Abstract: The electrocatalyst system that is configured to oxidize a methanol molecule using piezo-electrocatalysis includes a substrate and a piezoelectric semiconductor. The piezoelectric semiconductor is coupled to the substrate. The piezoelectric semiconductor includes a nanostructured semiconducting zinc oxide (ZnO) catalyst. The nanostructured semiconducting zinc oxide catalyst is characterized by a UV-ozone (UV-O3) treatment process. The electrocatalyst system may be provided in a methanol fuel cell.

Abstract: The present disclosure relates to a harmless and recycling treatment method for kitchen waste. The method includes: step S1: sorting the kitchen waste, deodorizing the kitchen waste, and then implementing a solid-liquid separation to the kitchen waste to obtain solid and filtrate; step S2: adjusting pH of the filtrate to 12-13, adding a demulsifier to the filtrate, standing still, recovering an upper layer of oil and obtaining a lower layer of clear liquid; drying and burning the solid obtained in the step S1, to obtain biochar; and step S3: implementing an advanced oxidation treatment and a biochemical treatment to the lower layer of clear liquid obtained in the step S2, to obtain water. The method can effectively recycle the kitchen waste into resources, alleviate the social and environmental problems caused by the current kitchen waste, and the method is suitable for popularization and application.

Abstract: An electrochemical sensor that includes a substrate and a piezoelectric semiconductor which is configured to detect uric acid using piezo-electrocatalysis. The piezoelectric semiconductor is coupled to the substrate. The piezoelectric semiconductor includes a nanostructured semiconducting ZnO catalyst. The nanostructured semiconducting ZnO catalyst has a noncentrosymmetric wurtzite configuration. The nanostructured semiconducting ZnO catalyst is shaped as a nanorod and/or a nanosheet.

Abstract: The present disclosure generally relates to compositions comprising substrate-free 2D tellurene crystals, and the method of making and using the substrate-free 2D tellurene crystals. The 2D tellurene crystals of the present disclosure are characterized by an X-ray diffraction pattern (CuK? radiation, ?=1.54056 A) comprising a peak at 23.79 (2?±0.1°) and optionally one or more peaks selected from the group consisting of 41.26, 47.79, 50.41, and 64.43 (2?±0.1°).

Abstract: The present disclosure generally relates to compositions comprising substrate-free crystalline 2D bismuthene, and the method of making and using the substrate-free crystalline 2D bismuthene.

Abstract: The present disclosure generally relates to compositions comprising substrate-free 2D crystalline nanomaterials of binary compounds of formula (M)x(Te)y, and the method of making and using the substrate-free crystalline 2D crystalline nanomaterial.

Abstract: The present disclosure generally relates to compositions comprising substrate-free crystalline 2D bismuthene, and the method of making and using the substrate-free crystalline 2D bismuthene.

Abstract: An electrochemical sensor that includes a substrate and a piezoelectric semiconductor which is configured to detect ascorbic acid using piezo-electrocatalysis. The piezoelectric semiconductor is coupled to the substrate. The piezoelectric semiconductor includes a nanostructured semiconducting ZnO catalyst. The nanostructured semiconducting ZnO catalyst has a noncentrosymmetric wurtzite configuration. The nanostructured semiconducting ZnO catalyst is shaped as a nanorod and/or a nanosheet.

Abstract: The present disclosure generally relates to compositions comprising substrate-free 2D tellurene crystals, and the method of making and using the substrate-free 2D tellurene crystals. The 2D tellurene crystals of the present disclosure are characterized by an X-ray diffraction pattern (CuK? radiation, ?=1.54056 A) comprising a peak at 23.79 (2?±0.1°) and optionally one or more peaks selected from the group consisting of 41.26, 47.79, 50.41, and 64.43 (2?±0.1°).

Abstract: Highly deformable heterostructures utilizing liquid metals and nanostructures that are suitable for various applications, including but not limited to stretchable electronic devices that can be worn, for example, by a human being. Such a deformable heterostructure includes a stretchable substrate, a conductive liquid metal on the substrate, and nanostructures forming a solid-liquid heterojunction with the conductive liquid metal.

Abstract: Processes for synthesizing substrate-free twinned 2D tellurium crystals with co-existing opposite chirality, and twinned 2D tellurium crystals produced thereby. The substrate-free twinned 2D tellurium crystals include a first wing and a second wing, the first wing and second wing have opposite chirality, and the first wing and the second wing are joined together at an angle to form a V-shaped crystal.

Abstract: The present disclosure relates to a novel triboelectric nanogenerator comprising a novel polyvinyl alcohol (PVA)-based biocompatible polymer. The novel polyvinyl alcohol-based biocompatible polymer comprises a blending product of a mixture comprising a polyvinyl alcohol, a gelatin, and an optional salt. The polyvinyl alcohol-based biocompatible polymer is a substantially transparent film.

Abstract: The present disclosure relates to novel triboelectric nanogenerators with flexible polymeric dielectric layer comprising liquid metal particles, and method of making and using the novel triboelectric nanogenerators.

Abstract: The present disclosure generally relates to compositions comprising substrate-free 2D tellurene crystals, and the method of making and using the substrate-free 2D tellurene crystals. The 2D tellurene crystals of the present disclosure are characterized by an X-ray diffraction pattern (CuK? radiation, ?=1.54056 A) comprising a peak at 23.79 (2?±0.1°) and optionally one or more peaks selected from the group consisting of 41.26, 47.79, 50.41, and 64.43 (2?±0.1°).

Abstract: The present disclosure generally relates to compositions comprising substrate-free 2D tellurene crystals, and the method of making and using the substrate-free 2D tellurene crystals. The 2D tellurene crystals of the present disclosure are characterized by an X-ray diffraction pattern (CuK? radiation, ?=1.54056 A) comprising a peak at 23.79 (2?±0.1°) and optionally one or more peaks selected from the group consisting of 41.26, 47.79, 50.41, and 64.43 (2?±0.1°).

Abstract: The present disclosure generally relates to compositions comprising substrate-free 2D crystalline nanomaterials of binary compounds of formula (M)x(Te)y, and the method of making and using the substrate-free crystalline 2D crystalline nanomaterial.

Abstract: The present disclosure generally relates to compositions comprising substrate-free crystalline 2D bismuthene, and the method of making and using the substrate-free crystalline 2D bismuthene.

Abstract: The present disclosure relates to novel triboelectric nanogenerators with flexible polymeric dielectric layer comprising liquid metal particles, and method of making and using the novel triboelectric nanogenerators.

Abstract: The disclosure provides a transistor array including a substrate and a plurality of transistor elements sharing the substrate. Each of the transistor elements includes: a bottom electrode disposed on the substrate and a connection wire for the bottom electrode; a piezoelectric body disposed on the bottom electrode, wherein the piezoelectric body is made of piezoelectric material; and a top electrode disposed on the piezoelectric body. The disclosure also provides a method for manufacturing a transistor array. The transistor array contains transistor elements which are two-terminal devices. Piezoelectric bodies with piezoelectric properties are provided between the top electrodes and bottom electrodes of the transistor array. The carrier transport progress of the transistor elements in the transistor array device can be effectively regulated or triggered by strains or stresses applied on the transistor elements.

Abstract: The present disclosure generally relates lignin-based biopolymers and triboelectric nanogenerators comprising lignin-based biopolymer. Such triboelectric nanogenerators can generate voltage and current by using the triboelectric effect. The lignin-based biopolymers is a reaction product of a mixture comprising at least a lignin and a starch, and optionally an alcohol and/or a base.