Manipulating Trimetal Catalytic Activities for Efficient Urea Electrooxidation-Coupled Hydrogen Production at Ampere-Level Current Densities.

Replacing the oxygen evolution reaction (OER) with the urea oxidation reaction (UOR) in conjunction with the hydrogen evolution reaction (HER) offers a feasible and environmentally friendly approach for handling urea-rich wastewater and generating energy-saving hydrogen. However, the deactivation and detachment of active sites in powder electrocatalysts reported hitherto present significant challenges to achieving high efficiency and sustainability in energy-saving hydrogen production. Herein, a self-supported bimetallic nickel manganese metal-organic framework (NiMn-MOF) nanosheet and its derived heterostructure composed of NiMn-MOF decorated with ultrafine Pt nanocrystals (Pt/NiMn-MOF) are rationally designed.

Pr doping promotes the formation of Pt single atoms by regulating metal-support interaction for remarkable photocatalytic hydrogen production.

Since the metal-support interaction (MSI) has a great influence on the structure and properties of single atom catalysts (SACs), the activity and stability of SACs can be effectively regulated by adjusting the structure of the matrix. Herein, the morphology of surface supported Pt species can be controlled by doping to adjust the properties of TiO support. Specifically, under the same conditions, the Pt species on the Pr doped TiO surface are Pt SAs (Pt/TiO(Pr)), while on the pure TiO surface are particles (Pt/TiO).

In-situ synthesis to promote surface reconstruction of metal-organic frameworks for high-performance water/seawater oxidation.

Metal-organic frameworks (MOFs) have gained tremendous notice for the application in alkaline water/seawater oxidation due to their tunable structures and abundant accessible metal sites. However, exploring cost-effective oxygen evolution reaction (OER) electrocatalysts with high catalytic activity and excellent stability remains a great challenge. In this work, a promising strategy is proposed to regulate the crystalline structures and electronic properties of NiFe-metal-organic frameworks (NiFe-MOFs) by altering the organic ligands.

Insight into mechanism for remarkable photocatalytic hydrogen evolution of Cu/Pr dual atom co-modified TiO.

The development of high-activity photocatalysts is crucial for the current large-scale development of photocatalytic hydrogen applications. Herein, we have developed a strategy to significantly enhance the hydrogen photocatalytic activity of Cu/Pr di-atom co-modified TiO architectures by selectively anchoring Cu single atoms on the oxygen vacancies of the TiO surface and replacing a trace of Ti atoms in the bulk with rare earth Pr atoms. Calculation results demonstrated that the synergistic effect between Cu single atoms and Pr atoms regulates the electronic structure of Cu/Pr-TiO, thus promoting the separation of photogenerated carriers and their directional migration to Cu single atoms for the photocatalytic reaction.

Changeable Active Sites by Pr Doping CuSA-TiO Photocatalyst for Excellent Hydrogen Production.

Photocatalytic water splitting for clean hydrogen production has been a very attractive research field for decades. However, the insightful understanding of the actual active sites and their impact on catalytic performance is still ambiguous. Herein, a Pr-doped TiO-supported Cu single atom (SA) photocatalyst is successfully synthesized (noted as Cu/Pr-TiO).

Interface Engineering Induced Electron Redistribution at Pt /NiTe-Ns Interfaces for Promoting pH-Universal and Chloride-Tolerant Hydrogen Evolution Reaction.

Exploring highly efficient hydrogen evolution reaction (HER) electrocatalysts for large-scale water electrolysis in the full potential of hydrogen (pH) range is highly desirable, but it remains a significant challenge. Herein, a simple pathway is proposed to synthesize a hybrid electrocatalyst by decorating small metallic platinum (Pt) nanosheets on a large nickel telluride nanosheet (termed as Pt /NiTe-Ns). The as-prepared Pt /NiTe-Ns catalyst only requires overpotentials of 72, 162, and 65 mV to reach a high current density of 200 mA cm in alkaline, neutral and acidic conditions, respectively.

Anchored Cu single atoms on porous g-CN for superior photocatalytic H evolution from water splitting.

One of the most promising strategies for producing hydrogen is photocatalytic water splitting, in which the photocatalyst is a key component. Among many semiconductor photocatalysts, g-CN has attracted great attention due to its narrow band gap, excellent stability and low cost. However, practical application is limited by its poor intrinsic activity.

