相关实验视频

Updated: May 3, 2026

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

,添加的化作为高效的催化剂,通过糖醇电解共生产和酸盐

Jiuli Chang¹, Fengfeng Song¹, Yan Hou¹

¹School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, P.R. China.

Journal of colloid and interface science

|March 23, 2024

概括

和在泡上的化酸有效催化演变反应和糖醇氧化,产生和酸盐. 这种双重功能使得可持续的化学品生产能够减少能源消耗.

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:

(H2) 和酸盐是重要的能量载体和化学原料.
从聚合物中电化学生产H2和酸盐提供了一个可持续的途径.
高活性催化剂对于高效的演化反应 (HER) 和聚氧化是必不可少的.

研究的目的:

为了研究 (Mo) 和 (W) 化 (Co2P) 在泡 (NF) 上作为电催化剂.
为了评估它们在H2和格莱醇氧化反应 (GOR) 中的HER和格莱醇氧化反应 (GOR) 的性能.
了解催化机制并评估整体能源效率.

主要方法:

合成Mo-Co2P/NF和W-Co2P/NF电催化剂. 这种电催化剂的合成.
电化学表征,包括对HER和GOR的超电位和电流密度测量.
在现场拉曼和红外光谱学以确定活跃的催化站点.
组装和测试用于糖电解的不对称电解器.

主要成果:

W-Co2P/NF 在 -100 mA cm-2 时为 HER 实现了较低的超电位 (113 mV).
通过GOR,Mo-Co2P/NF在选择性格式生产中表现出高效率.
在现场光谱检测中,确定了由Co2P衍生的CoO2作为活性GOR位点.
与水电解相比,不对称的电解仪在1.8V的100mAcm-2下工作,减少了18.2%的电力消耗.

结论:

异质元素合化物表现出对HER和GOR的增强催化性能.
开发的催化剂使H2的高效联合生产和从甘油中形成.
这种方法为生产有价值的化学品提供了一个可持续的途径,减少了能源投入.

关键词:

的化物的化物兴奋剂的使用兴奋剂的使用电触媒溶解是一种电触媒.格式格式格式葡萄糖的氧化反应反应的演化反应反应.

更多相关视频

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

相关概念视频

Catalysis

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...

Heterogeneous Catalysis

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...