相关实验视频

Updated: Sep 18, 2025

Hydrogen Production and Utilization in a Membrane Reactor

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

一个节能pH不对称的电解器,用于同时转化甲和生产气

Rong Chen¹, Furong Xie¹, Zinan Wu¹

¹Shanghai Key Laboratory of Hydrogen Science & Center of Hydrogen Science, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

Science bulletin

|June 25, 2025

概括

这项研究引入了一个pH不对称的电解器,可以有效地将废弃的酸转化为有价值的化学品和燃料. 这种可持续的方法大大降低了电化学甲氧化的能源消耗.

科学领域:

电化学电化学电化学
催化剂是一种催化剂.
可持续化学可持续化学

背景情况:

废酸中和能源 (ENE) 为化学品生产和节能提供了一个可持续的途径.
电化学甲氧化 (EOM) 是将甲转化为有价值的化学物质的关键过程.

研究的目的:

开发一种可持续和节能的方法,用于电催化甲氧化与生产相结合.
用废酸中和能量 (ENE) 来为电化学过程提供动力.

主要方法:

使用具有双极膜的pH不对称电解器.
在甲氧化和生产中使用基于NiO的电催化剂.
使用现场拉曼光谱和密度函数理论 (DFT) 计算,研究了催化机制.

主要成果:

实现了高达2.6mmolgNiO-1的C1/C2分子生产速度h-1与1.4V的同时H2生产.
在辅助ENE供应下,在700mV的较低操作电压下,经过24小时以上的持续催化,实现了36.9%的节能.
确定了Ni^III-O^∙-Ni^III-O^-活动部位对EOM至关重要.
展示了高耐用性,在10 mA cm-2的微不足道的降解.

结论:

pH不对称的电解器有效地将废弃酸/转化为有价值的化学品和,从而大大节省能源.
开发的电催化剂和系统证明了工业应用的高效率,耐用性和经济可行性.
这种方法为从废弃酸流和可持续化学品生产中回收资源提供了途径.

关键词:

不对称的电解器在C1/C2氧酸盐中.的生产生产的生产.甲转换转换方法甲转换甲氧化过程中的甲.废弃的酸/废弃物

更多相关视频

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Published on: December 3, 2019

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

相关概念视频

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...

Chemiosmosis

Chemiosmosis

Oxidative phosphorylation is a highly efficient process that generates large amounts of adenosine triphosphate (ATP), the basic unit of energy that drives many cellular processes. Oxidative phosphorylation involves two processes— the electron transport chain and chemiosmosis.
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...

Metabolism of Chemolithotrophs

Metabolism of Chemolithotrophs

Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.