Epigenetic Silencing of Drives Anthocyanin Reduction in Developing Red-Fleshed Apple.

Red-fleshed apples have attracted widespread attention for their rich anthocyanin content. However, some red-fleshed apples, such as "Xiahongrou" (), exhibit a decline in red pigmentation and anthocyanin content as the fruit develops. The molecular mechanism underlying this flesh discoloration is poorly understood.

Nanoscopic cross-grain cation homogenization in perovskite solar cells.

Multiscale cation inhomogeneity has been a major hurdle in state-of-the-art formamidinium-caesium (FA-Cs) mixed-cation perovskites for achieving perovskite solar cells with optimal power conversion efficiencies and durability. Although the field has attempted to homogenize the overall distributions of FA-Cs in perovskite films from both plan and cross-sectional views, our understanding of grain-to-grain cation inhomogeneity and ability to tailor it-that is, spatially resolving the FA-Cs compositional difference between individual grains down to the nanoscale-are lacking. Here we reveal that as fundamental building blocks of a perovskite film, individual grains exhibit cationic compositions deviating from the prescribed ideal composition, severely limiting the interfacial optoelectronic properties and perovskite layer durability.

A 2D-0D-2D Sandwich Heterostructure toward High-Performance Room-Temperature Gas Sensing.

The construction of two-dimensional (2D) van der Waals (vdW) heterostructures over black phosphorus (BP) has been attracting significant attention to better utilize its inherent properties. The sandwich of zero-dimensional (0D) noble metals within BP-based vdW heterostructures can provide efficient catalytic channels, modulating their surface redox potentials and therefore inducing versatile functionalities. Herein, we realize a 2D WS-Au-BP heterostructure, in which Au nanoparticles are connected between BP and WS via ionic bonds.

Exploring the gas-sensing properties of MOF-derived TiN@CuO as a hydrogen sulfide sensor.

In an effort to develop a long-lasting gas sensor, this article presents titanium nitride (TiN) as a potential substitute sensitive material in conjunction with (copper(II) benzene-1,3,5-tricarboxylate) Cu-BTC-derived CuO. The work focused on the gas-sensing characteristics of TiN/CuO nanoparticles in detecting HS gas at various temperatures and concentrations. XRD, XPS, and SEM were utilized to analyze the composites with varied Cu molar ratios.

Metal-organic frameworks-derived InO/ZnO porous hollow nanocages for highly sensitive HS gas sensor.

The detection of hydrogen sulfide (HS) is critical because of its potential harm and widespread presence in the oil and gas sectors. The zeolitic imidazolate framework-8 (ZIF-8) derived ZnO nanostructures manufactured as gas sensors have exceptional sensitivity and selectivity for HS gas. In/Zn-ZIF-8 template material was synthesized by a simple one-step co-precipitation method followed by thermal annealing in air.

Facile fabrication of nanoflower-like WO/WS heterojunction for highly sensitive NO detection at room temperature.

Realizing efficient detection of ultra-low concentrations of hazardous gases contributes to air pollution monitoring, ecosystem and human health protection. Herein, we firstly fabricated the nanoflower-like WO/WS composites by a facile process to highly sensitively detect NO at room temperature. The WO content in the WO/WS composites can be adjusted by altering the calcination temperature, and the WO nanoparticles disperse uniformly on the WS surface, forming the WO/WS heterojunction.

Theoretical Study on P-coordinated Metal Atoms Embedded in Arsenene for the Conversion of Nitrogen to Ammonia.

The conversion of gaseous N to ammonia under mild conditions by artificial methods has become one of the hot topics and challenges in the field of energy research today. Accordingly, based on density function theory calculations, we comprehensively explored the d-block of metal atoms (Ti, V, Cr, Mn, Fe, Co, Ni, Nb, Mo, Ru, Rh, W, and Pt) embedded in arsenene (Ars) for different transition systems of phosphorus (P) coordination as potential electrocatalysts for N reduction reaction (NRR). By adopting a "two-step" strategy with stringent NRR catalyst screening criteria, we eventually selected Nb@P-Ars as a research object for a further in-depth NRR mechanism study.

Single atom-doped arsenene as electrocatalyst for reducing nitrogen to ammonia: a DFT study.

Due to the wide application of NH3 in the energy and chemical industry, the rational design of a highly efficient and low-cost electrocatalyst for nitrogen fixation at moderate conditions is highly desirable to meet the increasing demand for sustainable energy production in the modern society. Herein, we have systematically studied the catalytic performance of transition metal (TM) atom (i.e.

Influence of Interaction Components on the NO Adsorption Properties of Cu-Ba-Ce Composite Catalysts.

For further investigating the role of components in copper-cerium-barium composite oxide catalysts, a series of noble metal-free catalysts with different barium contents were synthesized by citric acid method. The prepared catalysts were characterized by X-ray diffraction, Brunauer-Emmett- Teller method, scanning electron microscopy, Raman spectroscopy, and Fourier transform infrared spectroscopy. Catalysts were evaluated by NO oxidation, NO adsorption, and NO temperature-programmed desorption.