of carbon capture and utilization by mineralization
From the themed collection: Recent Open Access Articles
Open Access Paper

Production of fatty alcohols from non-edible oils by enzymatic cascade reactions

A biocatalytic cascade transforming castor oil into (R,Z)-octadec-9-en-7-ol is presented by combining a lipase catalysed hydrolysis of castor oil into ricinoleic acid followed by a photoenzymatic decarboxylation into (R,Z)-octadec-9-en-7-ol.

Graphical abstract: Production of fatty alcohols from non-edible oils by enzymatic cascade reactions
From the themed collection: Recent Open Access Articles
Open Access Paper

Charge transfer characteristics of fullerene-free polymer solar cells via multi-state electronic coupling treatment

Dispersion-corrected optimally tuned long-range corrected functional provides constant electronic couplings for non-fullerene polymer solar cell systems regardless of the number of the excited states included in the calculations.

Graphical abstract: Charge transfer characteristics of fullerene-free polymer solar cells via multi-state electronic coupling treatment
From the themed collection: Recent Open Access Articles
Open Access Paper

High-energy and high-power Zn–Ni flow batteries with semi-solid electrodes

Careful rheological design and electrochemical optimization of conductive ZnO and Ni(OH)2 active semi-solid flowable electrodes is essential to achieve a high-energy and high-power Zn–Ni flow battery.

Graphical abstract: High-energy and high-power Zn–Ni flow batteries with semi-solid electrodes
From the themed collection: Recent Open Access Articles
Open Access Paper

Enhanced methane producing microbial electrolysis cells for wastewater treatment using poly(neutral red) and chitosan modified electrodes

Microbial electrolysis cells equipped with modified carbon felt electrodes showed enhanced long-term performance of organic degradation and CO2 conversion to CH4.

Graphical abstract: Enhanced methane producing microbial electrolysis cells for wastewater treatment using poly(neutral red) and chitosan modified electrodes
From the themed collection: Recent Open Access Articles
Open Access Paper

Big problem, little answer: overcoming bed agglomeration and reactor slagging during the gasification of barley straw under continuous operation

Leaching barley straw has been found to eliminate reactor slagging and fluidised bed agglomeration under continuous gasification.

Graphical abstract: Big problem, little answer: overcoming bed agglomeration and reactor slagging during the gasification of barley straw under continuous operation
From the themed collection: Recent Open Access Articles
Open Access Paper

A fundamental study of the thermoelectrochemistry of ferricyanide/ferrocyanide: cation, concentration, ratio, and heterogeneous and homogeneous electrocatalysis effects in thermogalvanic cells

Thermocells can sustainably generate electricity from waste heat temperature gradients. This study investigates numerous fundamental aspects of thermocells, and how to explain and model such aspects.

Graphical abstract: A fundamental study of the thermoelectrochemistry of ferricyanide/ferrocyanide: cation, concentration, ratio, and heterogeneous and homogeneous electrocatalysis effects in thermogalvanic cells
Open Access Paper

From non-innocent to guilty: on the role of redox-active ligands in the electro-assisted reduction of CO2 mediated by a cobalt(II)-polypyridyl complex

The ability of a polypyridyl cobalt(II) complex containing a redox-active tetradentate ligand to assist the electroreduction of CO2 has been investigated in DMF.

Graphical abstract: From non-innocent to guilty: on the role of redox-active ligands in the electro-assisted reduction of CO2 mediated by a cobalt(ii)-polypyridyl complex
From the themed collection: Recent Open Access Articles
Open Access Paper

An air CO2 capture system based on the passive carbonation of large Ca(OH)2 structures

Passive direct air capture by the carbonation of large scale Ca(OH)2 porous structures that can be regenerated by means of well-tried technologies, while producing a pure CO2 stream ready for storage.

