Synthesis of mesoporous carbon-silica-polyaniline and nitrogen-containing carbon-silica films and their corrosion behavior in simulated proton exchange membrane fuel cells environment

High‐Loading Nano‐SnO2 Encapsulated in situ in Three‐Dimensional Rigid Porous Carbon for Superior Lithium‐Ion Batteries

“…Ordered mesoporousc arbon (OMC) has been extensively reported to be used in variousa pplications for energy storage and conversion systems, including supercapacitors, [21][22][23] fuel cells, [24][25][26] catalysts, [27][28][29] solar cells, [30][31][32] and LIBs. [33][34][35] OMCm aterials have distinct advantages with respect to an uniform and interconnected pore structure, tailorable pore sizes, al arge surface area, ah igh pore volume, an outstanding thermal stability and conductivity,a nd af lexible framework structure.…”

In situ synthesis of graphene/carbon nanotube modified ordered mesoporous carbon as protective film of stainless steel bipolar plates for proton exchange membrane fuel cells

“…13,14,50 Some previous researches have reported that hydrophilic groups of the carbon lms can transfer to volatile small-molecules by carbonizing. The water is produced by the cathode oxygen reduction reaction in operation, which should be removed in time in order to prevent blocking the reactant gases access to the electrode and submerging the catalyst.…”

“…In order to analyze the electrochemical behavior in the simulated working environment of PEMFCs, the lms coated 304 SS was immersed in 0.5 mol L À1 H 2 SO 4 aqueous solution for 1 h. When the surface state of working electrode was basically stable, we could evaluate the protective performance of the lms by potentiodynamic polarization curves, as shown in Fig. 14,15 For example, we have reported that an ordered mesoporous boron-containing carbon lm coated on 304 SS shows well protective performance, corresponding E corr and i corr are 183 mV and 0.285 mA cm À2 , respectively. The corrosion current (i corr ) and corrosion potential (E corr ) calculated by potentiodynamic polarization extrapolations for these lms are summarized in Table 3.…”

“…Therefore, high-quality bipolar plates can effectively increase output power density and lengthens service life of PEMFCs. [13][14][15] However, because of the extensive existence of amorphous pore walls, mesoporous carbon materials usually possess lower graphitization degree and electronic conductivity than other commercial high graphitic carbon materials, such as carbon nanotubes and graphene. [4][5][6][7] More studies showed that stainless steels, such as 304, 310, 316 and 321 stainless steels, may be promising metal bipolar plate materials for practical applications in PEMFCs, which possess high mechanical strength and low electrochemical resistance.…”

Highly Sensitive and Selective Dopamine Detection Utilizing Nitrogen‐Doped Mesoporous Carbon Prepared by a Molten Glucose‐Assisted Hard‐Template Approach

“…During the past few years, ordered mesoporous materials have received a great deal of scientific and commercial interest due to their distinctive structure and properties, such as high specific surface area, controllable pore structure, uniform pore distribution, excellent physical/chemical properties. [1][2][3][4] Among various ordered mesoporous materials, ordered mesoporous carbons have been considered as promising candidates for a wide range of important applications, including catalysis, energy storage, sensing, adsorption, and so on. [5][6][7] To further enhance the performances, much effort has been devoted to introducing heteroatoms into the surface or frameworks of mesoporous carbons.…”