Ruthenium coordinated with triphenylphosphine-hyper-crosslinked polymer: An efficient catalyst for hydrogen evolution reaction and hydrolysis of ammonia borane

Xu, Caili; Wang, Hua; Wang, Qi; Wang, Yi; Zhang, Yun; Fan, Guangyin

doi:10.1016/j.apsusc.2018.10.051

Cited by 52 publications

(26 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The HGR for AB hydrolysis increased with the elevation of reaction temperature, indicating the vital role of the reaction temperature in improving the catalytic activity of Rh/nano-DA. As a critical kinetic parameter, the activation energy (E a ) for Rh/nano-DA-catalyzed AB hydrolysis can be calculated on the basis of the Arrhenius equation (2) and the related Arrhenius plot (Figure 3f) [47,48]. Accordingly, the E a is determined to be 25.6 kJ mol −1 , which was lower than many previous results as shown in Table 1.…”

Section: Figure 1amentioning

confidence: 70%

See 1 more Smart Citation

Facile Fabrication of Rhodium/Nanodiamond Hybrid as Advanced Catalyst toward Hydrogen Production from Ammonia–Borane

Wen¹,

Wu²,

Fan³

2020

Catalysts

Self Cite

View full text Add to dashboard Cite

Hydrogen generation through ammonia–borane (AB) hydrolysis has been regarded as one of the most promising pathways to tap renewable green energy. The design and synthesis of highly effective catalysts toward hydrogen production from aqueous AB is of paramount significance. Here, the facile synthesis of Rh nanoparticles (NPs) immobilized on nanodiamond (nano-DA) and concomitant AB hydrolysis to produce hydrogen was successfully achieved. The in situ generated Rh/nano-DA exhibited excellent catalytic activity toward AB hydrolysis, with a high turnover frequency (TOF) value of 729.4 min−1 at 25 °C and a low activation energy of 25.6 kJ mol−1. Moreover, the catalyst could be reused four times. The unique properties of DA with abundant oxygen-containing groups enable the homogeneous distribution of small and surface-clean Rh NPs on the nano-DA surface, which can supply abundant accessible active sites for hydrogen evolution from AB hydrolysis. This study demonstrated that nano-DA can be applied as an ideal matrix to deposit efficient Rh nanocatalyst toward hydrogen evolution reaction.

show abstract

Section: Figure 1amentioning

confidence: 70%

“…Hydrogen is regarded as a clean fuel by virtue of its environmental friendliness, high density, and high energy content [1][2][3]. However, the lack of efficient strategies in the storage and release of hydrogen considerably restricts the large-scale applications.…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Rhodium/Nanodiamond Hybrid as Advanced Catalyst toward Hydrogen Production from Ammonia–Borane

Wen¹,

Wu²,

Fan³

2020

Catalysts

Self Cite

View full text Add to dashboard Cite

show abstract

“…HCPs get more attention in recent years due to their high BET specific surface area [1], made under mild reaction conditions [2], used nonprecious materials as catalyst [3] and wide applications [4–9], etc. The synthesis methods of HCPs include solvent knitting methods [10], Scholl coupling reaction [11], the knitting method with formaldehyde dimethyl acetal (FDA) [12], functional group reactions [2,13] and so on.…”

Section: Introductionmentioning

confidence: 99%

“…FDA was first used as cross-linker to knit aromatic building blocks [15]. Researchers used this method to knit triptycenes [16], triphenylphosphine [4], benzimidazole, 1,3,5-triphenylbenzene [17], carbazole [18], naphthol-based monomers [10] etc. with FDA to obtain various HCPs, which exhibited outstanding porous properties.…”

Section: Introductionmentioning

confidence: 99%

Carbazole-functionalized hyper-cross-linked polymers for CO₂ uptake based on Friedel–Crafts polymerization on 9-phenylcarbazole

Dai¹,

Li²,

Zou³

et al. 2019

Beilstein J. Org. Chem.