Graphical abstract: An air CO2 capture system based on the passive carbonation of large Ca(OH)2 structures
From the themed collection: Recent Open Access Articles
Open Access Paper

Industrial feasibility of anodic hydrogen peroxide production through photoelectrochemical water splitting: a techno-economic analysis

Techno-economic analysis predicts economic viability of PEC generated H2 with concomitant anodic H2O2 production.

Graphical abstract: Industrial feasibility of anodic hydrogen peroxide production through photoelectrochemical water splitting: a techno-economic analysis
From the themed collection: Recent Open Access Articles
Open Access Paper

A life cycle assessment of greenhouse gas emissions from direct air capture and Fischer–Tropsch fuel production

Direct air capture chemically separates CO2 from ambient air for synthetic fuel production with renewable H2.

Graphical abstract: A life cycle assessment of greenhouse gas emissions from direct air capture and Fischer–Tropsch fuel production
From the themed collection: Recent Open Access Articles
Open Access Paper

Mitigating voltage losses in photoelectrochemical cell scale-up

Two-dimensional simulation quantifies the different losses in scaling-up photoelectrochemical cell, which can be minimized to ∼50 mV.

Graphical abstract: Mitigating voltage losses in photoelectrochemical cell scale-up
Open Access Paper

Hydrogen production from natural gas and biomethane with carbon capture and storage – A techno-environmental analysis

We quantify the technical and environmental performance of clean hydrogen production (with CCS) by linking detailed process simulation with LCA.

Graphical abstract: Hydrogen production from natural gas and biomethane with carbon capture and storage – A techno-environmental analysis
From the themed collection: Recent Open Access Articles
Open Access Paper

Bipolar-interface fuel cells – an underestimated membrane electrode assembly concept for PGM-free ORR catalysts

We present the first combination of a bipolar interface fuel cell with a commercial Fe–N/C catalyst as an alkaline cathode and a PGM-based, acidic anode, both separated by a proton exchange membrane (PEM).

Graphical abstract: Bipolar-interface fuel cells – an underestimated membrane electrode assembly concept for PGM-free ORR catalysts
From the themed collection: Recent Open Access Articles
Open Access Paper

Two-dimensional boron monochalcogenide monolayer for thermoelectric material

We have investigated the electronic structure, vibrational and transport properties of boron chalcogenide BX (X = S, Se, Te) materials, which may have potential applications in high-performance thermoelectric devices.

Graphical abstract: Two-dimensional boron monochalcogenide monolayer for thermoelectric material
From the themed collection: Recent Open Access Articles
Open Access Paper

Thiazolo[5,4-d]thiazole-based organic sensitizers with improved spectral properties for application in greenhouse-integrated dye-sensitized solar cells

Semitransparent dye-sensitized solar cells (DSSCs) for greenhouse integration were manufactured by using especially designed organic dyes featuring different heterocyclic moieties integrated into a thiazolo[5,4-d]thiazole-molecular scaffold.

Graphical abstract: Thiazolo[5,4-d]thiazole-based organic sensitizers with improved spectral properties for application in greenhouse-integrated dye-sensitized solar cells
From the themed collection: Recent Open Access Articles
Open Access Paper

Fuel cell evaluation of anion exchange membranes based on poly(phenylene oxide) with different cationic group placement

Comparison of four poly(phenylene oxide) membranes in an AEMFC and the correlation between performance, ionic conductivity and water flux properties.

Graphical abstract: Fuel cell evaluation of anion exchange membranes based on poly(phenylene oxide) with different cationic group placement
From the themed collection: Recent Open Access Articles
Open Access Paper

Life cycle assessment of plasma-assisted ethylene production from rich-in-methane gas streams

Herein, the sustainability of plasma-assisted processes for ethylene production from rich-in-methane gas streams namely, natural and shale gas, is investigated by performing life cycle assessment (LCA).

Graphical abstract: Life cycle assessment of plasma-assisted ethylene production from rich-in-methane gas streams
From the themed collection: Recent Open Access Articles
Open Access Paper

Co-production of pure hydrogen, carbon dioxide and nitrogen in a 10 kW fixed-bed chemical looping system

Fixed-bed chemical looping for the generation of high purity hydrogen with sequestration of pure carbon dioxide and nitrogen.

