proton conducting
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2022 ◽  
Vol 521 ◽  
pp. 230989
Author(s):  
Zuzhi Huang ◽  
Yang Yang ◽  
Haipeng Lv ◽  
Caixia Shi ◽  
Yihan Ling ◽  
...  


2022 ◽  
Vol 202 ◽  
pp. 111007
Author(s):  
Lei He ◽  
Huiying Gao ◽  
Yan Xuan ◽  
Feng Zhang ◽  
Junfeng Ren ◽  
...  


Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 263
Author(s):  
Rudzani Sigwadi ◽  
Touhami Mokrani ◽  
Phumlani Msomi ◽  
Fulufhelo Nemavhola

To investigate the effect of acidic nanoparticles on proton conductivity, permeability, and fuel-cell performance, a commercial Nafion® 117 membrane was impregnated with zirconium phosphates (ZrP) and sulfated zirconium (S-ZrO2) nanoparticles. As they are more stable than other solid superacids, sulfated metal oxides have been the subject of intensive research. Meanwhile, hydrophilic, proton-conducting inorganic acids such as zirconium phosphate (ZrP) have been used to modify the Nafion® membrane due to their hydrophilic nature, proton-conducting material, very low toxicity, low cost, and stability in a hydrogen/oxygen atmosphere. A tensile test, water uptake, methanol crossover, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and scanning electron microscopy (SEM) were used to assess the capacity of nanocomposite membranes to function in a fuel cell. The modified Nafion® membrane had a higher water uptake and a lower water content angle than the commercial Nafion® 117 membrane, indicating that it has a greater impact on conductivity. Under strain rates of 40, 30, and 20 mm/min, the nanocomposite membranes demonstrated more stable thermal deterioration and higher mechanical strength, which offers tremendous promise for fuel-cell applications. When compared to 0.113 S/cm and 0.013 S/cm, respectively, of commercial Nafion® 117 and Nafion® ZrP membranes, the modified Nafion® membrane with ammonia sulphate acid had the highest proton conductivity of 7.891 S/cm. When tested using a direct single-cell methanol fuel cell, it also had the highest power density of 183 mW cm−2 which is better than commercial Nafion® 117 and Nafion® ZrP membranes.



Author(s):  
L. Joseph ◽  
A. Tumuluri ◽  
L. C. Klein




Author(s):  
Yanru Yin ◽  
shoufu yu ◽  
Hailu Dai ◽  
Lei Bi

Doping La0.5Sr0.5MnO3-δ (LSM) cathode with the Co element allows the new material La0.5Sr0.5Mn0.9Co0.1O3-δ (LSMCo) to show improved performance compared with the Co-free LSM for proton-conducting solid oxide fuel cells (H-SOFCs),...



2022 ◽  
Vol 130 (1) ◽  
pp. 1-9
Author(s):  
Tomohiro ISHIYAMA ◽  
Takuya YAMAGUCHI ◽  
Takahisa OMATA


Author(s):  
Stéven Pirou ◽  
Qingjie Wang ◽  
Peyman Khajavi ◽  
Xanthi Georgolamprou ◽  
Sandrine Ricote ◽  
...  


Author(s):  
Rui Guo ◽  
Lei Yang ◽  
Yaowen Wang ◽  
Youcheng Xiao ◽  
Rui Guan ◽  
...  


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