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hydrogen; hydrogen fuels, etc ; energy; financial economics; management systems; transportation; Show all 6 Subjects
Abstract:
... Hydrogen is considered promising for the replacement of fossil fuels in integrated energy systems through hydrogen energy storage (HES). This paper considers multiple electricity-hydrogen integrated charging stations (EHI-CSs) as a unit consisting of photovoltaic systems and HES systems for charging plug-in electric vehicles and refilling hydrogen fuel vehicles. In the multiple EHI-CSs unit, a set ...
hydrogen; hydrogen production, etc ; activation energy; carbon; catalytic activity; electrolysis; industry; platinum; Show all 8 Subjects
Abstract:
... Alkaline water electrolysis is a safe and efficient method for producing hydrogen that is favored by the industry. At present, single-atom catalysts have attracted extensive attention due to their extremely high atom utilization. However, studies on the single-atom site catalytic mechanism of the Volmer step, the rate-determining step of the cathodic HER reaction, are lacking. Here, we used ZIF-8 ...
hydrogen; hydrogen production, etc ; disulfides; electron transfer; energy; irradiation; nanosheets; photocatalysis; solar energy; thermodynamics; Show all 10 Subjects
Abstract:
... Two-dimensional transition metal disulfides are excellent photocatalytic materials, which can be significantly improved by optimizing the composition and structure. Herein, Mn-doping NiS₂ of (Ni₁₋ₓMnₓ)-S with various Ni/Mn molar ratios is proposed via a facile and low-cost solvothermal method. The optimal (Ni₄/₆Mn₂/₆)-S exhibits pinecone-like morphology composed of tiny nanosheets with enlarged ac ...
hydrogen; hydrogen bonding, etc ; 4-hydroxybenzoic acid; food chemistry; molecular dynamics; protein structure; solvents; Show all 7 Subjects
Abstract:
... Previous work has suggested the ability of 4-hydroxybenzoic acid (4HBA) to bind to β -casein following ultra high temperature-like processing (UHT) in model aqueous systems. The present work confirmed directly, using MALDI-TOF-MS, the presence of covalently bound 4HBA following UHT-like treatment. In subsequent molecular dynamics simulations, the 3D structure of the β -casein molecule was modified ...
hydrogen; hydrogen production, etc ; carbon nitride; density functional theory; energy; graphene; photocatalysis; photocatalysts; polymerization; urea; wavelengths; Show all 11 Subjects
Abstract:
... As an efficient photocatalyst, graphitic carbon nitride (g-C₃N₄) has been widely used in the field of photocatalytic hydrogen production. However, how to prepare hydrogen efficiently and stably has become a challenge. Herein, we successfully realize metal-free edge modification with phenyl groups by one-step thermal polymerization of urea with 4-phenyl-3-thiosemicarbazide. Consequently, the optima ...
... Formate hydrogenlyase-1 (FHL-1) is a complex-I-like enzyme that is commonly found in gram-negative bacteria. The enzyme comprises a peripheral arm and a membrane arm but is not involved in quinone reduction. Instead, FHL-1 couples formate oxidation to the reduction of protons to molecular hydrogen (H₂). Escherichia coli produces FHL-1 under fermentative conditions where it serves to detoxify formi ...
hydrogen; hydrogen production, etc ; carbon nitride; catalytic activity; chemical reduction; electrochemistry; electrodes; graphene; graphene oxide; nanocomposites; nanosheets; oxidation; ruthenium; spectroscopy; Show all 14 Subjects
Abstract:
... Design and engineering of effective electrode catalysts represents a critical first step for hydrogen production by electrochemical water splitting. Nanocomposites based on ruthenium atomically dispersed within a carbon scaffold have emerged as viable candidates. In the present study, ruthenium metal centers are atomically embedded within graphitic carbon nitride/reduced graphene oxide nanosheets ...
... Improving detection sensitivity is still a major research emphasis for lateral flow immunoassay (LFIA). Increasing the binding efficiency and stability of the probe is an achievable and effective solution. In this work, we developed a highly sensitive lateral flow immunoassay for clenbuterol detection by using bismuth sulfide nanoparticle (Bi₂S₃) nanoparticles (NPs) as a novel marker. Here, Bi₂S₃ ...
... The impact of antibiotics on the environmental protection and sludge treatment fields has been widely studied. The recovery of hydrogen from waste activated sludge (WAS) has become an issue of great interest. Nevertheless, few studies have focused on the impact of antibiotics present in WAS on hydrogen production during dark anaerobic fermentation. To explore the mechanisms, sulfamethoxazole (SMX) ...
