Au@Cu2O core@shell nanocrystals as sustainable catalysts for efficient hydrogen production from ammonia borane

Fang, Mei-Jing; Lin, Yih-Chuan; Jan, Jen-Yu; Lai, Ting-Hsuan; Hsieh, Ping‐Yen; Kuo, Ming-Yu; Chiu, Yi Hsuan; Tsao, Chun-Wen; Chen, Yi‐An; Wang, Yuting; Hong, Yi-Jia; Wu, Jhen-Yang; Wu, Yu Mao; Lin, Yan‐Gu; Chang, Tso-Fu Mark; Chen, Chun-Yi; Sone, Masato; Chang, Sue-min; Chang, Chung‐Liang; Hsu, Yen‐Chu

doi:10.1016/j.apcatb.2022.122198

Cited by 25 publications

(5 citation statements)

References 80 publications

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“…While Ni 2 P/NF is polar in nature, Pt NP From the XPS analysis, the increase in binding energy by loading Pt NPs over the self-supported Ni 2 P confirms that electrons are accumulated on Pt, making it possible to extract activated H from water (Scheme 2). 45 3.5. Comparative Study.…”

Section: Kinetics Of Pt@ni 2 P/nfmentioning

confidence: 93%

Self-Supported Pt@Ni₂P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis

Asim

Maryam

Liu

et al. 2023

Ind. Eng. Chem. Res.

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The chemical storage of hydrogen is well accomplished by ammonia borane. However, a significant barrier to utilizing ammonia borane practically is developing extraordinarily effective and inexpensive catalysts that propel hydrogen evolution from it. In this work, the catalyst Pt@Ni 2 P/nickel foam (NF) is synthesized by embedding platinum (Pt) nanoparticles over self-supported Ni 2 P/NF. Pt@Ni 2 P/NF enables a high synergetic effect between Pt nanoparticles and Ni 2 P/NF, boosting the hydrolysis of ammonia borane. The catalyst Pt@Ni 2 P/NF activity enriches 3.0-fold compared to Ni 2 P/NF and 25.5-fold compared to pristine Ni 2 P. X-ray photoelectron spectroscope analysis reveals that embedding Pt nanoparticles over self-supported Ni 2 P generates a strong interaction between (Ni 2 P/NF) δ+ and (Pt) δ− . The chemical kinetic results reveal that the activation energy and turnover frequency of Pt@Ni 2 P/NF are calculated to be 31.0 kJ mol −1 and 63.2 min −1 for 0.13 M AB. This study demonstrates a reliable method used to develop active sites of (Ni 2 P) δ+ and (Pt) δ− for ammonia-borane hydrolysis. The controllable hydrogen release and facile on/off characteristic of the catalyst demonstrate a feasible way to boost the catalytic performance by constructing a two-dimensional (2D) structure.

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Section: Kinetics Of Pt@ni 2 P/nfmentioning

confidence: 93%

Self-Supported Pt@Ni₂P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis

Asim

Maryam

Liu

et al. 2023

Ind. Eng. Chem. Res.

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“…A chemical reduction method was used to prepare the Au@Cu 2 O core@shell nanocrystal template 24 , 25 . First, Au colloids (0.25 mM) were synthesized using the citrate reduction method.…”

Section: Methodsmentioning

confidence: 99%

Dual-plasmonic Au@Cu7S4 yolk@shell nanocrystals for photocatalytic hydrogen production across visible to near infrared spectral region

Tsao,

Narra,

Kao

et al. 2024

Nat Commun

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Near infrared energy remains untapped toward the maneuvering of entire solar spectrum harvesting for fulfilling the nuts and bolts of solar hydrogen production. We report the use of Au@Cu7S4 yolk@shell nanocrystals as dual-plasmonic photocatalysts to achieve remarkable hydrogen production under visible and near infrared illumination. Ultrafast spectroscopic data reveal the prevalence of long-lived charge separation states for Au@Cu7S4 under both visible and near infrared excitation. Combined with the advantageous features of yolk@shell nanostructures, Au@Cu7S4 achieves a peak quantum yield of 9.4% at 500 nm and a record-breaking quantum yield of 7.3% at 2200 nm for hydrogen production in the absence of additional co-catalysts. The design of a sustainable visible- and near infrared-responsive photocatalytic system is expected to inspire further widespread applications in solar fuel generation. In this work, the feasibility of exploiting the localized surface plasmon resonance property of self-doped, nonstoichiometric semiconductor nanocrystals for the realization of wide-spectrum-driven photocatalysis is highlighted.

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“…42,43 A wide range of materials has been employed in the construction of electrocatalysts featuring core–shell nanostructures, including, but not limited to, the deposition of metallic shells on alloys, metal phosphides, or carbon layers on metals. 44–47 For example, the introduction of MnO 2 nanosheets onto CuO nanowires enhances the exposure of active sites and facilitates mass transfer. More importantly, the CuO/MnO 2 heterogeneous nanointerface provides a well-designed built-in electric field within the interfacial region, which promotes the adsorption of intermediates and accelerates the kinetics of nitrate electroreduction.…”

Section: Constructing Strategies and Special Effects Of The Hetero-in...mentioning

confidence: 99%

Engineering interfacial architectures toward nitrate electrocatalysis and nitrogen neutral cycle

Gu,

Luo,

Zhang

et al. 2024

Mater. Chem. Front.

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Au@Cu2O core@shell nanocrystals as sustainable catalysts for efficient hydrogen production from ammonia borane

Cited by 25 publications

References 80 publications

Self-Supported Pt@Ni₂P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis

Self-Supported Pt@Ni₂P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis

Dual-plasmonic Au@Cu7S4 yolk@shell nanocrystals for photocatalytic hydrogen production across visible to near infrared spectral region

Engineering interfacial architectures toward nitrate electrocatalysis and nitrogen neutral cycle

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Au@Cu2O core@shell nanocrystals as sustainable catalysts for efficient hydrogen production from ammonia borane

Cited by 25 publications

References 80 publications

Self-Supported Pt@Ni2P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis

Self-Supported Pt@Ni2P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis

Dual-plasmonic Au@Cu7S4 yolk@shell nanocrystals for photocatalytic hydrogen production across visible to near infrared spectral region

Engineering interfacial architectures toward nitrate electrocatalysis and nitrogen neutral cycle

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Product

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Self-Supported Pt@Ni₂P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis

Self-Supported Pt@Ni₂P for Controllable Hydrogen Release from Ammonia-Borane Hydrolysis