Exceptionally stable green rust, a mixed-valent iron-layered double hydroxide, as an efficient solar photocatalyst for H2 production from ammonia borane

Tahawy, Rafat; Doustkhah, Esmail; Abdel-Aal, E.A.; Esmat, Mohamed; Farghaly, Fatma E.; El-Hosainy, Hamza; Tsunoji, Nao; El-Hosiny, F. I.; Yamauchi, Yusuke; Assadi, M. Hussein N.; Ide, Yusuke

doi:10.1016/j.apcatb.2020.119854

Cited by 27 publications

(38 citation statements)

References 54 publications

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“…However, fairly consistent values of TOF = 8.37, 13.95, and 11.85 min -1 were reported for Cu 40 @Ni 50 Fe 10 , Fe 67 Cu 33 NPs, and Ag 10 @Co 44 Ni 39 Fe 7 /graphene, respectively 46,242. Most recent studies in heterogeneous catalysis for AB hydrolysis addressed the activity of NPs containing oxidized iron, such as ferrites,243,244 and mixed-valence iron hydroxide 245. Magnetically recyclable metal ferrite nanoparticles MnFe 2 O 4 , CuFe 2 O 4 , NiFe 2 O 4 , and ZnFe 2 O 4 were used as catalysts for hydrogen production from the hydrolysis of AB 243.…”

mentioning

confidence: 76%

“…[46,241] Most recent studies in heterogeneous catalysis for AB hydrolysis addressed the activity of NPs containing oxidized iron, such as ferrites, [242,243] and mixed-valence iron hydroxide. [244] Magnetically recyclable metal ferrite nanoparticles MnFe 2 O 4 , CuFe 2 O 4 , NiFe 2 O 4 , and ZnFe 2 O 4 were used as catalysts for hydrogen production from the hydrolysis of AB. [242] TEM images of the ferrites revealed that all the samples are cubic nanoparticles with similar morphology in the range of 5-17 nm.…”

Section: Advances In Iron-based and Alloys Nanoparticle Catalystsmentioning

confidence: 99%

“…A mixed‐valent iron‐layered double hydroxide (“green rust” GR as only‐Fe‐LDH) heterogeneous catalyst (needle‐ or belt‐like structures with a width of up to 150 nm and a thickness of up to 20 nm), prepared by one‐pot solvothermal reaction using iron(III) chloride and glycerol, was used as solar photocatalyst for H 2 evolution from AB, while other iron minerals (magnetite Fe 3 O 4 , hematite α‐Fe 2 O 3 , and goethite α‐FeOOH) and a benchmark TiO 2 showed little to no activity. [ 244 ] GR did not catalyze H 2 evolution at higher temperatures but achieved H 2 production at room temperature when irradiated with a solar simulator with a TOF = 0.11 min −1 .…”

Section: Nanoparticle Catalysts For Ab Deshydrogenationmentioning

confidence: 99%

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The Hydrogen‐Storage Challenge: Nanoparticles for Metal‐Catalyzed Ammonia Borane Dehydrogenation

Mboyi

Poinsot

Roger

et al. 2021

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Dihydrogen is one of the sustainable energy vectors envisioned for the future. However, the rapidly reversible and secure storage of large quantities of hydrogen is still a technological and scientific challenge. In this context, this review proposes a recent state-of-the-art on H 2 production capacities from the dehydrogenation reaction of ammonia borane (and selected related amine-boranes) as a safer solid-source of H 2 by hydrolysis (or solvolysis), according to the different developed nanoparticle-based catalysts. The review groups the results according to the transition metals constituting the catalyst according a special view to current cost/availability consideration. This includes the noble metals Rh, Pd, Pt, Ru, Ag, as well as transition metals such as Co, Ni, Cu, and Fe. For each element, the monometallic and polymetallic structures, isolated or supported, are presented and the performances described in terms of TOF and recyclability. The structure-property links are highlighted whenever possible. It appears from all these works that the mastery of the preparation of catalysts remains a crucial point; not only in terms of process but also in terms of mastery of the electronic structures of the elaborated nanomaterials. A particular effort of the scientific community remains to be made in this multidisciplinary field with major societal stakes.

