Cu(OH)2 supported on Fe(OH)3 as a synergistic and highly efficient system for the dehydrogenation of ammonia-borane

Peng, Cheng‐Yun; Hou, Chun‐Chao; Chen, Qianqian; Wang, Chuan-Jun; Lv, Xiaojun; Zhong, Jun; Fu, Wen‐Fu; Che, Chi‐Ming; Chen, Yong

doi:10.1016/j.scib.2018.11.003

Cited by 39 publications

(23 citation statements)

References 49 publications

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“…XRD can be used to determine the crystal structure of the synthesiz ure 3 presents the corresponding XRD patterns of Cu mesh, Cu mesh/C and Cu mesh/Cu(OH)2@HKUST-1 nanorods. It is clear that all the charac peaks of crystal products match well with the peaks of Cu, Cu(OH)2 an diffraction pattern shows peaks at 43.30°, corresponding to (111) of Cu diffraction pattern shows peaks at 35.55°, 36.55° and 38.85°, correspond and (130) of Cu(OH)2 (JCPDS) [40]. It also shows the relative peak in 13.75° and 18.05° of cubic HKUST-1, corresponding to the (220), (400) [41], respectively.…”

Section: Resultssupporting

confidence: 52%

“…The diffraction pattern shows peaks at 43.30 • , corresponding to (111) of Cu (JCPDS) [39]. The diffraction pattern shows peaks at 35.55 • , 36.55 • and 38.85 • , corresponding to (002), ( 111) and (130) of Cu(OH) 2 (JCPDS) [40]. It also shows the relative peak intensities of 9.05 • , 13.75 • and 18.05 • of cubic HKUST-1, corresponding to the (220), ( 400) and (333) lattices [41], respectively.…”

Section: Resultsmentioning

confidence: 99%

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Fabrication of Au-Nanoparticle-Decorated Cu Mesh/Cu(OH)2@HKUST-1 Nanorod Arrays and Their Applications in Surface-Enhanced Raman Scattering

et al. 2021

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Here we report a simple fabrication method for large-scale hybrid surface-enhanced Raman scattering (SERS) active substrates composed of Au-nanoparticle-decorated three-dimensional (3D) Cu(OH)2@HKUST-1 (Cu3(btc)2, H3btc = 1,3,5-benzenetricarboxylic acid) nanorod arrays on a woven Cu mesh (Cu mesh/Cu(OH)2@HKUST-1@Au). Cu(OH)2 nanorods were first obtained from a simple in situ chemical engraving Cu mesh and then utilized as self-sacrificing templates to achieve HKUST-1 nanocube-assembled nanorods; finally, Au nanoparticles (Au NPs) were sputtered onto the Cu(OH)2@HKUST-1 nanorods. Due to the large surface area, the three-dimensional Cu mesh/Cu(OH)2@HKUST-1 nanorods could load high-density Au NPs and capture target detection molecules, which is beneficial to the formation of a strong electromagnetic field coupling between Au NPs, and provides abundant “hot spots” for a sensitive and uniform SERS effect. Using the Cu mesh/Cu(OH)2@HKUST-1@Au nanorod arrays as the SERS substrate, 10−9 M Rhodamine 6G and 10−8 M 4-aminothiophenolcan were identified. To verify their practical application, the fabricated arrays were employed as SERS substrates for the detection of thiram, and 10−8 M thiram could be recognized. The hybrid SERS substrates show potential applications in the field of environmental pollutant detection and this is of great significance to the sustainable development of the environment.

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Section: Resultssupporting

confidence: 52%

Section: Resultsmentioning

confidence: 99%

Fabrication of Au-Nanoparticle-Decorated Cu Mesh/Cu(OH)2@HKUST-1 Nanorod Arrays and Their Applications in Surface-Enhanced Raman Scattering

et al. 2021

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“…Finally, Cu(OH) 2 exhibits a peak at approx. 300 cm −1 and a main peak at 490 cm −1 [79,[81][82][83][84]. These values were used to identify possible changes in the chemical composition of the surface due to transition between copper species.…”

Section: Evaluation Of Surface Propertiesmentioning

confidence: 99%

Hydrophilic and Hydrophobic Nanostructured Copper Surfaces for Efficient Pool Boiling Heat Transfer with Water, Water/Butanol Mixtures and Novec 649

et al. 2021

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Increasing heat dissipation requirements of small and miniature devices demands advanced cooling methods, such as application of immersion cooling via boiling heat transfer. In this study, functionalized copper surfaces for enhanced heat transfer are developed and evaluated. Samples are functionalized using a chemical oxidation treatment with subsequent hydrophobization of selected surfaces with a fluorinated silane. Pool boiling tests with water, water/1-butanol mixture with self-rewetting properties and a novel dielectric fluid with low GWP (Novec™ 649) are conducted to evaluate the boiling performance of individual surfaces. The results show that hydrophobized functionalized surfaces covered by microcavities with diameters between 40 nm and 2 µm exhibit increased heat transfer coefficient (HTC; enhancements up to 120%) and critical heat flux (CHF; enhancements up to 64%) values in comparison with the untreated reference surface, complemented by favorable fabrication repeatability. Positive surface stability is observed in contact with water, while both the self-rewetting fluids and Novec™ 649 gradually degrade the boiling performance and in some cases also the surface itself. The use of water/1-butanol mixtures in particular results in surface chemistry and morphology changes, as observed using SEM imaging and Raman spectroscopy. This seems to be neglected in the available literature and should be focused on in further studies.

