Publications by authors named "Ya-Meng Xie"
Stapled hemorrhoidopexy has been used for years to treat hemorrhoids. Despite numerous systematic reviews and meta-analyses on the topic, inconsistent conclusions have left people uncertain about its effectiveness and raised doubts about the quality of these reviews.In order to provide reliable evidence for clinical practice, it is crucial to conduct an overview to assess the quality of MAs/SRs regarding the efficacy and complications of SH.
View Article and Find Full Text PDFA zinc-infiltration process was adopted to prepare silver-doped copper nanosheet arrays. The larger atomic radius of Ag introduces tensile stress, which lowers the electron density at the s-orbitals of Cu atoms and improves the adsorption capability for hydrogen atoms. As a catalyst for hydrogen evolution, these silver doped copper nanosheet arrays achieved a low overpotential of 103 mV at 10 mA cm in 1 M KOH, which is 604 mV lower than that of pure copper foil.
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- Metallic materials with special surface structures are in demand due to their unique properties, but creating bulk materials with specific crystal faces at the nanoscale is challenging.
- The study presents a new method that combines ion implantation and oxidation-etching to modify the surface of a copper plate, exposing Cu(100) crystal planes.
- The resulting Cu plate shows improved catalytic performance in hydrogen evolution reactions, requiring only 273 mV to achieve a current density of 10 mA/cm, indicating better efficiency due to its unique surface structure.
Engineering high-performance electrocatalysts is of great importance for energy conversion and storage. As an efficient strategy, element doping has long been adopted to improve catalytic activity, however, it has not been clarified how the valence state of dopant affects the catalytic mechanism and properties. Herein, it is reported that the valence state of a doping element plays a crucial role in improving catalytic performance.
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- - This study focuses on creating cost-effective and efficient photocatalysts for water splitting to convert solar energy into hydrogen fuel, eliminating the need for expensive noble metal co-catalysts.
- - The researchers used an intense laser method to create L-NiCo nanosheets from a nickel-cobalt alloy, which have a specific nonstoichiometric composition that enhances their performance in sunlight.
- - The resulting photocatalyst achieved a hydrogen production rate of 1.7 μmol/h under standard sunlight conditions and demonstrated an apparent quantum yield of 1.38% at a wavelength of 380 nm.
P-N depleted bulk BiOBr/α-FeO heterojunction (DBH) nanostructures with the growth of (001) BiOBr facets were prepared via a simple hydrothermal method. BiOBr possesses an average thickness of around 50 nm and shows preferential exposure of the (001) facets. α-FeO nanoparticles, with an average diameter of 5 nm, are attached on the surface of BiOBr as 20-50 nm clusters with an intimate contact interface.
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