Stabilizing Lattice Oxygen of Bi2O3 by Interstitial Insertion of Indium for Efficient Formic Acid Electrosynthesis.

Bismuth oxide (Bi2O3) emerges as a potent catalyst for converting CO2 to formic acid (HCOOH), leveraging its abundant lattice oxygen and the high activity of its Bi-O bonds. Yet, its durability is usually impeded by the loss of lattice oxygen causing structure alteration and destabilized active bonds. Herein, we report an innovative approach via the interstitial incorporation of indium (In) into the Bi2O3, significantly enhancing bond stability and preserving lattice oxygen.

Single organic electrode for multi-system dual-ion symmetric batteries.

The large void space of organic electrodes endows themselves with the capability to store different counter ions without size concern. In this work, a small-molecule organic bipolar electrode called diquinoxalino[2,3-a:2',3'-c]phenazine-2,6,10-tris(phenoxazine) (DQPZ-3PXZ) is designed. Based on its robust solid structure by the π conjugation of diquinoxalino[2,3-a:2',3'-c]phenazine (DQPZ) and phenoxazine (PXZ), DQPZ-3PXZ can indiscriminately and stably host 5 counter ions with different charge and size (Li, Na, K, PF and FSI).

LiTiO@carbon nanotube arrays as high-performance anode for Li-ion batteries.

The innovation of advanced high-rate anodes is of great significance for the development of high-power and fast-charging lithium-ion batteries (LIBs). In this work, self-supported LiTiO@carbon (LTO@C) nanotube arrays as a high-quality anode are fabricated anodizing and hydrothermal processes. Owing to the structure having a high contact surface area and good stability, as well as the incorporation of carbon, the LTO@C exhibits a remarkable rate capability (a reversible capability of 290 mA h g, 251.

The Influence of Social Media Usage and Perceived Government Market Orientation on Travel Intention to an Internet Celebrity City: Exploring the Mediating Effects of Place Attachment and Perceived Value.

As the usage of social media continues to grow and local governments expand their promotional efforts, more internet celebrity cities (ICCs) are emerging as popular tourist destinations. To investigate the internal mechanisms that affect tourists' travel intentions to such destinations, place attachment and perceived value were proposed as two factors reflecting their deeper emotional connections and practical assessments to visit ICCs. This study was conducted to examine the relationship between social media usage, perceived government market orientation (PGMO), place attachment, perceived value, and travel intention in the context of Chongqing, a popular ICC in China.

Synthesis and Optoelectronic Properties of a Novel Pt(IV)(C∧N∧C)(Cl)(DMSO) Complex Cyclometalated by Tridentate Diphenylpyridine.

A novel tridentate-cyclometalating Pt(IV) complex, namely, Pt(IV)(C∧N∧C)(Cl)(DMSO), is initially synthesized through a series of reactions using Pt(II) complexes. The optoelectronic properties of Pt(IV)(C∧N∧C)(Cl)(DMSO) are fully studied by adequate characterizations.

Small-Molecule Organic Cathodes with Carbon Coating for Highly Efficient Potassium-ion Batteries.

Small-molecule organic cathodes face dissolution in potassium-ion batteries (PIBs). For the first time, an interesting and effective strategy is unveiled to resolve this issue by designing a new soluble small-molecule organic compound namely [N,N'-bis(2-anthraquinone)]-1,4,5,8-naphthalenetetracarboxdiimide (NTCDI-DAQ, 237 mAh g ): Through the precise manipulation of carbonization temperature and time, the molecules on the surface of NTCDI-DAQ particles can be transformed into amorphous carbon with controllable thickness. This strategy called surface self-carbonization can form a carbon protective layer on organic cathodes and significantly increase their insolubility against liquid electrolytes without affecting the electrochemical behavior of bulk particles.

Oxygen vacancies engineering in electrocatalysts nitrogen reduction reaction.

Ammonia is important, both as a fertilizer and as a carrier of clean energy, mainly produced by the Haber-Bosch process, which consumes hydrogen and emits large amounts of carbon dioxide. The ENRR (Electronchemical Nitrogen Reduction Reaction) is considered a promising method for nitrogen fixation owing to their low energy consumption, green and mild. However, the ammonia yield and Faraday efficiency of the ENRR catalysts are low due to the competitive reaction between HER and NRR, the weak adsorption of N2 andthe strong N≡N triple bond.

