Porous redox‐active metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) have emerged as electrode materials for energy storage devices. These porous frameworks have different ...levels of intrinsic properties such as low solubility, high ionic conductivity (porosity) and low electrical conductivity, all of which are critical parameters when utilised as electrode materials. This Minireview focuses on recent developments of using porous MOFs/COFs as redox active electrode materials for energy storage and strategies to improve their electrochemical performance.
Finding a balance: Redox‐active metal–organic frameworks (MOF) and covalent organic frameworks (COF) have been recently developed as electrode materials for energy storage devices. An equilibrium between stability, porosity and electrical conductivity must be achieved before they can be applied as electrode materials in energy storage devices.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
This article reports on a noninvasive approach in detecting and following-up individuals who are at-risk or have an existing COVID-19 infection, with a potential ability to serve as an epidemic ...control tool. The proposed method uses a developed breath device composed of a nanomaterial-based hybrid sensor array with multiplexed detection capabilities that can detect disease-specific biomarkers from exhaled breath, thus enabling rapid and accurate diagnosis. An exploratory clinical study with this approach was examined in Wuhan, China, during March 2020. The study cohort included 49 confirmed COVID-19 patients, 58 healthy controls, and 33 non-COVID lung infection controls. When applicable, positive COVID-19 patients were sampled twice: during the active disease and after recovery. Discriminant analysis of the obtained signals from the nanomaterial-based sensors achieved very good test discriminations between the different groups. The training and test set data exhibited respectively 94% and 76% accuracy in differentiating patients from controls as well as 90% and 95% accuracy in differentiating between patients with COVID-19 and patients with other lung infections. While further validation studies are needed, the results may serve as a base for technology that would lead to a reduction in the number of unneeded confirmatory tests and lower the burden on hospitals, while allowing individuals a screening solution that can be performed in PoC facilities. The proposed method can be considered as a platform that could be applied for any other disease infection with proper modifications to the artificial intelligence and would therefore be available to serve as a diagnostic tool in case of a new disease outbreak.
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IJS, KILJ, NUK, PNG, UL, UM
Incorporating small organic molecules with redox-active sites into a suitable porous organic framework could enhance both ion diffusion rate and electronic conductivity while reducing its solubility ...in electrolytes. Principles for the construction of a redox-active porous organic framework should not sacrifice the theoretical capacity and should balance various important parameters such as specific capacity, cycling stability, rate capability, as well as scalability. Herein, we designed two new porous organic frameworks as cathode materials for lithium-ion batteries (LIBs) using hexaazatrinaphthalene (HATN) cores which show high theoretical capacities. The polymer materials were synthesized in a facile and scalable manner with different structural features ranging from a rigid conjugated framework (HATNPF1) to a flexible nonconjugated framework (HATNPF2). HATNPF polymers demonstrated a high specific capacity (309 mA h g–1), and excellent long-term cycling stability (92% capacity retention after 1200 cycles) and rate capability (65% capacity retention at 2 A g–1 as compared to capacity at 0.2 A g–1), which is an improvement over previously reported porous organic polymers and the HATN monomer. The structure–property relationships of these porous frameworks were also studied using computational modeling.
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IJS, KILJ, NUK, PNG, UL, UM
This article focuses on the recent development of new strategies and approaches for improving the performance of organic electrodes for rechargeable lithium (sodium) batteries. It is specifically ...focused on organic electron acceptor materials, and their prospects in the field.
This article focuses on the recent development of new strategies and approaches for improving the performance of organic electrodes for rechargeable lithium (sodium) batteries.
Various novel hypercrosslinked porous polymers with phosphonium salt incorporated into their networks were developed. These porous materials have high BET surface areas (up to 1168 m(2) g(-1)) and ...can be used to selectively capture CO2 and efficiently convert CO2 into cyclic carbonates.
Redox active organic molecules as cathode materials for lithium ion batteries are promising. However, these compounds are plagued by their high solubilities in electrolyte solution, leading to ...capacity decay and a short cycling life. Herein, we report nano-composites of hexaazatriphenylene ( HAT ) derivatives and graphene oxide ( GO ) (hexaazatrinaphthalene ( HATN )/ GO and hexaazatrinaphthalene tricarboxylic acid ( HATNTA )/ GO ) as cathode materials for lithium ion batteries. HAT derivatives demonstrate strong π–π and H-bond interactions with GO , which remarkably suppress their dissolution in electrolyte, leading to significant improvement of their electrochemical performance.
