Results 141 to 150 of about 847,212 (208)

Upcycling Spent Cu‐Containing Catalysts to CuO Humidity Sensors for Physiological Detection: Calcination Temperature Optimization

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT To achieve high‐value utilization of spent catalysts, we recovered copper (Cu) from Cu‐bearing spent catalysts via acid‐base leaching to fabricate CuO and systematically studied how calcination temperature affects their microstructure and humidity‐sensing performance. Characterizations show that CuO‐500 (calcined at 500°C) has a large specific
Cong Liang   +9 more
wiley   +1 more source

机器人工作空间轨迹规划仿真研究

open access: yes, 2016
在机器人进行工作空间的轨迹优化的研究中,对机器人进行工作空间的轨迹规划,可使机器人拥有良好的工作空间运动学和动力学性能,而关节空间中的性能相对较差。所以在工作空间内对机器人进行轨迹规划,并在实际应用中,使其在关节空间内拥有良好的速度响应性能和位置精度等是轨迹规划的难点。为了解决上述问题,将编写Python语言的轨迹规划程序,使用纯工作空间的五次样条函数对Delta机器人进行合理的轨迹规划,再利用两种动力学优化模型对轨迹规划结果进行合理的优化对比。结果表明 ...
宁学涛, 石强, 陈健, 潘玉田
core  

Selective Recovery of Palladium From Spent Automotive Exhaust Catalysts Using Amidoxime‐Functionalized Calix[4]arene and Subsequent Reduction to Palladium Nanoparticles

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Spent automotive exhaust catalysts represent the largest secondary resource of palladium (Pd), and their efficient recovery is essential to support the sustainability of Pd‐related industries. Inspired by supramolecular chemistry, a novel calixarene derivative, 5,11,17,23‐tetra‐tert‐butyl‐25,27‐bis[(N′‐hydroxyacetimidamide)ethoxy]‐26,28 ...
Tao Ge   +8 more
wiley   +1 more source

新疆跨国旅游合作结构模式研究——基于空间区位选择视角[J]

open access: yes, 2014
近年我国国际旅游合作蓬勃发展,但呈现"东重西轻"和"南重北轻"不均衡特征。基于空间区位选择视角,分析了新疆跨国旅游合作空间扩张机理,构建了5种国际旅游合作结构模式;在时空演进上,新疆以边境区合作占主导,主要分为4种旅游合作类型。其合作基本动力包括地缘驱动力、经济区动力和组织调控力等,复合构成了该区域动态性旅游合作动力系统。随着该区域旅游合作要素不断整合、创新,合作结构模式将不断更新 ...
王辉   +4 more
core  

Electron–Hole Dual Cocatalyst Promoted ZnIn2S4 for Photocatalytic H2 Evolution Coupled With Benzyl Alcohol Oxidation

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The central challenge in photocatalysis is to direct photogenerated electrons and holes toward the simultaneous and efficient production of hydrogen and value‐added chemicals. To address the pronounced charge recombination and sluggish surface kinetics of ZnIn2S4 nanoflowers, we construct a ternary photocatalyst synergistically decorated with ...
Xue Men, Haiou Liang, Man Zhang, Jie Bai
wiley   +1 more source

Modulating Oxygen Vacancies via Ag Induced Interfacial Electron Transfer in SnO2 for CO2 Electroreduction

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Regulating oxygen vacancies (Ov) in SnO2 to facilitate high‐efficiency carbon dioxide electroreduction reduction reaction (CO2RR) is still a significant challenge. Therefore, a strategy based on Ag‐induced interfacial electron transfer was proposed to modulate Ov in SnO2 for CO2 electroreduction. The prepared Ag/SnO2 with an optimal Ov content
Haoyu Qi   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy