缺氧的WO3-x球体用于电化学N2氧化到酸盐
Ying Zhang1, Tongxin Xu1, Yabing Shang1
1Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, China.
Journal of colloid and interface science
|July 12, 2023
概括
研究人员开发了空洞的WO3球体,用于电化学氧化 (e-NOR). 这为酸盐合成的能源密集型奥斯瓦尔德工艺提供了一个有希望的替代方案.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 通过奥斯瓦尔德工艺,酸盐合成至关重要,但耗费大量能量.
- 电化学氧化 (e-NOR) 提供了一个可持续的替代方案.
- 开发高效的N2激活电催化剂是具有挑战性的,因为高NN键能.
研究的目的:
- 为e-NOR设计和研究具有最佳氧空位的空心WO3球体.
- 为了提高N2吸附和激活,以实现高效的酸盐合成.
- 为e-NOR应用探索基于过渡金属氧化物的材料.
主要方法:
- 合成有控制氧空位的空洞WO3球体 (WO3-x).
- 对WO3-x进行氧化反应的电化学测试.
- 材料性能和催化性能的表征.
主要成果:
- 最佳合成的WO3-x实现了高酸盐产量,即311.15μmol h−1g−1.1.
- 在e-NOR.中记录了2.00%的法拉第效率.
- 空洞的球形结构和适度的氧气空缺增强了活性表面的可访问性和N2激活.
结论:
- 具有最佳氧空隙的空洞WO3球体显示出对e-NOR的巨大潜力.
- 这些发现表明了开发高效电催化剂的新途径,以实现可持续的酸盐生产.
- 这项研究可以促进对e-NOR的过渡金属氧化物催化剂的进一步开发.
更多相关视频
09:09A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration
Published on: March 29, 2019
7.8K
08:13Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
11.9K
相关概念视频
02:54Lewis Structures of Molecular Compounds and Polyatomic Ions
34.9K
To draw Lewis structures for complicated molecules and molecular ions, it is helpful to follow a step-by-step procedure as outlined:
34.9K
01:26Redox Titration: Other Oxidizing and Reducing Agents
338
Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
338
02:55Exceptions to the Octet Rule
28.5K
Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
28.5K