Swine enteric coronaviruses are a group of most significant pathogens causing diarrhea in piglets with similar clinical symptoms and pathological changes. To develop a simple, rapid, accurate, and ...high-throughput detection method for diagnosis and differential diagnosis on swine enteric coronaviruses, specific primers and probes were designed based on the highly conserved regions of transmissible gastroenteritis virus (TGEV) N, porcine epidemic diarrhea virus (PEDV) M, porcine deltacoronavirus (PDCoV) M, and porcine enteric alphacoronavirus (PEAV) N genes respectively. A TaqMan-probe-based multiplex real-time RT-qPCR assay was developed and optimized to simultaneously detect these swine enteric coronaviruses. The results showed that the limit of detection can reach as low as 10 copies in singular real-time RT-qPCR assays and 100 copies in multiplex real-time RT-qPCR assay, with all correlation coefficients (
R
2
) at above 0.99, and the amplification efficiency at between 90 and 120%. This multiplex real-time RT-qPCR assay demonstrated high sensitivity, extreme specificity, and excellent repeatability. The multiplex real-time RT-qPCR assay was then employed to detect the swine enteric coronavirus from 354 field diarrheal samples. The results manifested that TGEV and PDCoV were the main pathogens in these samples, accompanied by co-infections. This well-established multiplex real-time RT-qPCR assay provided a rapid, efficient, specific, and sensitive tool for detection of swine enteric coronaviruses.
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CEKLJ, DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NUK, OBVAL, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
A series of molecular sieve SBA-15 supported 1,2,4-triazolium-based ionic liquids (TRILs) were synthesized and employed as efficient and recyclable catalysts for the synthesis of cyclic carbonates ...from CO2 and epoxides. Display omitted
► Molecular sieve SBA-15 supported 1,2,4-triazolium-based ionic liquids (TRILs) were synthesized. ► Immobilized 1,2,4-triazolium-based ionic liquids were demonstrated as effective and recyclable catalysts for the synthesis of cyclic carbonates. ► Hydroxyl and carboxyl-functionalized 1,2,4-triazolium-based ILs immobilized on SBA-15 showed excellent activity and selectivity. ► The OH or COOH group in the TRIL cation combining a synergistic effect with the halide anions accelerated the reactions.
A series of molecular sieve SBA-15 supported 1,2,4-triazolium-based ionic liquids (TRILs) were synthesized and employed as efficient catalysts for the synthesis of cyclic carbonates from CO2 and epoxides. The effects of various parameters, such as functional groups, anions of the catalysts, reaction temperature, pressure, reaction time, and the amount of catalyst used, on the reaction were investigated systematically. In addition, the catalyst can be easily recovered by filtration and reused over six times without loss of catalytic activity. It was found that high yield (80–99%) and excellent selectivity (97–99%) of cyclic carbonates could be achieved at mild conditions (2.0MPa, 110°C and 2h) without additional organic solvents or co-catalysts.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
Although several studies have explored the influence of calcium (Ca), phosphorus (P), and exogenous phytase (EP) on growth performance and bone mineralization responses to dietary nonphytate P (nPP) ...levels in broilers, there remains a gap in meta-analytical research focusing on these factors under Eimeria or necrotic enteritis (NE) infections. To address this gap, we conducted a systematic review and meta-analysis of the relevant literature to shed light on this issue. We found that regardless of infection status, reducing Ca and nPP levels in broiler diets led to decreased body weight gain (BWG), feed intake (FI) and bone ash percentage. Eimeria vaccination reduced BWG and bone ash weight, whereas Eimeria infection severely impacted BWG, FI, feed conversion ratio (FCR), and bone ash weight. However, phytase supplementation increased BWG, bone ash percentage and ash weight. Notably, the efficacy of phytase on bone ash percentage and ash weight were compromised when broilers were infected with Eimeria or necrotic enteritis. Our findings suggest that Ca, nPP, phytase, and infection conditions significantly influence the growth performance and bone mineralization of broilers. The effects of phytase on bone ash weight and ash percentage vary depending on different infection status. Given the complexity of these interrelationships, further research is warranted to deepen our understanding of their combined effects on broiler growth and bone mineralization under Eimeria infections.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
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