Explore advanced in situ characterization techniques for Polymer Electrolyte Membrane Fuel Cells (PEMFCs) and Direct Methanol Fuel Cells (DMFCs) with ‘Polymer Electrolyte Membrane and Direct Methanol Fuel Cell Technology, Volume 2’. This essential reference details innovative methods for understanding fuel cell performance and material behavior under operational loads. Discover cutting-edge techniques in catalyst activity analysis, including X-ray absorption, advanced microscopy, and electrochemical mass spectrometry. Delve into water and fuel management characterization with neutron radiography and magnetic resonance imaging. The book also covers locally resolved methods, offering a comprehensive guide for fuel cell designers, manufacturers, and researchers in materials science and electrochemistry seeking to improve efficiency and durability in low-temperature fuel cell technology.