Preparation and high catalytic performance of hollow BN spheres-supported Ni for hydrogen production from methanol

Ohashi, T.; Wang, Yuting; Shimada, Shiro

doi:10.1039/c0jm00412j

Cited by 27 publications

(15 citation statements)

References 35 publications

(50 reference statements)

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“…It was found that the Ni/HBNs catalyst exhibited higher selectivity and activity than conventional Ni/Al 2 O 3 catalyst in the generation of H 2 by decomposition of methanol. 8 Besides, the BN hollow structure loaded metal 14 or oxide nanoparticles to form hybrid/composite materials would endow the materials in the potential application in sensor, 14 phosphors 15 and magnetic 16 areas.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] Also, a near band edge emission at 215 nm enables it a promising candidate for deep-blue and UV applications, such as ultraviolet laser devices. [4][5][6][7] Since the discovery of boron nitride nanotubes (BNNTs), the design of a large variety of hollow boron nitride nanostructures, such as, hollow spheres (HBNs), [8][9][10] nanohorns 11 hollow ribbons 12 and nano-polyhedrons, 13 becomes the focus of intensive studies due to their interesting properties related to nanosized systems. It was found that the Ni/HBNs catalyst exhibited higher selectivity and activity than conventional Ni/Al 2 O 3 catalyst in the generation of H 2 by decomposition of methanol.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of Hollow Boron Nitride Nanoboxes with Ultrathin Walls from Cube-Like LaB<SUB>6</SUB>

Wang¹,

Si²,

Qian³

2013

j. nanosci. nanotech.

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In this study, cube-like LaB6 was synthesized by Mg coreduction of LaCl3 and B20,3. Then, boron nitride nanoboxes (BNNBs) were produced by nitriding cube-like LaB6, and the latter is not only played as boron source, but also as hard template. The results of characterization (transmission electron microscopy and scanning electron microscopy) indicate that the BN products are hollow structures, the diameter of the nanoboxes is in the range of 200-1000 nm, and the wall thickness of the BN nanoboxes is 16 nm. The specific surface area of BN nanoboxes is 45 m2/g, the pore size is mainly located at 10 nm, and the total pore volume is 0.16 cm3/g. The nitriding of cube-like LaB6 into hollow BNNBs here would provide an alternative route for the synthesis of other hollow BN architectures by other boron-containing materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of Hollow Boron Nitride Nanoboxes with Ultrathin Walls from Cube-Like LaB<SUB>6</SUB>

Wang¹,

Si²,

Qian³

2013

j. nanosci. nanotech.

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“…5 Compared to the 3D porous carbon materials, the synthesis of the 3D porous BN is more difficult because of the nature of BN and limited B and N sources. Until now, intensive investigations have been devoted to the controllable synthesis of 3D porous BN including 3D hollow spheres, 6 NaOH-embedded 3D porous BN, 7 3D nanoowers, 8 3D-BNNS networks, 9 porous microsponges 10 and ultralight boron nitride aerogels. 11 Today, rapidly changing technologies, industrial products and practices generate waste and toxic pollutants that if improperly managed, have threatened human health and the environment.…”

Section: Introductionmentioning

confidence: 99%

Template-free synthesis of three dimensional porous boron nitride nanosheets for efficient water cleaning

Sun

et al. 2018

RSC Adv.

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“…While hexagonal boron nitride (h-BN) is now widely used as an ideal substrate material for graphene-based electronics and spintronic devices, [1][2][3][4] the hetero-polar bonding in hexagonal boron nitride makes it also promising for applications such as light emitting diodes, 5 catalysis supports 6 and hydrogen storage materials. 7 Large hydrogen uptakes as large as 4.2 wt% and 2.3 wt% are reported for h-BN nanotubes 8 and porous microbelts, 9 respectively, which are larger than that of a carbon nanotube (<1 wt%).…”

Section: Introductionmentioning

confidence: 99%

Direct observation of site-selective hydrogenation and spin-polarization in hydrogenated hexagonal boron nitride on Ni(111)

et al. 2017

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We report the structural analysis and spin-dependent band structure of hydrogenated boron nitride adsorbed on Ni(111). The atomic displacement studied by using the normal incidence X-ray standing wave (NIXSW) technique supports the H-B(fcc):N(top) model, in which hydrogen atoms are site-selectively chemisorbed on boron atoms and N atoms remain on top of Ni atoms. The distance between the Ni plane and nitrogen plane did not change after hydrogenation, which implies that the interaction between Ni and N is 3d-π orbital mixing (donation and back-donation) even after hydrogenation of boron. The remaining π* peaks in near-edge X-ray absorption fine structure (NEXAFS) spectra are a manifestation of the rehybridization of sp into sp states, which is consistent with the N-B-N bonding angle derived from NIXSW measurement. The SPMDS measurement revealed the spin asymmetry appearing on hydrogenated h-BN, which was originated from a π related orbital with back donation from the Ni 3d state. Even though the atomic displacement is reproduced by the density functional theory (DFT) calculation with the H-B(fcc):N(top) model, the experimental spin-dependent band structure was not reproduced by DFT possibly due to the self-interaction error (SIE). These results reinforce the site-selective hydrogenation of boron and pave the way for efficient design of BN nanomaterials for hydrogen storage.

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Preparation and high catalytic performance of hollow BN spheres-supported Ni for hydrogen production from methanol

Cited by 27 publications

References 35 publications

Synthesis of Hollow Boron Nitride Nanoboxes with Ultrathin Walls from Cube-Like LaB<SUB>6</SUB>

Synthesis of Hollow Boron Nitride Nanoboxes with Ultrathin Walls from Cube-Like LaB<SUB>6</SUB>

Template-free synthesis of three dimensional porous boron nitride nanosheets for efficient water cleaning

Direct observation of site-selective hydrogenation and spin-polarization in hydrogenated hexagonal boron nitride on Ni(111)

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