2026 July - 91 articles
This review examines the state-of-the-art in catalytic oxidative dehydrogenation of propane and butane to olefins under oxygen-free gas-phase conditions (FOx–PCODH and FOx–BCODH). First, it is compared with traditional methods for C3&ndas...
Low-cost, efficient, and durable electrocatalysts for two-electron oxygen reduction (2e− ORR) to synthesize hydrogen peroxide (H2O2) are essential for sustainable chemical manufacturing. Herein, we report a sustainable route to prepare activate...
Accurate prediction of photocatalytic degradation in TiO2 reactors remains challenging due to the time-consuming, labor-intensive, and costly nature of experimental investigations, as well as the limited ability of conventional models. The degradatio...
Photocatalytic disinfection is a low-cost, efficient, and sustainable technology, particularly suitable for underdeveloped regions. However, its practical application is limited by severe electron-hole recombination, which reduces photocatalytic effi...
The photocatalytic degradation of the 2,5-diphenyl-1,3-oxazole (PPO) and 2-(4-biphenyl)-5-phenyl-1,3,4-oxadiazole (PBD), which are laser dyes and scintillator compounds, was investigated under ultraviolet (UV) light irradiation using pure and rare-ea...
Catalyst deactivation shifts the optimal operating region of exothermic fixed-bed reactors, yet most reactor digital twins focus on monitoring rather than catalyst-state-aware operating decisions. This work presents a simulation-based self-optimizing...
The massive anthropogenic discharge of nitrate into aquatic environments disrupts the nitrogen cycle, posing threats to both ecosystems and human health. Electrocatalytic nitrate reduction to ammonia (ENRA) enables both nitrate removal and the produc...
Catalyst activity loss reduces both the performance and operating flexibility of industrial sulfur dioxide converters, yet its consequences are rarely assessed beyond conversion declines. This work develops an activity-loss vulnerability framework fo...
The presence of toxic, corrosive, and environmentally harmful sulfur compounds within natural gas streams necessitates their removal to ensure compliance with fuel quality standards and regulations. Previous studies into MMOs (mixed metal-oxides) as...
Natural bentonite, dominated by montmorillonite-type layered aluminosilicates, is increasingly considered as an inexpensive and environmentally acceptable support or catalyst for the thermochemical conversion of waste carbon streams. Its relevance to...
The development of cost-effective, efficient, and visible-light-responsive photocatalysts for hydrogen evolution is pivotal for addressing global energy shortages and environmental degradation. In this context, non-precious metal cocatalysts have gar...
Material screening, including oxide catalyst discovery, remains constrained by costly synthesis-and-test cycles, making sample-efficient experiment selection a central challenge. Active learning can accelerate this process, but standard acquisition r...
Co–Mg–Fe oxide systems are promising candidates for thermally stable deep oxidation catalysts because they potentially combine redox-active cobalt and iron components with stabilizing magnesium-containing phases. In this work, phase forma...
Cu-Ni co-deposit electrodes were prepared and tested in an undivided cell for the electrochemical removal of nitrate from aqueous solutions. Pulsed electrodeposition (PED) under a dynamic hydrogen bubble template and direct electrodeposition (DE) tec...
The electrocatalytic reduction of CO2 (CO2RR) into value-added chemicals represents a promising strategy for achieving carbon-neutral energy conversion. However, it is fundamentally limited by sluggish reaction kinetics, insufficient product selectiv...
This review is devoted to the occurrence, extraction, structural characterization and catalytic applications of vanadyl porphyrins present in heavy crude oils and petroleum residues. Vanadyl porphyrins represent the major vanadium-containing compound...
Gut microbial oxalate degradation has emerged as a potential strategy for reducing hyperoxaluria and calcium oxalate kidney stone risk. Among microbial oxalate-degrading systems, the OxlT–Frc–Oxc pathway is one of the best-characterized r...
Aspartase from Escherichia coli (AspA) catalyzes the direct conversion of acrylic acid to β-alanine; however, its substrate specificity and low catalytic efficiency limit its broader application. We engineered an AspA mutant capable of efficient...
Proteases are among the most commercially important industrial enzymes, yet their large-scale production is often limited by complex and costly downstream processing. In this study, an integrated bioprocess was developed for the production, in situ r...
The reactivity of a range of cyclic monoterpenes in the presence of a crude peroxygenase-containing preparation from oat flour as a biocatalyst and tert-butyl hydroperoxide as an oxidant was evaluated, with the aim of highlighting the chemo- and ster...
Industrial wastewater containing refractory organic compounds, heavy metals, and emerging contaminants poses a significant challenge to conventional treatment methods due to their high chemical stability and toxicity. This review systematically summa...
The photoreduction of CO2 is a growingly interesting research topic due to the intriguing possibility of producing solar fuels from a concerning pollutant. TiO2 photocatalysts were the first materials used for this application, but since then, variou...
The insufficient durability of electrocatalysts constitutes a critical bottleneck for electrocatalytic nitrate-to-ammonium reduction (NRA), and most existing stabilization strategies are implemented under harsh modification conditions. Herein, a sequ...
Traditional enzyme immobilization strategies often rely on chemical crosslinkers or solid carriers, thereby increasing processing complexity and potentially compromising catalytic efficiency. Here, we present a carrier-free approach for generating st...
Pyridoxal 5′-phosphate (PLP), the catalytically active form of vitamin B6, is an enabling cofactor for synthetic biocatalysis, but PLP production remains difficult to compare across chemical, microbial, and cell-free routes. This review reframe...
