The principle of proton exchange membrane fuel cells (PEMFC) is to convert the chemical energy of hydrogen into electrical energy through a series of electrochemical reactions. The efficiency and performance of PEMFC largely depend on the behavior of the materials used, particularly the catalysts on the electrode surfaces. Cyclic voltammetry (CV) is an important electrochemical […]

Bipolar plates are critical components in fuel cells and water electrolysis devices. With increasing environmental awareness and continuous technological advancements, the demand for fuel cells in areas such as electric vehicles and portable power devices is on the rise. Consequently, the market demand for efficient and reliable Bipolar plates is also growing. This trend has

Metal bipolar plates manufactured using photochemical etching processes, followed by diffusion welding, offer several advantages. Firstly, the photochemical etching process can create highly complex bipolar plate channels on the metal surface while ensuring a high degree of precision. Additionally, photochemical etching has minimal impact on the metal material, avoiding the stress and deformation that might

The platinum black catalyst is a highly important material in the fields of chemistry and electrochemistry, consisting of highly dispersed platinum nanoparticles. It is commonly used in chemical reactions to enhance reaction speed and efficiency. Due to its high surface area and surface activity, the platinum black catalyst plays a critical role in various fields

Composition and Working Principle of Single Cells A proton exchange membrane fuel cell (PEMFC) is a type of fuel cell that uses a proton exchange membrane as the electrolyte. The single cell is the fundamental unit that makes up the fuel cell stack. Here are the main components and working principles of a proton exchange

Accurate performance characterization methods are crucial in the study of electrocatalyst performance. This article will detail several common electrocatalyst performance testing methods, including Single battery, rotating disk electrode (RDE) and rotating ring-disk electrode (RRDE) testing, cyclic voltammetry (CV), and linear sweep voltammetry (LSV). Each method has its unique advantages and applicable scope. Understanding the basic

As the world’s energy landscape undergoes transformation and the goals of “carbon peaking” and “carbon neutrality” are proposed, hydrogen energy, with the highest mass energy density and zero carbon emissions, has garnered increasing attention. Proton exchange membrane fuel cells (PEMFCs) are currently a highly promising hydrogen energy utilization technology due to their low operating temperature,

Electrode reactions refer to the chemical reactions that occur at the electrodes where electrons are either lost or gained. The reaction where electrons are lost is called the anode reaction, and the electrode where this reaction occurs is called the anode. The reaction where electrons are gained is called the cathode reaction, and the electrode

Since the birth of proton exchange membrane fuel cells (PEMFCs) in the 1950s, scientists worldwide have never ceased their in-depth research on PEMFCs. This has led to significant advancements in performance, lifespan, and cost, resulting in their widespread application in transportation, portable power sources, and distributed power generation, gradually promoting the commercialization of PEMFCs. As

1. Basic Principles of Proton Exchange Membrane Fuel Cells Proton exchange membrane fuel cells, also known as polymer electrolyte fuel cells, are a type of low-temperature fuel cell that operates at relatively low temperatures (typically below 100 degrees Celsius). This makes them highly versatile in their applications, ranging from powering vehicles to providing backup power