PtNiAu trimetallic nanoalloys enabled by a digestive-assisted process as highly efficient catalyst for hydrogen generation

Kang, Jian; Chen, Ting-Wen; Zhang, Dongfeng; Guo, Lin

doi:10.1016/j.nanoen.2016.03.017

Cited by 90 publications

(55 citation statements)

References 51 publications

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“…Although the hydrolytic reaction is thermodynamically feasible in this technology, a proper catalyst is indispensable because hydrolytic dehydrogenation of AB cannot take place kinetically at room temperature. Noble‐metal‐based catalysts and Co‐based metal/alloy catalysts are two types of heterogeneous catalysts that have been extensively investigated in previous studies . Unfortunately, although their catalytic performance is high, noble‐metal‐based catalysts are too expensive, which is a big obstacle for their large‐scale applications.…”

Section: Comparison Of Tof Values For Some Non‐precious Metal Catalystsmentioning

confidence: 99%

“…Noble-metal-based catalysts and Co-based metal/alloy catalysts are two types of heterogeneous catalysts that have been extensively investigated in previous studies. [ [29][30][31][32][33][34][35] Unfortunately, although their catalytic performance is high, noble-metal-based catalysts are too expensive, which is a big obstacle for their large-scale applications. In contrast, Cobased metal/alloy catalysts are cost-effective, but their catalytic Yolk-shell structured micro/nano-sized materials have broad and important applications in different areas due to their unique spatial configurations.…”

Section: Doi: 101002/smll201805460mentioning

confidence: 99%

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A Simple and Scalable Route to Synthesize Co_xCu₁₋_xCo₂O₄@Co_yCu₁₋_yCo₂O₄ Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production

Lin

et al. 2019

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Yolk–shell structured micro/nano‐sized materials have broad and important applications in different areas due to their unique spatial configurations. In this study, yolk–shell structured Co3O4@Co3O4 is prepared using a simple and scalable hydrothermal reaction, followed by a calcination process. Then, CoxCu1−xCo2O4@CoyCu1−yCo2O4 microspheres are synthesized via adsorption and calcination processes using the as‐prepared Co3O4@Co3O4 as the precursor. A possible formation mechanism of the yolk–shell structures is proposed based on the characterization results, which is different from those of yolk–shell structures in previous study. For the first time, the catalytic activity of yolk–shell structured catalysts in ammonia borane (AB) hydrolysis is studied. It is discovered that the yolk–shell structured CoxCu1−xCo2O4@CoyCu1−yCo2O4 microspheres exhibit high performance with a turnover frequency (TOF) of 81.8 molhydrogen min−1 molcat−1. This is one of the highest TOF values reported for a noble‐metal‐free catalyst in the literature. Additionally, the yolk–shell structured CoxCu1−xCo2O4@CoyCu1−yCo2O4 microspheres are highly stable and reusable. These yolk–shell structured CoxCu1−xCo2O4@CoyCu1−yCo2O4 microsphere is a promising catalyst candidate in AB hydrolysis considering the excellent catalytic behavior and low cost.

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Section: Comparison Of Tof Values For Some Non‐precious Metal Catalystsmentioning

confidence: 99%

Section: Doi: 101002/smll201805460mentioning

confidence: 99%

A Simple and Scalable Route to Synthesize Co_xCu₁₋_xCo₂O₄@Co_yCu₁₋_yCo₂O₄ Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production

Lin

et al. 2019

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“…Therefore it is considered as one of the most leading contender in promising chemical hydrogen-storage materials for various applications. [5][6][7][8][9][10][11][12][13][14][15] Until now, effective catalysts for hydrolysis of AB are typically based on expensive and rare noble metal nanocatalysts (e.g., Rh, Pt, Ru). Considerable efforts have been devoted to the design of high-performance noble metal-free nanocatalysts, [16][17][18][19][20][21][22][23][24][25] On the other hand, the hydrolysis of AB under mild conditions by cheap and earth-abundant first row metal nanoparticles (Fe, Co, Ni and Cu, "BM") with practical efficiency and sustainability remains extremely challenging, largely due to their labile nature, complex mechanistic manifolds and low catalytic efficiencies.…”