Graphical abstract: Co-production of pure hydrogen, carbon dioxide and nitrogen in a 10 kW fixed-bed chemical looping system
From the themed collection: Recent Open Access Articles
Open Access Paper

Pyroelectric power generation from the waste heat of automotive exhaust gas

A waste heat recovery system is investigated basically. Original electro-thermodynamic cycle and novel system are expected to be viable in any heat sources with time dependent temperature changes instead of the spatial temperature gradient.

Graphical abstract: Pyroelectric power generation from the waste heat of automotive exhaust gas
From the themed collection: Recent Open Access Articles
Open Access Paper

Stabilization of Li–S batteries with a lean electrolyte via ion-exchange trapping of lithium polysulfides using a cationic, polybenzimidazolium binder

An active cationic polymer binder absorbs dissolved polysulfides for suppressing the shuttle effect and simultaneously forms a Li+ conducting phase, allowing Li–S cells to work at a lean electrolyte content.

Graphical abstract: Stabilization of Li–S batteries with a lean electrolyte via ion-exchange trapping of lithium polysulfides using a cationic, polybenzimidazolium binder
From the themed collection: Recent Open Access Articles
Open Access Paper

Adaptation of Cu(In, Ga)Se2 photovoltaics for full unbiased photocharge of integrated solar vanadium redox flow batteries

Adapted CIGS was integrated into vanadium redox flow batteries showing that only photovoltaics matching cell requirements achieve full unbiased photo-charge.

Graphical abstract: Adaptation of Cu(In, Ga)Se2 photovoltaics for full unbiased photocharge of integrated solar vanadium redox flow batteries
From the themed collection: Recent Open Access Articles
Open Access Paper

Roadmap for cost-effective, commercially-viable perovskite silicon tandems for the current and future PV market

A techno-economic analysis of perovskite-silicon tandem solar modules is presented, outlining the most viable pathway for designing cost-effective, commercially viable tandems.

Graphical abstract: Roadmap for cost-effective, commercially-viable perovskite silicon tandems for the current and future PV market
From the themed collection: Recent Open Access Articles
Open Access Paper

Strategies for the deposition of LaFeO3 photocathodes: improving the photocurrent with a polymer template

LaFeO3 photocathodes with high porosity and uniformity are developed through polymer templating with Triton X-100, improving charge separation and boosting photocurrents achieved.

Graphical abstract: Strategies for the deposition of LaFeO3 photocathodes: improving the photocurrent with a polymer template
From the themed collection: Recent Open Access Articles
Open Access Paper

Star-shaped triarylamine-based hole-transport materials in perovskite solar cells

Two star-shaped HTMs with excellent optoelectronic, electrochemical, charge-transport and thermal properties show efficiencies of 13.32% and 11.52% in perovskite solar cells.

Graphical abstract: Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
From the themed collection: Recent Open Access Articles
Open Access Paper

Increasing efficiency of perovskite solar cells using low concentrating photovoltaic systems

Perovskite solar cell (PSC) technology is the flag bearer for the future of photovoltaics allowing unlimited possibilities for its application.

Graphical abstract: Increasing efficiency of perovskite solar cells using low concentrating photovoltaic systems
From the themed collection: Recent Open Access Articles
Open Access Paper

Development of an effective bi-functional Ni–CaO catalyst-sorbent for the sorption-enhanced water gas shift reaction through structural optimization and the controlled deposition of a stabilizer by atomic layer deposition

Bi-functional Ni–hollow CaO stabilized by ALD-grown Al2O3 overcoat for sorption-enhanced water-gas shift reaction producing high purity hydrogen.

Graphical abstract: Development of an effective bi-functional Ni–CaO catalyst-sorbent for the sorption-enhanced water gas shift reaction through structural optimization and the controlled deposition of a stabilizer by atomic layer deposition
From the themed collection: Recent Open Access Articles
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