A simple passivation strategy using a common fluorinated salt is reported that seeks to enhance the photovoltaic performance and long-term stability of halide perovskite solar cells. Tetra-n-butyl ammonium hexa-fluorophosphate is used as a passivating agent to mitigate the surface defects on the perovskite and impede the ion mobility by virtue of H-bonding. In addition, the presence of fluorine atoms causes strong hydrophobicity, which in turn improves the moisture stability in perovskite solar cells. More details can be found in article number 2200211, Samrana Kazim and co-workers.

A new aromatic sodium salt, sodium (2,3,5,6-tetrafluorophenoxy) diethane sulfonate, bearing two sodium sulfonate groups is designed, synthesized, and characterized for application in water-based Na-ion batteries. The aqueous solution of the salt provides high ionic conductivity, suitable electrochemical stability and good cycling stability of Na-ion batteries, triggering new ideas for the development of water-based Na-ion battery electrolytes. More details can be found in article number 2201045, Stefano Passerini, Dominic Bresser, and co-workers.

The primary goal of this study is to enlighten readers on the current status of various battery thermal management techniques and highlight any novel approaches being used by the researchers to improve these techniques. The merits and demerits of these techniques along with future needs and opportunities in this field have also been discussed.

Herein, the research advances, application potential, and limitations of hydrate production methods, including four traditional and novel water flow erosion methods, are reviewed. The combination of water flow erosion and traditional hydrate production methods can be expected to achieve the promising long-term performance of hydrate production, which is theoretically and practically significant to study commercial hydrate production.

Through a variety of surface and bulk manufacturing processes, small molecules can be integrated and infiltrated into triboelectric layers. This thorough review outlines the background, selection criteria, and fabrication processes for small-molecule-based triboelectric nanogenerators, which are designed to increase the density of the triboelectric surface charge and effectively capture mechanical energy.

This review provides an overview of the challenges facing lithium–sulfur batteries. A comprehensive overview of lithium metal protection strategies is provided including electrolyte optimization, construction of artificial solid electrolyte layers, utilization of hosting materials, and design of separator, as well as a theoretical understanding and analysis of the underlying methods.

The preparation approaches, electrocatalytic activities, and improvement strategies of Ni-based electrocatalysts toward the hydrogen evolution reaction are comprehensively reviewed and corresponding challenges and perspectives are proposed.

The use of tetra-n-butyl ammonium hexafluorophosphate (TBAPF) as a passivating agent mitigates the surface defects and blocks ion mobility by virtue of H bonding, which in turn improves the photovoltaic performance and long-term stability.

A newly designed sodium salt for aqueous electrolytes provides high ionic conductivity and good cycling stability of Na-ion batteries.

Reversible conversion of ethanol to ethyl acetate is an attractive method for hydrogen storage. The reaction releases hydrogen and can be reversed catalytically for hydrogen uptake. The approach enables safe and dense storage utilizing a nonfossil carrier. This study provides insight into energy efficiency, ecobalance, and reaction thermodynamics of the process.

The diffusivities of electron and hole in MAPbI₃ film surface treated by tetra-ethyl ammonium iodine are promoted by 7 and 3 times, respectively, leading to aggravated charge separation.

The NiSn anode with interconnected ligament-channel networks and nanowalls is fabricated by two-step dealloying, involving corrosion of an Al_97.5Ni₂Sn_0.5 precursor in NaOH and subsequent etching of Ni in HNO₃. The NiSn-3h electrode presents excellent cycling stability with a reversible capacity of 213.9 mAh g⁻¹ at 1 A g⁻¹ after 1000 cycles.

Ir-doping makes KTaO₃ responsive to visible light when a suitable codopant is also doped. The doped KTaO₃ has arisen as promising photocatalysts driven by one-step photoexcitation for overall water splitting into H₂ and O₂ under visible light and simulated sunlight irradiation.

Machine learning (ML) models with AutoML frameworks such as General Automated Machine Learning Assistant (GAMA) will substantially accelerate the discovery of innovative organic semiconductors for optoelectrical devices.

The hybrid dielectric barrier discharge plasma-catalysis system using LaNiO₃ as catalyst is effective to activate CO₂ hydrogenation. The substitution of partial La with A' in LaNiO₃ promotes CO₂ conversion and C_2–4 selectivity. The smaller particles size of Ni⁰ and more oxygen vacancies in La_0.8Ca_0.2NiO_3±δ contribute to its superior performance.

Herein, a solid-state synthesis of LiFe _x Co _1−x PO₄@C (X: 0.15) is reported, which is used as a cathode for lithium-ion batteries. The use of lithium difluoro(oxalate)borate as an electrolyte additive takes part in the formation of a stable solid electrolyte interphase layer, hence improving the electrochemical stability.

The fabricated electrode cell of polyaniline/nano titanium dioxide/activated carbon (PANI/nTiO₂/AC) has a well-interconnected network and is thermally stable in aqueous H₂SO₄ electrolyte. The device can reach a specific capacitance ≈827 F g⁻¹ at 10 mV s⁻¹ since it provides large effective surface area for the electrolyte ions to penetrate inside the electrode material.