View full text Add to dashboard Cite

To systematically explore the effects of the synthesis conditions on the porosity of hyper-cross-linked polymers (HCPs), a series of 9-phenylcarbazole (9-PCz) HCPs (P1–P11) has been made by changing the molar ratio of cross-linker to monomer, the reaction temperature T 1, the used amount of catalyst and the concentration of reactants. Fourier transform infrared spectroscopy was utilized to characterize the structure of the obtained polymers. The TG analysis of the HCPs showed good thermal stability. More importantly, a comparative study on the porosity revealed that: the molar ratio of cross-linker to monomer was the main influence factor of the BET specific surface area. Increasing the reaction temperature T 1 or changing the used amount of catalyst could improve the total pore volume greatly but sacrificed a part of the BET specific surface area. Fortunately changing the concentration of reactants could remedy this situation. Slightly changing the concentration of reactants could simultaneously obtain a high surface area and a high total pore volume. The BET specific surface areas of P3 was up to 769 m2 g−1 with narrow pore size distribution and the CO2 adsorption capacity of P11 was up to 52.4 cm3 g−1 (273 K/1.00 bar).

show abstract

“…In recent years, a large number of supported metal catalysts including noble metal and non-noble metal, have been constructed for the hydrolysis of AB, among which Pt-based noble catalysts, as one of the most studied catalysts both in industrial and scientific fields, demonstrate more extraordinary catalytic performance than that of other metal catalysts for hydrolysis of AB [20][21][22][23][24][25][26][27]. However, the features of Pt with its high prices and limited reserves severely restrict its extensive utilization of Pt metal as the catalyst [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Production from Ammonia Borane over PtNi Alloy Nanoparticles Immobilized on Graphite Carbon Nitride

Zhang

Xiao

et al. 2019

Catalysts

View full text Add to dashboard Cite

Graphite carbon nitride (g-C 3 N 4 ) supported PtNi alloy nanoparticles (NPs) were fabricated via a facile and simple impregnation and chemical reduction method and explored their catalytic performance towards hydrogen evolution from ammonia borane (AB) hydrolysis dehydrogenation. Interestingly, the resultant Pt 0.5 Ni 0.5 /g-C 3 N 4 catalyst affords superior performance, including 100% conversion, 100% H 2 selectivity, yielding the extraordinary initial total turnover frequency (TOF) of 250.8 mol H2 min −1 (mol Pt ) −1 for hydrogen evolution from AB at 10 • C, a relatively low activation energy of 38.09 kJ mol −1 , and a remarkable reusability (at least 10 times), which surpass most of the noble metal heterogeneous catalysts. This notably improved activity is attributed to the charge interaction between PtNi NPs and g-C 3 N 4 support. Especially, the nitrogen-containing functional groups on g-C 3 N 4 , serving as the anchoring sites for PtNi NPs, may be beneficial for becoming a uniform distribution and decreasing the particle size for the NPs. Our work not only provides a cost-effective route for constructing high-performance catalysts towards the hydrogen evolution of AB but also prompts the utilization of g-C 3 N 4 in energy fields.

show abstract

Ruthenium coordinated with triphenylphosphine-hyper-crosslinked polymer: An efficient catalyst for hydrogen evolution reaction and hydrolysis of ammonia borane

Cited by 52 publications

References 63 publications

Facile Fabrication of Rhodium/Nanodiamond Hybrid as Advanced Catalyst toward Hydrogen Production from Ammonia–Borane

Facile Fabrication of Rhodium/Nanodiamond Hybrid as Advanced Catalyst toward Hydrogen Production from Ammonia–Borane

Carbazole-functionalized hyper-cross-linked polymers for CO₂ uptake based on Friedel–Crafts polymerization on 9-phenylcarbazole

Hydrogen Production from Ammonia Borane over PtNi Alloy Nanoparticles Immobilized on Graphite Carbon Nitride

Contact Info

Product

Resources

About

Ruthenium coordinated with triphenylphosphine-hyper-crosslinked polymer: An efficient catalyst for hydrogen evolution reaction and hydrolysis of ammonia borane

Cited by 52 publications

References 63 publications

Facile Fabrication of Rhodium/Nanodiamond Hybrid as Advanced Catalyst toward Hydrogen Production from Ammonia–Borane

Facile Fabrication of Rhodium/Nanodiamond Hybrid as Advanced Catalyst toward Hydrogen Production from Ammonia–Borane

Carbazole-functionalized hyper-cross-linked polymers for CO2 uptake based on Friedel–Crafts polymerization on 9-phenylcarbazole

Hydrogen Production from Ammonia Borane over PtNi Alloy Nanoparticles Immobilized on Graphite Carbon Nitride

Contact Info

Product

Resources

About

Carbazole-functionalized hyper-cross-linked polymers for CO₂ uptake based on Friedel–Crafts polymerization on 9-phenylcarbazole