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有关气凝胶和石墨烯的最新出版物和专利

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这是我们最新精选的有关气凝胶和气石墨烯的全球出版物和专利，涉及许多科学在线期刊，分类集中于气凝胶、气石墨烯、溶胶-凝胶工艺、超临界干燥、石墨烯气凝胶、冻干、还原氧化石墨烯气凝胶、rGO 气凝胶、冷冻干燥、孔径分布、超临界干燥、氧化石墨烯气凝胶（GOA）和可调孔隙率。

A Review on Laser-Induced Graphene-Based Electrocatalysts for the Oxygen Reduction Reaction in Electrochemical Energy Storage and Conversion

Published on 2025-07-10 by Giulia Massaglia, Marzia Quaglio @MDPI

Abstract: The increasing demand for efficient and sustainable energy conversion technologies has driven extensive research into alternative electrocatalysts for the oxygen reduction reaction (ORR). Platinum-based catalysts, while highly efficient, suffer from high costs, scarcity, and long-term instability Laser-Induced Graphene (LIG) has recently attracted considerable interest as an effective metal-free electrocatalyst for oxygen reduction reaction (ORR), owing to its remarkable electrical conductivity,[...]

Our summary: A review on the synthesis, properties, and performance of Laser-Induced Graphene-based electrocatalysts for the oxygen reduction reaction. Discussion on heteroatom doping and functionalization techniques. Highlighting challenges and future perspectives for LIG-based ORR catalysts.

Laser-Induced Graphene, Electrocatalysts, Oxygen Reduction Reaction, Energy Storage

Publication

Study on the Adsorption Behavior of a Cellulose Nanofibril/Tannic Acid/Polyvinyl Alcohol Aerogel for Cu(II), Cd(II), and Pb(II) Heavy Metal Ions

Published on 2025-07-09 by Xuejin Zhang, Yulong Tian, Huanhuan Chen, Ying Liu, Shuaichuang Han, Minmin Chang, Jingshun Zhuang, Qingzhi Ma @MDPI

Abstract: Nanocellulose-based composite aerogels have the advantages of high porosity, biodegradability, and biocompatibility, with wide applications in many fields, such as adsorption, separation, energy storage, and heat insulation. In this study, a nanocellulose-based composite aerogel (NCA) was prepared using the one-pot method with cellulose nanofibrils (CNFs), tannic acid (TA), and polyvinyl alcohol (PVA) as raw materials. The adsorption behaviors of Pb2+, Cd2+, and Cu2+ were also studied. FT-IR ana[...]

Our summary: Study on the adsorption behavior of a nanocellulose-based composite aerogel for Cu(II), Cd(II), and Pb(II) heavy metal ions. High porosity, biodegradability, and biocompatibility make nanocellulose-based composite aerogels versatile in various applications. The study prepared a nanocellulose-based composite aerogel using cellulose nanofibrils, tannic acid, and polyvinyl alcohol, showing excellent adsorption capacity for heavy metal ions.

A Deep Simulation Study of Hydraulic Fracture Cleanup in Heterogeneous Tight Gas Reservoirs

Published on 2025-07-09 by Hamid Reza Nasriani, Mahmoud Jamiolahmady @MDPI

Abstract: Ultra-tight gas reservoirs present severe flow constraints due to complex interactions between rock&ndash;fluid properties and hydraulic fracturing. This study investigates the impact of unconventional capillary pressure correlations and permeability jail effects on post-fracture cleanup in multiple-fractured horizontal wells (MFHWs) using high-resolution numerical simulations. A novel modelling approach is applied to represent both weak and strong permeability jail phenomena in heteroge[...]