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confidence: 76%

Section: Advances In Iron-based and Alloys Nanoparticle Catalystsmentioning

confidence: 99%

Section: Nanoparticle Catalysts For Ab Deshydrogenationmentioning

confidence: 99%

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The Hydrogen‐Storage Challenge: Nanoparticles for Metal‐Catalyzed Ammonia Borane Dehydrogenation

Mboyi

Poinsot

Roger

et al. 2021

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“…Earth-abundant transition nonnoble metal catalysts have been investigated and proposed as promising alternatives to their noble metal counterparts in hydrogen generation from ammonia borane. [15,16] Non-noble metal, especially Co-based nanocatalysts, have the advantages of abundant variety, adjustable structure, and low price. The magnetic properties of Co, N, and Fe make the catalysts easy to separate in heterogeneous catalytic reactions.…”

Section: Introductionmentioning

confidence: 99%

Atomic Interface‐Exciting Catalysis on Cobalt Nitride‐Oxide for Accelerating Hydrogen Generation

Guan

Liu

Zhang

et al. 2022

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The rational design of the interface structure between nitride and oxide using the same metallic element and correlating the interfacial active center with a determined catalytic mechanism remain challenging. Herein, a Co4N‐Co3O4 interface structure is designed to determine the effect of interfacial active centers on hydrogen generation from ammonia borane. An unparalleled catalytic activity toward H2 production with a turnover frequency up to 79 min−1 is achieved on Co4N‐Co3O4@C catalyst for ten recycles. Experimental analyses and theoretical simulation suggest that the atomic interface‐exciting effect (AieE) is responsible for the high catalytic activity. The Co4N‐Co3O4 interface facilitates the targeted adsorption and activation of NH3BH3 and H2O molecules to generate H* and H2. The two active centers of Co(N)* and Co(O)* at the Co4N‐Co3O4 interface activate NH3BH3 and H2O, respectively. This proof‐of‐concept research on AieE provides important insights regarding the design of heterogeneous catalysts and promotes the development of the nature and regulation of energy chemical conversion.

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“…It is easy for substrates or reactants to penetrate the interlayer space, given the more defective and porous nature of the interlayer space for unactivated LDHs. It was proposed that the high stability comes from the less defective particle surface and the highly dense interlayer structure and manifested as a considerably higher crystallinity and a layer charge density [ 15 ]. Bond lengths, cell angles, electronic structure of cations, and the Mulliken population of clusters play a significant role in relative stability of LDHs [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Amine-Modified Cu-Mg-Al LDH Composite Photocatalyst

et al. 2021

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Cu-Mg-Al layered double hydroxides (LDHs) with amine modification were prepared by an organic combination of an anionic surfactant-mediated method and an ultrasonic spalling method using N-aminoethyl-γ-aminopropyltrimethoxysilane as a grafting agent. The materials were characterized by elemental analysis, XRD, SEM, FTIR, TGA, and XPS. The effects of the Cu2+ content on the surface morphology and the CO2 adsorption of Cu-Mg-Al LDHs were investigated, and the kinetics of the CO2 adsorption and the photocatalytic reduction of CO2 were further analyzed. The results indicated that the amine-modified method and appropriate Cu2+ contents can improve the surface morphology, the increase amine loading and the free-amino functional groups of the materials, which were beneficial to CO2 capture and adsorption. The CO2 adsorption capacity of Cu-Mg-Al N was 1.82 mmol·g−1 at 30 °C and a 0.1 MPa pure CO2 atmosphere. The kinetic model confirmed that CO2 adsorption was governed by both the physical and chemical adsorption, which could be enhanced with the increase of the Cu2+ content. The chemical adsorption was suppressed, when the Cu2+ content was too high. Cu-Mg-Al N can photocatalytically reduce CO2 to methanol with Cu2+ as an active site, which can significantly improve the CO2 adsorption and photocatalytic conversion.

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Exceptionally stable green rust, a mixed-valent iron-layered double hydroxide, as an efficient solar photocatalyst for H2 production from ammonia borane

Cited by 27 publications

References 54 publications

The Hydrogen‐Storage Challenge: Nanoparticles for Metal‐Catalyzed Ammonia Borane Dehydrogenation

The Hydrogen‐Storage Challenge: Nanoparticles for Metal‐Catalyzed Ammonia Borane Dehydrogenation

Atomic Interface‐Exciting Catalysis on Cobalt Nitride‐Oxide for Accelerating Hydrogen Generation

Preparation of Amine-Modified Cu-Mg-Al LDH Composite Photocatalyst

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