Etching dopant elements to construct active-site-rich MoC for the hydrogen evolution reaction.

We propose a strategy to etch dopants to construct MoC with more unsaturated coordination of Mo atoms and lattice distortion for enhanced catalytic activity. It is more effective than doping and etching pure MoC and provides a novel strategy for the preparation of catalysts with high catalytic activity.

Excellent performance supercapacitors with the compounding of Ni(OH) and ZIF-67 derived Co-C-N nanosheets as flexible electrode materials.

Owing to the advantages of high theoretical capacity, low cost, and excellent chemical stability, Ni(OH) is considered as a potential candidate for electrode materials of supercapacitors. However, its further applications are limited by its adverse surface chemical properties. In this paper, a composite material consisting of ZIF-67 derived Co-C-N nanosheets and Ni(OH) was synthesized facilely on carbon cloth , and based on the collective advantages of the various components, excellent electrochemical performance could be achieved when used as a flexible electrode material of supercapacitors.

New Strategy and Excellent Fluorescence Property of Unique Core-Shell Structure Based on Liquid Metals/Metal Halides.

The further applications of liquid metals (LMs) are limited by their common shortcoming of silver-white physical appearance, which deviates from the impose stringent requirements for color and aesthetics. Herein, a concept is proposed for constructing fluorescent core-shell structures based on the components and properties of LMs, and metal halides. The metal halides endow LMs with polychromatic and stable fluorescence characteristics.

Unique Surface Fluorescence Induced from the Core-Shell Structure of Gallium-Based Liquid Metals Prepared by Thermal Oxidation Processing.

Liquid metals (LMs) have emerged as promising functional materials that combine the properties of both liquid and metal. These characteristics enabled them to find applications in many fields. However, the LMs usually can only display a silver-white physical appearance, which limits their further applications in the fields with the imposition of stringent requirements for color and aesthetics.

Performance and mechanism of nickel hydroxide catalyzed reduction of N-nitrosodimethylamine by iron.

Since iron (Fe) was first proven to have a strong reduction ability, it has been successfully applied to remove pollutants from water. In this study, nickel hydroxide (Ni(OH)), a catalyst commonly used in hydrogen evolution reactions, was added to improve the activity of Fe to remove N-nitrosodimethylamine (NDMA). The results showed that with the increasing Ni(OH) dosages, the reactions accelerated.

Hybrid cobalt-manganese oxides prepared by ordered steps with a ternary nanosheet structure and its high performance as a binder-free electrode for energy storage.

Binder-free electrodes for supercapacitors have attracted much attention as no additive is required in their preparation processes. Herein, a hybrid metal oxide composed of graphene oxide (CoO/MnO/GO) was successfully prepared. Briefly, electrochemical deposition and sintering were applied to grow CoO nanosheets on nickel foam.

Platinum-Supported Cerium-Doped Indium Oxide for Highly Sensitive Triethylamine Gas Sensing with Good Antihumidity.

Triethylamine is extremely harmful to human health, and chronic inhalation can lead to respiratory and hematological diseases and eye lesions. Hence, it is essential to develop a triethylamine gas-sensing technology with high response, selectivity, and stability for use in healthcare and environmental monitoring. In this work, a simple and low-cost sensor based on the Pt- and Ce-modified InO hollow structure to selectively detect triethylamine is developed.

Nanoporous Carbon Derived from Green Material by an Ordered Activation Method and Its High Capacitance for Energy Storage.

Carbon materials have been widely used as electrode materials for supercapacitors, while the current carbon precursors are mainly derived from fossil fuels. Biomass-derived carbon materials have become new and effective materials for electrodes of supercapacitors due to their sustainability, low pollution potential, and abundant reserves. Herein, we present a new biomass carbon material derived from water hyacinth by a novel activation method (combination of KOH and HNO activation).

Abiotic reduction of -chloronitrobenzene by sulfate green rust: influence factors, products and mechanism.

The reduction of -chloronitrobenzene (-CNB) by sulfate green rust (GR ) was systematically studied. The results revealed that GR has a good removal effect on -CNB. The removal efficiencies of -CNB by GR improved with the increase of the pH value.

Separation of misalignment aberrations in interferometric testing for the surface measurement of the frustum of a cone.