... Bioelectrochemical hydrogen production via microbial electrolysis cells (MECs) has attracted attention as the next generation of technology for the hydrogen economy. MECs work by electrochemically active bacteria reducing organic compounds at the anode. However, the hydrophobic nature of carbon-based anodes suppresses the release of the produced gas and water penetration, which significantly reduc ...
hydrogen, etc ; case studies; energy; normal distribution; uncertainty; Show all 5 Subjects
Abstract:
... Hydrogen management in an uncertain environment is an important aspect considering environmental and economic perspectives. In this paper, a novel framework and analysis for minimizing compression work in hydrogen allocation network (HAN) with parametric uncertainties are presented which includes stochastic and robust optimization approaches. The applicability of the proposed approaches is applied ...
hydrogen, etc ; bismuth; electric current; electrodes; oxygen; oxygen production; Show all 6 Subjects
Abstract:
... Bismuth vanadate (BVO) possesses great potential in photoelectrochemical water splitting application, but still suffers from low charge transfer efficiency as well as poor chemical stability. Herein, we have fabricated a thin NiFe-bimetal-organic framework (NiFe-MOF) layer grafting surface oxygen vacancies enriched BVO photoanode (NiFe-Oᵥₐc-BVO), which improves the charge separation and transfer e ...
hydrogen; hydrogen production, etc ; X-ray photoelectron spectroscopy; absorption; coordination polymers; electrochemistry; energy conversion; light; lighting; oxygen; photocatalysis; photocatalysts; photolysis; pollutants; tetracycline; zirconium; Show all 16 Subjects
Abstract:
... In the existing eco-crisis, designing and engineering an efficient as well as water stable photocatalyst for energy conversion and pollutant abatement remains crucial. In this regard, a mixed linker type zirconium metal organic framework (Zr-MOF) with terepthalic acid based ditopic linkers were utilized to design a single component photocatalyst through single step solvothermal method to utilize p ...
hydrogen, etc ; air quality; human health; nitrous acid; oxidation; China; Show all 6 Subjects
Abstract:
... Nitrous acid (HONO) is an important source of hydrogen oxides (HOx), which affects air quality, the atmospheric oxidation capacity, and human health. Here, we present ambient measurements of the HONO concentrations in Zhuhai, a coastal city in Southern China, from February 7 to March 15, 2021. The campaign was classified into two periods during (P1) and after (P2) the Spring Festival holidays. The ...
hydrogen; hydrogen bonding, etc ; disulfides; dough; gluten; hydrocolloids; hydrophobicity; models; noodles; polymers; starch granules; stress relaxation; viscoelasticity; water binding capacity; water distribution; wheat starch; Show all 16 Subjects
Abstract:
... The contribution of starch to dough behaviors has been largely overshadowed by the role of gluten, receiving much less attention in comparison. The impact of wheat starch granule size on the viscoelastic behaviors of low-moisture noodle dough and its underlying mechanism were investigated. Dough with a high ratio of B-type starch granules (BS) had higher viscoelastic moduli (G″ and G′) and percent ...
hydrogen bonding, etc ; food chemistry; mechanochemistry; polysaccharides; purification methods; solvents; Show all 6 Subjects
Abstract:
... A deep eutectic system (DESys) is formed when a hydrogen bond acceptor (HBA) is processed with polysaccharide (hydrogen bond donor, HBD) containing plant substance in water to dissolve, extract, and recover the polysaccharide directly, instead of using a traditional deep eutectic solvent (DES). The extraction efficiency is enhanced by the direct formation of the DESys, in a mechanochemical extract ...
hydrogen, etc ; catalysts; catalytic activity; coordination polymers; electrodes; nanosheets; oxidation; urea; Show all 8 Subjects
Abstract:
... NiOOH has been considered as the active center for urea oxidation reaction (UOR), but it remains challenging to synthesize high-performance NiOOH-based catalysts. Herein, we realize the synthesis of a high-performance NiOOH-based catalyst through in-situ transformation from the NiMn-based metal–organic framework to NiMnOOH. X-ray photoelectron spectroscopy characterization shows that the Ni³⁺/Ni²⁺ ...
hydrogen production, etc ; absorption; nanosheets; photocatalysis; photocatalysts; van der Waals forces; Show all 6 Subjects
Abstract:
... Currently, two-dimensional/two-dimensional (2D/2D) van der Waals heterojunctions, as novel and excellent candidates for photocatalysts, have attracted significant attention because of their fundamentally improved interfacial charge separation/transfer and massive reactive centers. Herein, novel 2D/2D Ta₃N₅-nanosheet/ReS₂-nanosheet van der Waals heterojunction photocatalysts are rationally designed ...
hydrogen, etc ; antagonism; antioxidant activity; bioavailability; food chemistry; heat treatment; hydrophobicity; Show all 7 Subjects
Abstract:
... The thermal-induced interaction between β-conglycinin (7S) and cyanidin-3-O-glucoside (C3G) on the bioaccessibility and antioxidant capacity of C3G was investigated. High ratio of 7S to C3G (1:100) led to a more ordered secondary structure of 7S. Thermal treatment promoted the formation of 7S-C3G complexes via hydrophobic and hydrogen bonds but did not induce the formation of 7S-C3G covalent produ ...
hydrogen, etc ; algorithms; economic independence; economic performance; energy; latitude; models; solar energy; Show all 8 Subjects
Abstract:
... The energy transition process fosters decentralized renewable energy generation and is characterized by an increased effort to achieve energy autarky. In this context, residential-size, photovoltaic-based multi-carrier energy systems using hydrogen as seasonal storage are analyzed as a possible solution to gain energy autarky. A high temporal (15 min) and long-term (10 a) power flow simulation app ...