相关实验视频

Updated: May 9, 2025

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

可调节的电荷分布在自支持的NiCoP中,通过V和Mo的结合,在所有pH范围和性海水中实现高效的进化

Tanu Bagaria^1,2, Taranga Borgohain³, Swati Jadhav⁴

¹Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Salt Lake, Kolkata, 700091, India.

Small (Weinheim an der Bergstrasse, Germany)

|May 5, 2025

概括

研究人员开发了一种新的双金属催化剂 (V,M-NCP),用于水电解中的高效演化反应 (HER). 这种持久的催化剂在各种条件下表现出色,包括性海水,推进可持续的燃料生产.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
可持续能源可持续能源

背景情况:

开发高效的电催化剂对于通过水电解来可持续生产燃料至关重要.
电催化剂必须在各种pH条件下表现出高活性和耐用性,包括性海水,用于清洁能源应用.

研究的目的:

制造和描述一种用于增强进化反应 (HER) 的新型双金属合并催化剂.
为了评估催化剂在各种电解质中的性能,包括模拟的性海水.
了解增强的催化活动的理论基础.

主要方法:

使用瓦纳 (V) 和 (Mo) 的电沉积制成NiCoP的电催化剂制造.
在硫酸,酸缓冲溶液,氧化和性海水中进行电化学性能测试.
耐用性测试超过100小时.
使用密度函数理论 (DFT) 分析电子结构和反应机制的理论计算.

主要成果:

V,M (x,y) -NCP催化剂表现出低阻抗和高电化学活性表面积.
实现了HER的低超电位: 24mV (0.5M H2SO4),85mV (1M PBS),32mV (1M KOH) 和41mV (性海水) 在10mA cm-2.2时.
在性海水中表现出优异的稳定性和耐腐蚀性超过100小时.
理论计算证实了由于Mo和V的结合而提高的电子传输效率.

结论:

在NiCoP中,V和Mo的双重合并显著提高了HER的活性和耐用性.
V,M-NCP催化剂在各种pH条件和性海水中有效,为清洁能源提供了一个有前途的解决方案.
本研究提出了一种经济有效且简单的方法,用于开发用于水电解的先进电催化剂.

关键词:

在V和Mo中加入了NiCoP.性海水是一种性海水.电极位置的电极位置气演化反应反应的反应 pH-通用的pH值

更多相关视频

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

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

相关概念视频

Batteries and Fuel Cells

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...

Controlled-Potential Coulometry: Electrolytic Methods

Controlled-Potential Coulometry: Electrolytic Methods

Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential...

Electrolysis

Electrolysis

In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...