Robust enhanced hydrogen production at acidic conditions over molybdenum oxides-stabilized ultrafine palladium electrocatalysts

Ji, Sun; Zhang, Xian; Jin, Meng; Xiong, Qizhong; Wang, Guozhong; Zhang, Haimin; Zhao, Huijun

doi:10.1007/s12274-020-3083-3

Cited by 26 publications

(18 citation statements)

References 43 publications

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“…3b). 16 Notably, the Fe-WB 2 /CC electrode displays a lower Tafel slope of 45.8 mV dec −1 than that of the WB 2 /CC electrode (198.5 mV dec −1 ), suggesting its faster HER kinetic activity. In addition, the electrochemical impedance spectroscopy (EIS) plots (Fig.…”

Section: Resultsmentioning

confidence: 94%

Iron covalent doping in WB₂ to boost its hydrogen evolution activity

Jin

Liu

Wang

et al. 2022

Inorg. Chem. Front.

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Section: Resultsmentioning

confidence: 94%

Iron covalent doping in WB₂ to boost its hydrogen evolution activity

Jin

Liu

Wang

et al. 2022

Inorg. Chem. Front.

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“…A palladium nanoparticle catalyst stabilized with molybdenum oxides (MoO x -Pd) are in situ prepared on commercial carbon cloth (CC) via a two-step method of dip-coating and electrochemical reduction. 36 The synthesized catalyst is superior to unmodified Pd catalysts and comparable to commercial Pt mesh electrodes. The presence of MoO x inhibits the growth of Pd particles and provides more available active sites.…”

Section: Photoassisted Hydrogen Evolutionmentioning

confidence: 91%

“…However, the development of highly efficient, durable, and cheap catalysts for the hydrogen evolution reaction (HER) is very challenging. A palladium nanoparticle catalyst stabilized with molybdenum oxides (MoO x -Pd) are in situ prepared on commercial carbon cloth (CC) via a two-step method of dip-coating and electrochemical reduction . The synthesized catalyst is superior to unmodified Pd catalysts and comparable to commercial Pt mesh electrodes.…”

Section: Photoassisted Hydrogen Evolution Processesmentioning

confidence: 99%

“…Research on non-platinum-based electrocatalysts with excellent catalytic properties has been recommended to fulfill the requirements of practical application, specifically outstanding performance during hydrogen generation and competitive durability in the acidic medium. 36 Pd has lower hydrogen production performance since it has stronger hydrogen adsorption than Pt. Therefore, the electronic structure of Pd is regulated to reduce its hydrogen adsorption and, consequently, enhance the catalytic performance.…”

Section: Photoassisted Hydrogen Evolutionmentioning

confidence: 99%

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Review on Solar Hydrogen: Its Prospects and Limitations

Dutta

2021

Energy Fuels

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Clean and green energy has become very much desirable in recent times to mitigate the environmental problem associated with fossil fuels. Hydrogen can be utilized as sustainable energy resources whenever it is produced via green routes. Hydrogen production using solar energy is a pollution-free route as the carbon footprint is zero or significantly less than other hydrogen-generation methods. This review elucidates various hydrogen-generation routes using solar energy as the primary energy resource. Both thermal and photoassisted routes are incorporated in this review. It is found that solar photovoltaic cell associated with water electrolyzer is very popular. Biomass can also be converted to hydrogen through thermal and photoassisted processes. The economic analysis confirmed that hydrogen-fueled cars are economical as well as environmentally friendly.

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“…19 A suitable solution for the consistent performance of the membrane for longer lifetime requires alloying Pd with other metals to eliminate or minimize the drawbacks witnessed using pure Pd membranes. 14 For this reason, Pd can be alloyed with other metals such as copper, 20 gold, 21 nickel, 22 silver, 23 titanium, 24 platinum, 25 tungsten, 26 indium, 27 rhenium, 28 yttrium, 29 cerium, 30 molybdenum, 31 ruthenium, 32 rhodium, 33 etc. When Pd is alloyed with these metals, its critical temperature for formation of Pd hydride is reduced.…”

Section: General Properties Of Palladium and Its Alloysmentioning

confidence: 99%

Palladium-Alloy Membrane Reactors for Fuel Reforming and Hydrogen Production: A Review

et al. 2021

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Hydrogen has a potential to be a clean energy carrier that emits only water after combustion and can be produced from diverse feedstocks. Hydrogen has much better combustion characteristics in conventional combustion systems and higher energy efficiency when used with fuel cells. More than 75 million tons of hydrogen are currently produced primarily using fossil fuels as feedstock via steam methane reforming processes. Steam methane reforming is the mature technology for producing hydrogen and when coupled with CO2 capture can help address climate challenges. Inorganic palladium (Pd) membranes have demonstrated great potential to separate hydrogen due to their stability and high selectivity for hydrogen. In this review, several methods of fabricating Pd-alloy membranes are discussed and compared in terms of membrane stability and selectivity of hydrogen. Such methods include electroless plating (ELP), chemical vapor deposition (CVD), physical vapor deposition (PVD), and electroplating deposition (EPD). The permeability of hydrogen in different Pd-based alloy membranes are presented and compared. Focus has been made, in this review, on Pd–Ag, Pd–Cu, Pd–Au, and Pd–Ru alloys. The effects of impurities (H2S, CO, O2, and CO2) on performance of different Pd-based alloy membranes are also investigated. Moreover, the subject of using Pd-membrane reactors for fuel reforming and H2 production is investigated in detail based on numerous experimental and numerical studies in the literature, considering different membrane reactor designs: axial-flow tubular, radial-flow tubular, axial-flow spherical, packed-bed, fluidized bed, and slurry bubble column. The performance of Pd-membranes in such reactors for hydrogen production is compared, and the effects of temperature, pressure, H2O/CH4 ratio, and residence time on reformer performance are also investigated. Finally, the use of computational methods, particularly, density functional theory (DFT), to complement well-established experimental methods for studying the diffusion of H and its isotopes in different metals is reviewed. The review concludes with some insights into future work to bring Pd-membrane reactors to the level required for hydrogen production at the commercial level.

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Robust enhanced hydrogen production at acidic conditions over molybdenum oxides-stabilized ultrafine palladium electrocatalysts

Cited by 26 publications

References 43 publications

Iron covalent doping in WB₂ to boost its hydrogen evolution activity

Iron covalent doping in WB₂ to boost its hydrogen evolution activity

Review on Solar Hydrogen: Its Prospects and Limitations

Palladium-Alloy Membrane Reactors for Fuel Reforming and Hydrogen Production: A Review

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Robust enhanced hydrogen production at acidic conditions over molybdenum oxides-stabilized ultrafine palladium electrocatalysts

Cited by 26 publications

References 43 publications

Iron covalent doping in WB2 to boost its hydrogen evolution activity

Iron covalent doping in WB2 to boost its hydrogen evolution activity

Review on Solar Hydrogen: Its Prospects and Limitations

Palladium-Alloy Membrane Reactors for Fuel Reforming and Hydrogen Production: A Review

Contact Info

Product

Resources

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Iron covalent doping in WB₂ to boost its hydrogen evolution activity

Iron covalent doping in WB₂ to boost its hydrogen evolution activity