High efficient trifunctional electrocatalyst based on bimetallic oxide with rich oxygen vacancies towards electrochemical oxidation of small molecules at high current density

Xu, Xiaodong; Zhang, Yujie; Su, Le; Zhang, Huisheng; Miao, Xiang-Yang

doi:10.1016/j.ijhydene.2022.11.234

Cited by 7 publications

(1 citation statement)

References 61 publications

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“…In addition, we discovered that Xu et al [25] employed ammonia hydroxide (NH 4 OH) as a precipitant to prepare a range of FeCo bimetallic catalysts through the precipitation method. The catalyst with a Co/Fe ratio of 3:7 achieved 38.5% conversion of hydrogen at the outlet under a H 2 ow rate of 500 ml•min − 1 .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Catalytic Conversion of Ortho-Hydrogen to Para-Hydrogen by using Iron- Cobalt Bimetallic Catalysts

Yang,

Li,

Sun

et al. 2024

Preprint

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The catalytic conversion of ortho-hydrogen (o-H2) to para-hydrogen (p-H2) serves as a crucial step in the storage of liquid hydrogen over extended periods. A variety of iron-cobalt catalysts were synthesized using a precipitation technique, incorporating diverse levels of Co doping into Fe-based catalysts. The effects of Co doping on the crystal structure, porosity, and magnetism of FCO were examined through XRD, N2 adsorption-desorption, FTIR, XPS, and VSM analyses. The efficacy of ortho-para hydrogen conversion within FCO at 77 K was analyzed using chromatography. Findings revealed that Co doping enhances the material’s lag coefficient, leading to an increase in active sites and larger magnetic moments. Notably, FCO-5 [n(Fe)/n(Fe + Co) = 0.5] exhibited the most efficient ortho-para hydrogen conversion performance. Specifically, at GHSV = 5400 h− 1, FCO-5 achieved a reaction rate constant of 291.7 mol·L− 1·s− 1, a conversion rate of 99.24%, and a post-conversion p-H2 content of 49.7%.

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Section: Introductionmentioning

confidence: 99%