Our summary: A study on hydraulic fracture cleanup in tight gas reservoirs using high-resolution numerical simulations investigates the impact of unconventional capillary pressure correlations and permeability jail effects. The study reveals that strong jail zones hinder fracture fluid recovery, while weak jail configurations interact with heterogeneity to produce non-linear cleanup trends. Integrating unconventional Kr and Pc behavior in hydraulic fracturing design is crucial for optimizing flowback and long-term gas recovery.

hydraulic fracturing, tight gas reservoirs, numerical simulations, permeability jail

Publication

Impact of Different Dehydration Methods on Drying Efficiency, Nutritional and Physico-Chemical Quality of Strawberries Slices (Fragaria ananassa)

Published on 2025-06-30 by Patr�cia Antunes, Sara Dias, Diogo Gon�alves, Telma Orvalho, Marta B. Evangelista, Enrique Pino-Hern�ndez, Marco Alves @MDPI

Abstract: This study aimed to evaluate the drying kinetics, microstructural features, moisture content, color, pH, aw, texture, acidity, rehydration capacity, and sensorial attributes of strawberry slices processed by different drying methodologies. Strawberry samples were processed by hot air-drying (HA, 60 &deg;C, 0.5 m/s), freeze-drying (FD, 0.055 mbar), and pulsed electric field (PEF)-assisted freeze-drying (PEFFD, 1 kV/cm and 3.2 kJ/kg). PEF pre-treatment significantly increased cell membrane[...]

Our summary: This study evaluated the impact of different dehydration methods on the drying efficiency, nutritional and physico-chemical quality of strawberry slices. PEF pre-treatment improved drying efficiency and quality, with PEFFD samples showing better retention of shape and volume. Further research is needed to assess industrial scalability and economic feasibility.

Pourous carbon-based material for lead-acid battery

Patent published on the 2025-06-19 in WO under Ref WO2025125975 by AMIRKABIR UNIV OF TECHNOLOGY [IR] (Ghazitabar Arash [ir], Naderi Malek [ir])

Abstract: A porous carbon-based material for a positive electrode construction of a lead-acid battery comprises a graphene aerogel with an average pore size in a range of 10-20 nm which is cross- linked with a combination of magnesium and zinc ions and doped with a combination of nitrogen and boron atoms and a porous carbon-based material for a negative electrode construction of a lead-acid battery comprises a graphene aerogel with an average pore size in a range of 15-30 nm which is cross-linked with a c[...]

Our summary: Enhanced lead-acid battery lifespan and performance with porous carbon-based materials for positive and negative electrodes.

porous carbon-based material, lead-acid battery, graphene aerogel, electrode construction

Patent

Composite rotator cuff patch and preparation method therefor

Patent published on the 2025-06-12 in WO under Ref WO2025118346 by GUANHAO BIOTECH CO LTD [CN] (Mo Ziru [cn])

Abstract: Disclosed in the present application are a composite rotator cuff patch and a preparation method therefor. The composite rotator cuff patch is divided into an electrospun layer and a collagen layer. An electrospun nanofiber membrane is coated with a layer of cross-linked collagen gel, and then composite freeze-drying is carried out to obtain the composite rotator cuff patch of the present application. The rotator cuff patch has good biocompatibility and proper tissue adhesion, does not require s[...]

Our summary: Composite rotator cuff patch with electrospun and collagen layers, prepared by composite freeze-drying for good biocompatibility and tissue adhesion, no sutures needed for fixation, degrades in vivo without postoperative removal.

composite, rotator cuff, patch, preparation

Patent

Variable power heater freeze-dryer apparatus and methods of use

Patent published on the 2025-04-10 in AU under Ref AU2023355393 by PEAK & PRAIRIES IND CORP (Slenders Kailyn, Slenders William, Guckert Mark, Lloyd Darren)

Methods for anchoring lyophilized reagents to a substrate and complexes formed therefrom

Patent published on the 2025-03-13 in WO under Ref WO2025054265 by ARGONAUT MFG SERVICES INC [US] (Nowakowski Mark [us])

Abstract: Described herein are methods for producing dried reagent:substrate complexes suitable for use in various types of assays. Specifically, the surface of the substrate can be modified such that subsequent lyophilization of the reagent on the substrate's surface can result in the dried reagent being anchored to the substrate's surface.[...]

Our summary: Methods for anchoring lyophilized reagents to a substrate, producing dried reagent:substrate complexes, modifying substrate surface for anchoring dried reagent.

anchoring, lyophilized reagents, substrate, complexes

Patent

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