Metabolome, microbiome, and gene expression alterations in the colon of newborn piglets with intrauterine growth restriction.

Newborn animals with intrauterine growth restriction (IUGR) are characterized by impaired intestinal structure and function; however, their intestinal microbiota and metabolome profiles have not been fully identified. The present study investigated the differences in colonic microbiota, metabolomics, and barrier function-related gene expression profiles between the IUGR and normal birth weight (NBW) piglets at 7, 21, and 28 days of age. Forty-eight piglets (24 NBW and 24 IUGR) from 24 litters were assigned to assess the differences in colonic microbiota, metabolomics, and gene expression between IUGR and NBW piglets.

Maternal probiotics supplementation improves immune and antioxidant function in suckling piglets via modifying gut microbiota.

Aim: Probiotics could improve the health, growth, and development of host or their foetuses/offspring via regulating gut microbiota. The present study was conducted to determine the effects of maternal probiotics supplementation on gut microbiota and metabolites of sows and their suckling piglets, as well as plasma biochemical parameters, oxidative/anti-oxidative indexes, and inflammatory cytokine levels of suckling piglets.

Methods And Results: A total of 32 pregnant Bama mini-pigs were selected and randomly divided into two groups.

2D PtS nanorectangles/g-CN nanosheets with a metal sulfide-support interaction effect for high-efficiency photocatalytic H evolution.

Cocatalyst design is a key approach to acquire high solar-energy conversion efficiency for photocatalytic hydrogen evolution. Here a new in situ vapor-phase (ISVP) growth method is developed to construct the cocatalyst of 2D PtS nanorectangles (a length of ∼7 nm, a width of ∼5 nm) on the surface of g-CN nanosheets. The 2D PtS nanorectangles/g-CN nanosheets (PtS/CN) show an unusual metal sulfide-support interaction (MSSI), which is evidenced by atomic resolution HAADF-STEM, synchrotron-based GIXRD, XPS and DFT calculations.

Dietary Addition With and Xylo-Oligosaccharides Improves Carcass Trait and Meat Quality of Huanjiang Mini-Pigs.

This study was conducted to investigate the effects of dietary addition with (CB) and xylo-oligosaccharides (XOS) on growth performance, carcass trait, and meat quality of pigs. A total of 128 Huanjiang mini-pigs with an initial body weight of 9.5 ± 0.

Electrolyte Effect on a Polyanionic Organic Anode for Pure Organic K-Ion Batteries.

Potassium naphthalene-1,4,5,8-tetracarboxylate (KNTC, 117 mAh g) is a new organic anode for K-ion batteries, which possesses four strong K-O ionic bonds within a -4-valent naphthalene-1,4,5,8-tetracarboxylate skeleton (NTC). And thus, KNTC is a polyanionic organic salt. Simultaneously, new insights are provided by comparing two typical electrolyte systems (carbonate and ether electrolytes) with KPF as the same solute.

The Enhancement of Intestinal Immunity in Offspring Piglets by Maternal Probiotic or Synbiotic Supplementation Is Associated With the Alteration of Gut Microbiota.

A total of 64 pregnant Bama mini-pigs were used to investigate the effects of maternal probiotic or synbiotic supplementation during gestation and lactation on immune response, intestinal morphology, and microbiota community of offspring piglets. The sows were assigned randomly to one of four groups, control group (basal diet), antibiotic group (basal diet supplemented with 50 g/t virginiamycin), probiotic group (basal diet supplemented with 200 mL/d probiotic fermentation broth per pig), or synbiotic group (basal diet supplemented with 200 mL/d probiotic fermentation broth per pig + 500 g/t xylo-oligosaccharides) during pregnancy and lactation periods. After weaning, two piglets close to the average body weight (BW) per litter were selected and fed a basal diet.

A Low-Cost Na-Ion and K-Ion Batteries Using a Common Organic Cathode and Bismuth Anode.

Molecule-aggregation organic electrodes in principle have the capability for "single-molecule-energy-storage" in metal-ion rechargeable batteries, which indicates that the same organic electrode can be simultaneously applied to multiple metal-ion rechargeable batteries. In this study, the polyanionic organic compound 9,10-anthraquinone-2,6-disulfonate (Na AQ26DS, 130 mAh g ) is used as a common cathode and metal bismuth (Bi) as a common anode to simultaneously assemble low-cost Na-ion and K-ion full cells. The Na-ion full cells can deliver the peak discharge capacity of 139 mAh g at 0.

