Novel hybrid coating of TiN and carbon with improved corrosion resistance for bipolar plates of PEM water electrolysis

High Hardness, Excellent Hydrophobicity, and Favorable Corrosion Resistance of Plasma-Sprayed FeCrMoSi Amorphous Coatings on 304 Stainless Steel

“…This reaction corresponds to the appearance of Fe 3 O 4 in the XRD patterns ( Figure 1 ), which is composed of FeO and Fe 2 O 3 [ 43 ]. The XPS core-level spectra of Mo before the corrosion resistance test can be identified to be composed of Mo 3d 3/2 and Mo 3d 5/2 peaks of Mo 0 and Mo 6+ states [ 44 , 45 ], as displayed in Figure 9 b. The presence of Mo6+ indicates that a small amount of Mo has been oxidized during APS.…”

“…The electrical conductivity of FeCrMoSi amorphous coatings and 304 SS under different compaction forces was measured using ICR and the results are presented in Figure 11 . The ICR decreases with increasing compaction forces, attributed to the increase in effective contact area [ 45 ]. Specifically, the ICR values at 140 N/cm 2 are summarized in Table 6 .…”

Current status of research on composite bipolar plates for proton exchange membrane fuel cells (PEMFCs): nanofillers and structure optimization

“…2 Bipolar plate performance needs and research directions at a glance. 36,37,[47][48][49][50][51][55][56][57][58][59][60][61][62][63][64][65][66][67] composite bipolar plates due to their small particle size, which gives them a high surface energy. In addition, because most of the carbon-based nanollers have poor compatibility with resins, [86][87][88] excessive addition of nanollers can not be wetted by resin.…”

“…[40][41][42][43][44][45] Bipolar plates of different materials have different advantages and disadvantages: graphite bipolar plates have better electrical and thermal conductivity and meager contact resistance with the GDL, 46 but the mechanical properties of graphite BPs are poor, and the cost of processing them into complex shapes is high. 47,48 As the earliest developed class of bipolar plates, graphite bipolar plates have a mature preparation process. 49 Metal is one of the ideal materials for bipolar plates due to its excellent machinability, mechanical properties and electrical conductivity.…”

The current status of hydrogen energy: an overview

“…15(a)-(c)]. [111][112][113] Fig. 15a shows the general working principle of one water splitting system while Fig.…”