Simple synthesis of Cu2O–CoO nanoplates with enhanced catalytic activity for hydrogen production from ammonia borane hydrolysis

Feng, Yufa; Wang, Huize; Chen, Xiao; Lv, Fei; Li, Yuanzhong; Zhu, Yongmei; Xu, Chujia; Zhang, Xibin; Liu, Huiru; Li, Hao

doi:10.1016/j.ijhydene.2020.04.257

Cited by 42 publications

(15 citation statements)

References 50 publications

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“…38 The positions of 961.8 eV, 943.1 eV and 940.5 eV represent the satellite peaks of Cu 2p. [39][40][41] These peaks are consistent with previous reports, 42 proving the existence of Cu 0 and Cu 2+ . The high-resolution spectrum of C 1s is shown in Fig.…”

Section: Characterization and Analysissupporting

confidence: 92%

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

Guan

Guo

Zhang

et al. 2022

Sustainable Energy Fuels

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Section: Characterization and Analysissupporting

confidence: 92%

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

Guan

Guo

Zhang

et al. 2022

Sustainable Energy Fuels

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“…Many reports have indicated that a hydrothermal treatment of Cu 2+ in basic solution will lead to the formation of CuO. , However, Cu 2 O rather than CuO was obtained in our work, which is due to the effect of ethanolamine. According to the literature, many −OH containing organics, such as glucose, ethanol, and sodium tartrate, can reduce Cu 2+ to Cu + in the solution, resulting in the formation of Cu 2 O. In this study, hydroxyl-containing ethanolamine is used as a complexing agent in the synthesis, leading to the formation of Cu 2 O.…”

Section: Results and Discussionmentioning

confidence: 97%

“…Later, several research groups discovered synergistic effects among different TMOs. For example, Feng et al found that Cu 2 O-CoO composites exhibit much improved AB hydrolysis catalytic activity relative to single Cu 2 O and CoO . Li et al discovered that neither CuO or NiO are active for AB hydrolysis, while CuO-NiO showed a high catalytic activity for the hydrolysis reaction, demonstrating the synergistic effect of CuO-NiO for AB hydrolysis .…”

Section: Introductionmentioning

confidence: 99%

“…For example, Feng et hydrolysis catalytic activity relative to single Cu 2 O and CoO. 19 Li et al discovered that neither CuO or NiO are active for AB hydrolysis, while CuO-NiO showed a high catalytic activity for the hydrolysis reaction, demonstrating the synergistic effect of CuO-NiO for AB hydrolysis. 20 Although significant progress has been made in this field, many issues regarding TMO composite catalysts in AB hydrolysis are not well-understood and some contradictory conclusions have been reached.…”

Section: Introductionmentioning

confidence: 99%

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CuO-Co₃O₄ Composite Nanoplatelets for Hydrolyzing Ammonia Borane

Liao

Feng

Zhang

et al. 2021

ACS Appl. Nano Mater.

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The development of cheap and high-performance catalysts for the hydrolysis of ammonia borane (AB) for hydrogen production is a hotspot in the field of nanocatalysis and hydrogen energy. In this paper, we report the simple synthesis of CuO-Co 3 O 4 composite nanoplatelets that were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The effects of the molar ratios of CuO to Co 3 O 4 in the composites and the calcination temperatures on the catalytic activity of the obtained products in AB hydrolysis were investigated. In addition, the active species of the catalysts and the synergy of the CuO-Co 3 O 4 nanoplatelets in AB were explored. It was determined that the turnover frequency of the CuO-Co 3 O 4 nanoplatelets can reach 33.4 min −1 . By incorporating CuO into Co 3 O 4 , the reducibility of the resultant CuO-Co 3 O 4 nanoplatelets was remarkably improved, leading to enhanced catalytic performance. The active species is the CoCu alloy formed on the surface of CuO-Co 3 O 4 by the coreduction of CuO and Co 3 O 4 with AB. These findings can help to better understand the catalytic behavior of oxide compositebased catalysts and the design of other inexpensive, high-performance catalysts.

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“…Recently, transition metal oxide hybrids, as a type of emerging high-performance catalyst for AB hydrolysis, have received a great deal of attention. For example, transition metal oxide hybrids, CuO−CoO, 27 CuO−NiO, 28 Cu 2 O−CoO 29 and CuO−NiO/Co 3 O 4 , 30 have been demonstrated to exhibit high activity in AB hydrolysis. In addition, synergistic effects have been observed among these transition metal oxides.…”

Section: Introductionmentioning

confidence: 99%

Sea-Urchin-like Hollow CuMoO₄–CoMoO₄ Hybrid Microspheres, a Noble-Metal-like Robust Catalyst for the Fast Hydrogen Production from Ammonia Borane

Feng

Shao

Chen

et al. 2021

ACS Appl. Energy Mater.

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Hollow micro-/nanostructures are an extremely important type of materials with many applications in different areas. In this work, we have prepared sea-urchin-like hollow CuMoO 4 −CoMoO 4 hybrid microspheres with numerous nanorods on the surface by a template-free approach. The possible formation mechanism for the hollow microstructures is proposed based on the experimental results. As catalysts in hydrolyzing ammonia borane (AB) for H 2 production, the hollow CuMoO 4 − CoMoO 4 hybrid microspheres exhibit ultrahigh catalytic performance with a turnover frequency of 104.7 mol hydrogen min −1 mol −1 cat , which is one of the most active noble-metal-free catalysts in the literature. The activity of the hollow microspheres is even higher than that of many noble-metal based catalysts. A remarkable synergistic effect is experimentally confirmed between CoMoO 4 and CuMoO 4 . The theoretical calculations demonstrate that the energy barrier in the rate-determining step of AB hydrolysis will significantly decrease in the presence of hybrid catalysts. These findings provide new insight into design of cheap hybrid catalysts with high performance toward AB hydrolysis.

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Simple synthesis of Cu2O–CoO nanoplates with enhanced catalytic activity for hydrogen production from ammonia borane hydrolysis

Cited by 42 publications

References 50 publications

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

CuO-Co₃O₄ Composite Nanoplatelets for Hydrolyzing Ammonia Borane

Sea-Urchin-like Hollow CuMoO₄–CoMoO₄ Hybrid Microspheres, a Noble-Metal-like Robust Catalyst for the Fast Hydrogen Production from Ammonia Borane

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Simple synthesis of Cu2O–CoO nanoplates with enhanced catalytic activity for hydrogen production from ammonia borane hydrolysis

Cited by 42 publications

References 50 publications

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

CuO-Co3O4 Composite Nanoplatelets for Hydrolyzing Ammonia Borane

Sea-Urchin-like Hollow CuMoO4–CoMoO4 Hybrid Microspheres, a Noble-Metal-like Robust Catalyst for the Fast Hydrogen Production from Ammonia Borane

Contact Info

Product

Resources

About

CuO-Co₃O₄ Composite Nanoplatelets for Hydrolyzing Ammonia Borane

Sea-Urchin-like Hollow CuMoO₄–CoMoO₄ Hybrid Microspheres, a Noble-Metal-like Robust Catalyst for the Fast Hydrogen Production from Ammonia Borane