Section: Introductionmentioning

confidence: 99%

Hydrolysis of Ammonia-Borane over Ni/ZIF-8 Nanocatalyst: High Efficiency, Mechanism, and Controlled Hydrogen Release

et al. 2017

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Non-noble metal nanoparticles are notoriously difficult to prepare and stabilize with appropriate dispersion, which in turn severely limits their catalytic functions. Here, using zeolitic imidazolate framework (ZIF-8) as MOF template, catalytically remarkably efficient ligand-free first-row late transition-metal nanoparticles are prepared and compared. Upon scrutiny of the catalytic principles in the hydrolysis of ammonia-borane, the highest total turnover frequency among these first-row late transition metals is achieved for the templated Ni nanoparticles with 85.7 mol mol min at room temperature, which overtakes performances of previous non-noble metal nanoparticles systems, and is even better than some noble metal nanoparticles systems. Mechanistic studies especially using kinetic isotope effects show that cleavage by oxidative addition of an O-H bond in HO is the rate-determining step in this reaction. Inspired by these mechanistic studies, an attractive and effective "on-off" control of hydrogen production is further proposed.

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“…However, the high cost of these catalysts hinders their industrial applications. Although their cost can be slightly reduced by alloying the noble metal with cheaper metals, such as Cu and Co [14,15], the resulted alloy catalysts is still not costeffective. The second group is the noble-metal-free catalysts, such as Co [16], Ni [17] and their alloys [18,19].…”

Section: Introductionmentioning

confidence: 99%

Ca0.5Mg0.5Co2O4 Nanosheets Comprised of Nanoparticles, Synthesis, Characterization and their Catalytic Activity in the Hydrolysis of Ammonia Borane for Hydrogen Production

Li¹,

Feng²,

Liao³

et al. 2018

Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)

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Abstract-Catalytic hydrolytic reaction of ammonia borane (AB) is regarded as safe and efficient way to produce hydrogen. However, the development of heterogeneous catalysts with both high catalytic performance and low cost for this hydrolytic reaction is still a great challenge. In this work, we have developed a novel catalyst for the hydrolysis of ammonia borane, Ca 0.5 Mg 0.5 Co 2 O 4 nanosheets composed of nanoparticles, which was characterized by X-ray powder diffractometer, field emission scanning electron microscope, transmission electron microscope, and volumetric analyzer. In the AB hydrolysis, the hydrogen production rate will increase as the increase the NaOH dosage. At NaOH dosage of 1.6 g, the turnover frequency is 4.8 mol hydrogen min -1 mol cat -1 . It is also found that a high catalyst dosage and a high reaction temperature are favorable for the fast hydrogen release from AB solution.

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PtNiAu trimetallic nanoalloys enabled by a digestive-assisted process as highly efficient catalyst for hydrogen generation

Cited by 90 publications

References 51 publications

A Simple and Scalable Route to Synthesize Co_xCu₁₋_xCo₂O₄@Co_yCu₁₋_yCo₂O₄ Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production

A Simple and Scalable Route to Synthesize Co_xCu₁₋_xCo₂O₄@Co_yCu₁₋_yCo₂O₄ Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production

Hydrolysis of Ammonia-Borane over Ni/ZIF-8 Nanocatalyst: High Efficiency, Mechanism, and Controlled Hydrogen Release

Ca0.5Mg0.5Co2O4 Nanosheets Comprised of Nanoparticles, Synthesis, Characterization and their Catalytic Activity in the Hydrolysis of Ammonia Borane for Hydrogen Production

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PtNiAu trimetallic nanoalloys enabled by a digestive-assisted process as highly efficient catalyst for hydrogen generation

Cited by 90 publications

References 51 publications

A Simple and Scalable Route to Synthesize CoxCu1−xCo2O4@CoyCu1−yCo2O4 Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production

A Simple and Scalable Route to Synthesize CoxCu1−xCo2O4@CoyCu1−yCo2O4 Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production

Hydrolysis of Ammonia-Borane over Ni/ZIF-8 Nanocatalyst: High Efficiency, Mechanism, and Controlled Hydrogen Release

Ca0.5Mg0.5Co2O4 Nanosheets Comprised of Nanoparticles, Synthesis, Characterization and their Catalytic Activity in the Hydrolysis of Ammonia Borane for Hydrogen Production

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A Simple and Scalable Route to Synthesize Co_xCu₁₋_xCo₂O₄@Co_yCu₁₋_yCo₂O₄ Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production

A Simple and Scalable Route to Synthesize Co_xCu₁₋_xCo₂O₄@Co_yCu₁₋_yCo₂O₄ Yolk–Shell Microspheres, A High‐Performance Catalyst to Hydrolyze Ammonia Borane for Hydrogen Production