Virtual Sensing of Key Variables in the Hydrogen Production Process: A Comparative Study of Data-Driven Models.

Hydrogen is an ideal energy carrier manufactured mainly by the natural gas steam reforming hydrogen production process. The concentrations of CH4, CO, CO2, and H2 in this process are key variables related to product quality, which thus need to be controlled accurately in real-time. However, conventional measurement methods for these concentrations suffer from significant delays or huge acquisition and upkeep costs.

Introduction of Cationic Vacancies into NiFe LDH by In Situ Etching To Improve Overall Water Splitting Performance.

Nickel-iron layered double hydroxide (NiFe LDH) is still one of the hot catalysts for electrochemical water decomposition applications, despite its drawbacks, such as intrinsic activity and poor stability. In this work, the NiFe LDH-D1 electrocatalyst with cationic vacancies is successfully prepared by alkaline etching of Zn ion-doped NiFe LDH. The tightly arranged flocculated nanosheet structure on its surface provided a large active area.

Transcriptome-wide identification and characterization of genes exhibit allele-specific imprinting in maize embryo and endosperm.

Background: Genomic imprinting refers to a subset of genes that are expressed from only one parental allele during seed development in plants. Studies on genomic imprinting have revealed that intraspecific variations in genomic imprinting expression exist in naturally genetic varieties. However, there have been few studies on the functional analysis of allele-specific imprinted genes.

Engineering interfacial coupling between 3D net-like Ni(VO) ultrathin nanosheets and MoS on carbon fiber cloth for boostinghydrogen evolution reaction.

The use of cheap and efficient electrocatalyst for the production of hydrogen is the key to solving the current energy crisis. Herein, we used a two-step hydrothermal process to fabricate noble-metal-free 3D net-like Ni(VO) ultrathin nanosheets coupled with MoS@CFC interface. Unlike the traditional two-dimensional composite materials, Ni(VO) ultrathin nanosheets intersect with MoS nanosheets grown on CFC in a 3D net-like structure (Ni(VO)/MoS@CFC).

A Mini Review of the Preparation and Photocatalytic Properties of Two-Dimensional Materials.

The successful preparation and application of graphene shows that it is feasible for the materials with a thickness of a single atom or few atomic layers to exist stably in nature. These materials can exhibit unusual physical and chemical properties due to their special dimension effects. At present, researchers have made great achievements in the preparation, characterization, modification, and theoretical research of 2D materials.

Design of nickel cobalt molybdate regulated by boronizing for high-performance supercapacitor applications.

Nickel-cobalt-based molybdates have been intensively investigated because of their high theoretical specific capacitance and multifarious oxidation states. Here, we have successfully synthesized hierarchical structures (NiB/Ni(BO)@NiCoMoO) by boronizing NiCoMoO nanosheets on flexible carbon cloth substrates. Benefitting from the synergistic effect among NiB, Ni(BO) and NiCoMoO in hybrid architectures, the electrode material possesses higher capacity of 394.