A stable asymmetric viologen is synthesized and a high cell voltage of 1.66 V is enabled when paired with 2Br⁻/Br₂ redox couple. The flow cell shows a stable performance of over 100 cycles with 99% coulombic efficiency.

A hybrid system consisting of plasma gasification, multistage flash desalination, and a small modular reactor power plant is proposed for power and water cogeneration. The energy efficiency of medical waste reaches 52.88%. In just 3.7 years, the initial investment is recouped, and in its 20 year lifetime, the system achieves a net present value of 430036.07 k$.

Lithium fluoride as an inorganic ionic dopant can control grain growth and get larger grain sizes. The doping of 2 mol% LiF considerably enhances the performance of all-inorganic perovskite solar cells, eliminates the hysteresis effect of the device, and the maximum power conversion efficiency of perovskite solar cells is raised to 17.02%.

A simple preannealing method is used to obtain CsPbIBr₂ perovskite films with uniform morphology, strong crystallinity, and free pinholes. The performance of the device can be effectively improved due to the reduction of defects and the optimization of the contact between functional layers. Therefore, a power conversion efficiency of 9.6% is obtained, which is nearly 100% improvement compared with that of the controlled device.

Herein, systematic analyses of the reaction rate distributions under various operating conditions are performed, in-depth understandings of the reaction rate distribution mechanisms are presented, and based on the results, a series of performance enhancement strategies is proposed and examined for the future design of microfluidic fuel cells under various application phenomena.

The problems of underdeveloped pores and high electrochemical impedance of oxygen reduction reaction (ORR) catalysts need to be urgently addressed. Heteroatoms F and N are doped on precursor Fe-zeolitic imidazolate framework (ZIF)-8 to increase the activity of Fe-ZIF-8-derived porous carbon materials and a noble metal-free high-activity ORR catalyst F–N/FeNC with 3D interconnected porous structure and high conductivity is successfully prepared.

Biological small molecules as additives are added to the CsPbIBr₂ films to passivate the defects. Compared with untreated CsPbIBr₂ perovskite solar cells, the introduction of adenosine can improve the crystallization of CsPbIBr₂ films, reduce the density of trap states, and enhance the light absorption, contributing to a champion efficiency of 10.24%.

This work aims at the sustainable recycling of spent 1,2-dimethyl-3-propylimidazolium chloroaluminate ionic liquid dual-ion batteries (DIBs). Recovery rates of valuable components of graphite, nickel foil, and ionic liquid reach 84–98%, whereas the ionic liquid only achieves 24%. Optimistically, the cost of an ionic liquid DIB using recycled components could be reduced by around 68%.

A series of D-π-A conjugated molecules based on electron-donor N-methyl-4,5-diazacarbazole with a variety of acceptor end caps is proposed using the density functional theory approach, with aiming to design novel organic materials in application in organic solar cells.

A multi-objective multidimensional optimization is implemented to obtain two optimum profiles. These profiles improve the overall efficiency by 8.3% and 7.1% under different operating conditions and incidence angles compared to a parabolic trough collector (PTC) with the same aperture area. The surface areas of these profiles are less than that of the PTC by 12.3% and 10.7%, respectively.

AuCu nanoparticles are fabricated by rapid thermal annealing of thin metallic films deposited on the nanostructured Ti platform. The different annealing times and heating rates have a significant impact on optical and photoelectrochemical properties. The fast-heated samples exhibit deeper midgap states, longer recombination rates, and higher carrier transport rates than the slow-heated electrodes.

A bifacial photovoltaic design for Cs₂AgBiBr₆ double perovskites is proposed, which shows improved efficiency in numerical simulations compared to a standard configuration under conditions of asymmetric diffusion lengths between electrons and holes. The effects of diffusion length, asymmetric ratio, and albedo factor are discussed, and an assessment is made of the limiting factors to obtaining a photovoltaic efficiency above 8%.

The amalgam process enables the formation of the surface layer mainly containing crystalline MgHg₂ on the magnesium electrode. Enhanced magnesium plating/stripping is observed with magnesium bis(trifluoromethanesulfonyl)imide/dimethoxyethane electrolyte. The amalgam surface layer undergoes chemical and morphological changes upon cycling.

The beneficial role of the salt concentration for lithium metal anodes is studied by a combination of several complementary techniques: the better reversibility of the Li⁺ solvation in the 5 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in 1,2-dioxolane/1,3-dimethoxyethane in comparison with the corresponding 1 M electrolyte as well as the different nature of the solid electrolyte interphase (SEI) leads to better performance during plating/stripping of lithium metal.

The insertion of Ni²⁺ into the crystal structure can affect the MnO bonding of MnO₂ and a strong interaction between Ni²⁺-doped MnO₂ and graphene nanocomposites can enhance the electrical conductivity and mitigate the volume expansion. The electrochemical performance of the composite materials is significantly improved.