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“…Very recently, Peng et al have tested the catalytic activity of the Cu(OH) 2 /Fe(OH) 3 nanocomposite in AB hydrolysis and they find the corresponding TOF can reach 50.3 mol hydrogen mol cat -1 min -1 , which is superior to those of previously reported Fe or Cu based systems. 24 It seems to be a feasible way to improve the catalytic activity by compositing different transitional metal oxides or hydroxides. However, what is the role of the each component of the composite in AB hydrolysis?…”

Section: Introductionmentioning

confidence: 99%

Co₃O₄/CuMoO₄ Hybrid Microflowers Composed of Nanorods with Rich Particle Boundaries as a Highly Active Catalyst for Ammonia Borane Hydrolysis

Liao

et al. 2019

ACS Sustainable Chem. Eng.

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Dehydrogenation of ammonia borane (AB) is a promising approach for the production and use of hydrogen for industrial and fuel cell applications. The development of low-cost and highly active catalysts is critical for these practical applications. In this study, low-cost Co 3 O 4 /CuMoO 4 hybrid microflowers composed of nanorods with rich particle boundaries were synthesized. Co 3 O 4 /CuMoO 4 was used as a catalyst for the dehydrogenation of AB and showed a high catalytic activity with a turnover frequency (TOF) of 129.15 mol hydrogen mol cat-1 min-1 at room temperature. The apparent activation energy (Ea) of the catalyst was found to be as low as 23.2 kJ mol-1. It was revealed that the synergistic effect between Co 3 O 4 and CuMoO 4 played a critical role in improving the catalytic activity. Co 3 O 4 is relatively active, but a long induction time is needed when it acts as a catalyst in AB hydrolysis. In contrast, CuMoO 4 is less active, but it can immediately catalytically initiate the hydrolytic reaction. When these two compound are combined as a hybrid catalyst, its catalytic performance is significantly improved. These findings can provide Page 1 of 24 ACS Paragon Plus Environment ACS Sustainable Chemistry & Engineering 2 some new insight for those who are trying to design some noble-metal-free hybrid catalyst with high catalytic activity towards AB hydrolysis.

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Cu(OH)2 supported on Fe(OH)3 as a synergistic and highly efficient system for the dehydrogenation of ammonia-borane

Cited by 39 publications

References 49 publications

Fabrication of Au-Nanoparticle-Decorated Cu Mesh/Cu(OH)2@HKUST-1 Nanorod Arrays and Their Applications in Surface-Enhanced Raman Scattering

Fabrication of Au-Nanoparticle-Decorated Cu Mesh/Cu(OH)2@HKUST-1 Nanorod Arrays and Their Applications in Surface-Enhanced Raman Scattering

Hydrophilic and Hydrophobic Nanostructured Copper Surfaces for Efficient Pool Boiling Heat Transfer with Water, Water/Butanol Mixtures and Novec 649

Co₃O₄/CuMoO₄ Hybrid Microflowers Composed of Nanorods with Rich Particle Boundaries as a Highly Active Catalyst for Ammonia Borane Hydrolysis

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Cu(OH)2 supported on Fe(OH)3 as a synergistic and highly efficient system for the dehydrogenation of ammonia-borane

Cited by 39 publications

References 49 publications

Fabrication of Au-Nanoparticle-Decorated Cu Mesh/Cu(OH)2@HKUST-1 Nanorod Arrays and Their Applications in Surface-Enhanced Raman Scattering

Fabrication of Au-Nanoparticle-Decorated Cu Mesh/Cu(OH)2@HKUST-1 Nanorod Arrays and Their Applications in Surface-Enhanced Raman Scattering

Hydrophilic and Hydrophobic Nanostructured Copper Surfaces for Efficient Pool Boiling Heat Transfer with Water, Water/Butanol Mixtures and Novec 649

Co3O4/CuMoO4 Hybrid Microflowers Composed of Nanorods with Rich Particle Boundaries as a Highly Active Catalyst for Ammonia Borane Hydrolysis

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Co₃O₄/CuMoO₄ Hybrid Microflowers Composed of Nanorods with Rich Particle Boundaries as a Highly Active Catalyst for Ammonia Borane Hydrolysis