Size-controllable synthesis and high-performance formic acid oxidation of polycrystalline Pd nanoparticles

Zhang, Jinfeng; Chen, Zelin; Zhang, Mengmeng; Han, Xiaopeng; Zhong, Cheng; Deng, Yida; Hu, Wenbin

doi:10.1007/s12598-017-0947-0

Cited by 19 publications

(5 citation statements)

References 36 publications

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“…The compound of Pd with ZrO 2 induces significant enhanced desorption peaks at 676 °C, suggesting stronger basic sites in the Pd-ZrO 2 composite. The much higher density of surface basic sites has been proved to be a key factor for achieving high activity in dehydrogenation reaction. , According to the aforementioned XPS and CO 2 -TPD results, the SMSI effect between Pd-ZrO 2 NPs and SBA-15-NH 2 substrate and the cooperation of Pd and ZrO 2 lead to the electron-rich metallic Pd and stronger basic sites in the Pd-ZrO 2 /SBA-15-NH 2 catalyst, which leads to split of the C-H bond and the deprotonation of FA, accelerating the dehydrogenation of FA. ,,,− …”

Section: Resultsmentioning

confidence: 99%

Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO₂ Nanoparticles at Room Temperature

Luo

Nie

Ding

et al. 2021

ACS Appl. Energy Mater.

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Hydrogen (H 2 ) is becoming the most promising candidate for the future sustainable energy systems because it is clean and regenerable. Formic acid (FA, HCOOH), one of the high-value products of the biological metabolic process and the reduction of carbon dioxide (CO 2 ), is considered to be the most efficient hydrogen supplier because it is nontoxic and easy to store and transport and has high hydrogen content. Herein, Pd-ZrO 2 nanoparticles (NPs) immobilized in amine-modified mesoporous silica (Pd-ZrO 2 /SBA-15-NH 2 ) with ultrasmall particle size (1.5 nm) and high dispersion are successfully prepared and applied as an effective catalyst toward the additive-free dehydrogenation of FA at ambient conditions. As a result of the synergistic electronic effects of Pd and ZrO 2 , the strong interaction between the Pd-ZrO 2 NPs and SBA-15-NH 2 substrates and the abundant basic sites originated from ZrO 2 and −NH 2 groups, the as-prepared Pd-ZrO 2 / SBA-15-NH 2 catalyst possesses 100% hydrogen selectivity as well as unexpected catalytic performance with a high turnover frequency value of 1408 h −1 toward CO-free hydrogen production from FA at 298 K, which is even better than most of the effective Pd-based heterogeneous catalysts ever reported. This work offers insights into the facile and controllable synthesis strategy of metal-MO x /support systems for high-efficiency dehydrogenation of chemical hydrides.

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Section: Resultsmentioning

confidence: 99%

Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO₂ Nanoparticles at Room Temperature

Luo

Nie

Ding

et al. 2021

ACS Appl. Energy Mater.

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“…[ 9 ] Compared with platinum (Pt)‐based catalysts, palladium (Pd) and Pd‐based materials are regarded as more promising candidates due to the merits of robust electrocatalytic activity, low cost, and high resistance to CO intermediates. [ 9,10 ] Tremendous efforts have been devoted to develop alloying catalysts, [ 11,12 ] add supporting material, [ 13,14 ] and new nanostructure, [ 15–17 ] to enhance the activity of Pd‐based electrocatalysts. However, the investigation on gas products management during FAO process on the electrode surface received limited attention.…”

Section: Introductionmentioning

confidence: 99%

Novel Superaerophobic Anode with Fern‐Shaped Pd Nanoarray for High‐Performance Direct Formic Acid Fuel Cell

Yuan

Yang

Zhu

et al. 2022

Adv Funct Materials

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Direct formic acid fuel cells (DFAFCs) possess the advantages of high power density and theoretical cell potential. Exploring robust catalysts for electrochemical formic acid electro-oxidation (FAO) is greatly essential for the wide spread uptake of DFAFCs. However, many electrodes with attractive catalysts suffer limited mass transport due to sluggish CO 2 bubble growth and departure steps on its surface. In this study, a superaerophobic electrode is developed by depositing fern-shaped palladium nanostructured arrays on the carbon paper (Pd-nanoarray@CP). Its unique superaerophobic feature successfully facilitates the CO 2 bubble releasing from the catalyst surface in a significantly small size. With the merits of specific nanoarray morphology, superior under water superaerophobicity, and rapid gas bubble release, the Pd-nanoarray@CP shows fast charge/mass transport rate, high electrocatalytic activity, and great stability for FAO. A direct formic acid fuel cell equipped with the Pd-nanoarray@CP anode is successfully fabricated on a microfluidic platform. A peak power density of 35.8 mW cm −2 and limiting current density of 173.3 mA cm −2 are obtained, respectively, which are 49.2% and 33.0% higher than that of conventional Pd-black anodes. The electrode with superaerophobic interface allows deeper insight into the mechanism of FAO efficiency and holds promise for possible applications of commercially viable DFAFCs.

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“…22 A lot of work has been done to boost the activity of Pd-based electrocatalysts by the formation of alloy, modication of support material and building unique nanostructures. 21,[23][24][25] Bimetallic palladium based nanocatalysts such as PdNi, PdAu, PdGa, PdCu, and PdRu have shown improved activities compared to palladium nanoparticles (Pt/C). The incorporation of another metal enhanced the electrocatalytic capabilities of the material towards formic acid oxidation reaction.…”

Section: Introductionmentioning

confidence: 99%

Pronounced effect of yttrium oxide on the activity of Pd/rGO electrocatalyst for formic acid oxidation reaction

et al. 2023

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Size-controllable synthesis and high-performance formic acid oxidation of polycrystalline Pd nanoparticles

Cited by 19 publications

References 36 publications

Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO₂ Nanoparticles at Room Temperature

Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO₂ Nanoparticles at Room Temperature

Novel Superaerophobic Anode with Fern‐Shaped Pd Nanoarray for High‐Performance Direct Formic Acid Fuel Cell

Pronounced effect of yttrium oxide on the activity of Pd/rGO electrocatalyst for formic acid oxidation reaction

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Size-controllable synthesis and high-performance formic acid oxidation of polycrystalline Pd nanoparticles

Cited by 19 publications

References 36 publications

Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO2 Nanoparticles at Room Temperature

Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO2 Nanoparticles at Room Temperature

Novel Superaerophobic Anode with Fern‐Shaped Pd Nanoarray for High‐Performance Direct Formic Acid Fuel Cell

Pronounced effect of yttrium oxide on the activity of Pd/rGO electrocatalyst for formic acid oxidation reaction

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Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO₂ Nanoparticles at Room Temperature

Robust Hydrogen Production from Additive-Free Formic Acid via Mesoporous Silica-Confined Pd-ZrO₂ Nanoparticles at Room Temperature