The separation of misalignment aberrations is a crucial step in interferometric testing for the acquisition of the real surface. In this paper, a Fizeau interference system and a conical mirror with a certain angle were used to achieve the shape measurement of the inner surface of the frustum of a cone. Based on the ray-tracing method, the relationship between the adjustment errors and misalignment aberrations was established, and the misalignment aberrations could be removed by using the error separation model that accords with the least-square algorithm theory.

Ag Nanoparticles Sensitized InO Nanograin for the Ultrasensitive HCHO Detection at Room Temperature.

Formaldehyde (HCHO) is the main source of indoor air pollutant. HCHO sensors are therefore of paramount importance for timely detection in daily life. However, existing sensors do not meet the stringent performance targets, while deactivation due to sensing detection at room temperature, for example, at extremely low concentration of formaldehyde (especially lower than 0.

Expression of ERCC1, TYMS, RRM1, TUBB3, non-muscle myosin II, myoglobin and MyoD1 in lung adenocarcinoma pleural effusions predicts survival in patients receiving platinum-based chemotherapy.

The association between the expression of excision repair cross‑complementing gene 1 (ERCC1), thymidylate synthase (TYMS), ribonuleotide reductase M1 (RRM1), βIII‑tubulin (TUBB3), non‑muscle myosin II, myoglobin and MyoD1 in metastatic lung adenocarcinoma, and clinical outcomes with platinum‑based chemotherapy treatment is not well‑established. Recently, increasing attention has been focused on the involvement of ERCC1, TYMS, RRM1 and TUBB3 in the development of drug resistance. There has been less research into the role of muscle myosin II, myoglobin and MyoD1 in the pathogenesis of lung cancer, although these genes are known to have important functions within tumor cells.

[Performance of computer-assisted imaging system in detection of squamous intraepithelial lesion of uterine cervix].

Objective: To evaluate the performance of computer-assisted imaging system in the detection of cervical squamous intraepithelial lesion and quality-assurance.

Methods: Manual PAP screening (n = 140 580) and image-assisted screening (n = 32 885) were compared for the detection rates of squamous cell abnormalities, the atypical squamous cells (ASC) to squamous intraepithelial lesion (SIL) ratio, the positive rates of high risk human papillomavirus (HR-HPV) test in the case of atypical squamous cells of undetermined significance (ASC-US), and the correlation between cytopathology and histopathology.

Results: Compared with manual screening, computer-assisted imaging system showed increased overall positive detection by 0.

[Expression and significance of p-AKT, p-GSK3β and β-catenin in epithelial carcinoma of ovary].

Objective: To investigate the expressions of phosphorylated protein kinase B (p-AKT), phosphorylated glycogen synthase kinase 3β (p-GSK3β) and β-catenin proteins and to evaluate their relationship with the clinical pathological characteristics in epithelial tumors of the ovary.

Methods: The expression of p-AKT, p-GSK3β, and β-catenin was detected with immunohistochemical staining (EnVision method) in 10 cases of benign epithelial neoplasia, 10 cases of borderline epithelial neoplasia and 70 cases of ovarian carcinoma. The relationship of the expression of p-AKT, p-GSK3β and β-catenin with the clinical pathological features was analyzed.

Downregulation of NIN/RPN12 binding protein inhibit the growth of human hepatocellular carcinoma cells.

The ribosome assembly factor NIN/RPN12 binding protein (Nob1) has been suggested to be essential for processing of the 20S pre-rRNA to the mature 18S rRNA, and is also reported to participate in proteasome biogenesis. However, it is unclear whether Nob1 is involved in tumor cells growth. The aim of this study was to determine whether the suppression of Nob1 by short hairpin RNA (shRNA) inhibits the growth of human hepatocellular carcinoma (HCC) cells.

The pediatric renal clear cell "sugar" tumor: pseudo-alveolar structure mimicking clear cell renal carcinoma.

The primary extrapulmonary sugar tumor (PEST) is rare. Up to now, only 16 cases of PEST have been reported, including 5 pediatric cases. We report a renal benign PEST in a 16-year-old boy, which is the first such case to be reported in the pediatric kidney.

EUS-assisted band ligation of small duodenal stromal tumors and follow-up by EUS.

Background: Duodenal GI stromal tumors (GISTs), with potential for malignant transformation, arise in muscularis propria. It is difficult to endoscopically resect lesions in the muscularis propria by using standard electrosurgical techniques.

Objectives: Our purpose was to investigate the efficacy of a new method for resection of these tumors, EUS-assisted band ligation.