Ammonia-selective catalytic reduction (NH3-SCR) is a well-established and widely applied technology for the abatement of nitrogen oxides. However, traditional NH3-SCR catalysts still suffer from a limited effective active temperature window, insuffic...
Microwave-assisted enzymatic ring-opening polymerization (eROP) has emerged as a promising green approach for the synthesis of biomedical polymers with potential applications in drug delivery systems and implantable biomaterials. This review provides...
The upgrading of microalgal biocrude produced via HTL is essential for the production of refinery-compatible drop-in fuels. Despite the high energy density of HTL biocrude, its elevated nitrogen and oxygen content originating from protein and lipid f...
This study numerically investigates the combustion characteristics of four catalytic micro-burners with different channel geometries: a straight-channel burner (Burner 1), a symmetric U-bend burner (Burner 2), and two asymmetric U-bend burners with e...
Industrial wastewater containing synthetic dyes is difficult to treat because many dyes are chemically stable, highly colored, and resistant to natural degradation. In this study, a Ag2CO3/montmorillonite (Ag2CO3/MMT) composite photocatalyst was synt...
4-Hydroxycyclopent-2-enone (HCP), a chemical substance with a unique molecular structure and distinct physical properties, is an important intermediate for the synthesis of natural products, chemicals, and liquid fuels, demonstrating exceptionally hi...
The oxygen reduction reaction (ORR) is the cathode cornerstone of fuel cells and metal-air batteries. Its inherent spin mismatch between triplet O2 and singlet products causes sluggish kinetics that conventional catalyst designs cannot fully overcome...
Mononuclear nonheme iron(IV)–oxo species supported by mixed nitrogen–sulfur (N/S) ligands remain scarce, despite the prevalence of sulfur donors in biological iron sites and their expected impact on ferryl reactivity and catalyst design....
In this study, the influence of nanostructure and morphology was used as a comparative strategy to investigate the material’s performance. For this purpose, two distinct morphologies, one of which is novel for iron tungstate (nanoplatelets) and...
Odorous gases such as hydrogen sulfide (H2S) and dimethyl disulfide (DMDS) pose significant risks to human health and environmental quality. Non-thermal plasma (NTP) technology offers an effective alternative for odor treatment, but challenges remain...
Non-stoichiometric tungsten carbide WC1−x layers (~20 mm thickness) were used as a reductant substrate to deposit palladium nanoparticles under open-circuit conditions in aqueous solutions. The prepared Pd(WC1−x)/TEG electrodes (TEG&mdash...
Selective catalytic oxidation of ammonia (NH3-SCO) is a promising technology for ammonia abatement. Cu/CeO2 catalysts have attracted extensive attention because of their strong metal–support interaction and favorable redox properties. However,...
The activity and stability of Ni-based catalysts for CO2 methanation strongly depend on the morphology and chemical composition of the support. In this work, Ni catalysts with four oxidic supports (SiO2, Al2O3, CeO2, ZrO2) were synthesized via a one-...
The development of highly efficient and low-cost electrocatalysts for the urea oxidation reaction (UOR) is crucial for advancing urea fuel cell technologies. In this work, MgZnFe-layered double hydroxide (LDH), LDH/BDC-MOF, and LDH/1,2,4-triazole (LD...
It is known that when an n-type semiconductor and a p-type semiconductor (i.e., a p–n junction) are connected, an intrinsic electric field is formed due to the diffusion motion of majority carriers. The direction of this intrinsic electric fiel...
Geometric asymmetry in recirculating micro-burners remains underexplored in catalytic micro-combustion research, despite its potential to significantly influence ignition behavior. This numerical study investigates the ignition and combustion charact...
To address the insufficient visible-light absorption of Bi4O5Br2 photocatalysts, first-principles density functional theory (DFT) calculations were employed to systematically investigate the effects of I doping at different concentrations (12.5%, 25%...
This manuscript proposes to valorize the macauba endocarp (E) wastes from the macauba processing by a pyrolytic + hydrothermal process to produce activated carbon (ACE), followed by chemical treatment with H2O2 (ACEA) and HNO3 (ACEB). Elemental analy...
Developing efficient and stable oxygen evolution reaction (OER) electrocatalysts is crucial to the practical application of water electrolysis for hydrogen production. Herein, a tubular array of a mesoporous NiMoO4@NiFeS heterostructure was anchored...
Oxygen vacancies are a key factor determining the efficiency of the CO2 hydrogenation reaction and play a crucial role in CO2 adsorption and activation. However, effectively regulating the concentration of oxygen vacancies to enhance the performance...
Methane partial oxidation (POM) offers a promising pathway for syngas production, but achieving optimal catalyst performance requires precise control of promoter loading. We systematically investigated cerium (Ce) promotion on nickel-based catalysts...
Phenolic compounds represent a class of highly toxic, bioaccumulative, and persistent pollutants in industrial wastewater. Conventional treatment methods often fail to degrade these recalcitrant pollutants efficiently. Advanced oxidation processes, p...
Fe3O4 magnetic nanoparticles, as typical magnetic nanomaterials, can be functionalized and self-assembled into one-dimensional and two-dimensional structures to obtain new physicochemical properties. However, there are few studies on preparing stable...
Pure ZnO and ZnO/Gd2O3 (1 and 2 mol %) nanoneedles were synthesized via a sonochemical route and evaluated as catalytic materials for the degradation of paracetamol using glass and PTFE (Teflon) stirring rods. The morphology and elemental composition...
In this study, an ecofriendly microfluidic microbial biocathode electrolysis cell is developed for hydrogen production. Low-cost microbial catalysts are employed on single-walled carbon nanotube cathodes instead of noble metal (platinum) catalysts. T...
of 2