Potential surrogate quantitative immunomodulatory potency assay for monitoring human umbilical cord-derived mesenchymal stem cells production.

Mesenchymal stem cells (MSCs) play an important role as immune modulator through interaction with several immune cells, including macrophages. In this study, the immunomodulatory potency of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) was demonstrated in the in vivo middle cerebral artery occlusion (MCAo)-induced brain injury rat model and in vitro THP-1-derived macrophages model. At 24 h after induction of MCAo, hUC-MSCs was administered via tail vein as a single dose.

Supplementing Synbiotic in Sows' Diets Modifies Beneficially Blood Parameters and Colonic Microbiota Composition and Metabolic Activity in Suckling Piglets.

Nutrients in the maternal diet favor the growth and development of suckling piglets and alter their gut microbiota composition and metabolic activity, thus affecting the hosts. The present study analyzed, in suckling piglets from sows receiving antibiotic or synbiotic supplements from pregnancy to lactation, several biochemical parameters, oxidative/anti-oxidative indices, inflammatory cytokines, and ingestion-related factor levels in plasma, as well as colonic microbiota composition and metabolic activity, and mucosal expression of genes related to the intestinal barrier function. Compared with the control group, maternal synbiotic supplementation decreased ( < 0.

Long-lifespan Polyanionic Organic Cathodes for Highly Efficient Organic Sodium-ion Batteries.

An organic Na-ion battery is reported with a polyanionic 9,10-anthraquinone-2,6-disulfonate (Na AQ26DS, 130 mAh g ) cathode and the Na-intercalated state (Na TP) of sodium terephthalate (Na TP, 255 mAh g ) as the anode. The resulting full cells deliver the maximum discharge capacity of 131 mAh g in 0.5-3.

In Situ Electrochemical Synthesis of Novel Lithium-Rich Organic Cathodes for All-Organic Li-Ion Full Batteries.

The lithium-rich organic cathodes are undoubtedly important for fabricating lithium-ion (Li-ion) full batteries. Currently, very few lithium-rich organic cathodes have been reported for their O-sensitive characteristics. In this article, we initially propose a new electrochemical method to in situ synthesize a novel lithium-rich organic cathode, namely lithium anthracene-9,10-bis[2-benzene-1,4-bis(olate)] (ABB4OLi, = 256 mA h g), from its phenol precursor of anthracene-9,10-bis(2-benzene-1,4-diol).

Strain sensitivity of band structure and electron mobility in perovskite BaSnO: first-principles calculation.

A first-principles electronic structure calculation is utilized to contrastively investigate the crystal structure, band structure, electron effective mass and mobility of perovskite BaSnO under hydrostatic and biaxial strain. Strain-induced changes in relative properties are remarkable and more sensitive to hydrostatic strain than biaxial strain. The structure of BaSnO remains cubic under hydrostatic strain, while it becomes tetragonal under biaxial strain.

Highly Stable and High Rate-Performance Na-Ion Batteries Using Polyanionic Anthraquinone as the Organic Cathode.

Sodium 9,10-anthraquinone-2,6-disulfonate (Na AQ26DS), with polyanionic character and two O-Na ionic bonds, is found to be a highly stable organic cathode in Na-ion batteries, delivering capacities of approximately 120 mAh g for 300 cycles (50 mA g ) and around 99 mAh g for 1000 cycles (1 A g ). These results are the best performance reported to date for small-molecule, anthraquinone-based organic cathodes in Li-, Na-, or K-ion batteries.

Potassium perylene-tetracarboxylate with two-electron redox behaviors as a highly stable organic anode for K-ion batteries.

Potassium perylene-3,4,9,10-tetracarboxylate was exploited as a new organic anode for potassium-ion batteries, exhibiting two-electron redox behavior and a theoretical capacity of 93 mA h g-1. After optimization, the K4PTC electrode showed an average of 50 mA h g-1 over 2500 cycles at a current density of 0.5 A g-1.

Risk of Dementia in Long-Term Benzodiazepine Users: Evidence from a Meta-Analysis of Observational Studies.

Background And Purpose: There is conflicting evidence in the literature on the association between benzodiazepines (BDZs) and the risk of dementia. This meta-analysis aimed to determine the relationship between the long-term usage of BDZs and the risk of dementia.

Methods: The PubMed and Embase databases were systematically searched for relevant publications up to September 2017.