Hydrogen storage properties of the novel crosslinked UiO-66-(OH)2

Chen, Saisai; Liu, Jin; Xu, Yongfei; Li, Zhen; Tai, Wang; Xu, Jiong; Wang, Zhuo

doi:10.1016/j.ijhydene.2018.06.106

Cited by 33 publications

(7 citation statements)

References 43 publications

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“…The hydrogen storage capacity at room temperature is measured based on a Sieverts apparatus for H 2 adsorption isotherms shown in Figure 3. Pure UiO-66 has a linear hydrogen isotherm with the maximum H 2 adsorption of 0.18 wt % at 30 bar, which agrees with the literature data (0.5 wt % at ∼60 bar 53 and 0.2 wt % at ∼20 bar 54 ). The linear isotherm indicates physisorption behavior based on the Chahine rule, which correlates isothermal hydrogen uptake with the SSA linearly.…”

Section: Inductively Coupled Plasma Mass Spectrometry (Icp-ms) Icp-ms...supporting

confidence: 90%

Room-Temperature Hydrogen Adsorption via Spillover in Pt Nanoparticle-Decorated UiO-66 Nanoparticles: Implications for Hydrogen Storage

Kang

et al. 2021

ACS Appl. Nano Mater.

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In order to improve room-temperature hydrogen storage, platinum (Pt) nanoparticles (NPs) are doped onto the Zrterephthalate metal−organic framework (MOF) UiO-66 and its derivatives for H 2 adsorption via spillover effect under a highpressure environment. Different MOF synthetic modulators are applied for MOF nanoparticle size manipulation, and surface functionality is designed to improve Pt dispersion. Powder X-ray diffraction shows retained MOF integrity after Pt decoration, and the broad Pt peak indicates well-dispersed Pt NPs. The MOF high specific surface areas are slightly reduced after Pt doping with the retained micropore size in the nanometer scale. The hydrogen storage capacity can be improved from 0.08 to 0.71 wt % at 300 K and 30 bar. It is suggested by X-ray photoelectron spectroscopy that the hydrogen capacity enhancement is due to H 2 spillover in which spiltover hydrogen radicals hydrogenate carboxylates in MOF supports. Although Pt aggregation reduces H 2 capacity in cycles, it is found that MOF and Pt nanoparticle sizes are critical for H 2 spillover for subsequent room-temperature hydrogen storage.

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Section: Inductively Coupled Plasma Mass Spectrometry (Icp-ms) Icp-ms...supporting

confidence: 90%

Room-Temperature Hydrogen Adsorption via Spillover in Pt Nanoparticle-Decorated UiO-66 Nanoparticles: Implications for Hydrogen Storage

Kang

et al. 2021

ACS Appl. Nano Mater.

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“…It is observed from the 1 H NMR spectra (shown in Figure S1) that the proton signals of −OH and −COOH for the raw material 2,5-dihydroxyterephthalic acid disappear after the reaction, and the proton signal of −C–H in the benzene ring shifts from 7.27 ppm to a high field of 7.11 ppm (Figure b) . As for the 13 C NMR spectrum, the characteristic peaks at 117.82, 119.83, 152.46, and 170.80 ppm correspond to the carbon signals of b, c, d, and e of the raw materials (Figure S2), respectively, which are consistent with previous literature . The chemical shifts of carbon atoms in the benzene-based moiety slightly change after the reaction (Figure c); however, the chemical shift of the carbon atom in the carboxyl group largely changes from 170.80 to 174.41 ppm (Figure c, Figure S2) due to the reaction between −OH and −COOH groups.…”

Section: Results and Discussionmentioning

confidence: 88%

“…24 As for the 13 C NMR spectrum, the characteristic peaks at 117.82, 119.83, 152.46, and 170.80 ppm correspond to the carbon signals of b, c, d, and e of the raw materials (Figure S2), respectively, which are consistent with previous literature. 25 The chemical shifts of carbon atoms in the benzene-based moiety slightly change after the reaction (Figure 2c); however, the chemical shift of the carbon atom in the carboxyl group largely changes from 170.80 to 174.41 ppm (Figure 2c, Figure S2) due to the reaction between −OH and −COOH groups. In addition, there are no other carbon peaks in the 13 C NMR spectrum apart from the four signals mentioned above, which demonstrates the high purity of the target product.…”

Section: Synthesis and Characterization Of Pldpbmentioning

confidence: 99%

Self-Standing Single-Ion Borate Salt-Based Polymer Electrolyte for Lithium Metal Batteries

Han,

Qiao,

et al. 2023

ACS Appl. Mater. Interfaces

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Polymer electrolytes (PEs) with excellent flexibility and superior compatibility toward lithium (Li) metal anodes have been deemed as one of the most promising alternatives to liquid e l e c t r o l y t e s . H o w e v e r , c o n v e n t i o n a l l i t h i u m b i s -(trifluoromethanesulfonyl)imide (LiTFSI)-based dual-ion PEs suffer from a low Li ion transference number and notorious Li dendrite growth. Here, a single-ion conducting polyborate salt without any fluorinated groups, polymeric lithium dihydroxyterephthalic acid borate (PLDPB), is presented for addressing the issues of Li metal batteries. Owing to a nearly immovable bulky anion and the presence of a rigid benzene structure, the PLDPB@ poly(ethylene oxide) (PEO) PE exhibits an ultrahigh Li ion transference number (0.94) and excellent mechanical strength, which could significantly restrict the growth of Li dendrites. Postmortem analysis reveals that a fluorine-free solid electrolyte interphase (SEI) enriched with B−O and benzene-containing species is formed on the surface of the Li metal anode, thereby facilitating elimination of excessive parasitic reactions and simultaneously suppressing the formation of Li dendrites. Consequently, the LiFePO 4 /Li cells with PLDPB@PEO PEs show an improved long-term cycling performance and high capacity retention (90.0%) and Coulombic efficiency (99.9%) after 500 cycles. This work may inspire new ideas to boost the development of single-ion conducting salts for dendrite-free Li metal batteries.

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“…The characteristic diffraction peaks at about 7.4°, 8.6°, and 25.7° are attributed to UiO-66-(OH) 2 . 12 The diffraction peaks marked at 2 θ = 12.4°, 21.5°, 25.1°, and 29.2° are assigned to the HOF structure. 13 The wide-range X-ray photoelectron spectroscopy (XPS) survey spectrum (Fig.…”

mentioning

confidence: 99%

A metal-organic framework@hydrogen-bond framework as a matrix for MALDI-TOF-MS analysis of small molecules

Yin

Zheng

et al. 2022

Chem. Commun.

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Hydrogen storage properties of the novel crosslinked UiO-66-(OH)2

Cited by 33 publications

References 43 publications

Room-Temperature Hydrogen Adsorption via Spillover in Pt Nanoparticle-Decorated UiO-66 Nanoparticles: Implications for Hydrogen Storage

Room-Temperature Hydrogen Adsorption via Spillover in Pt Nanoparticle-Decorated UiO-66 Nanoparticles: Implications for Hydrogen Storage

Self-Standing Single-Ion Borate Salt-Based Polymer Electrolyte for Lithium Metal Batteries

A metal-organic framework@hydrogen-bond framework as a matrix for MALDI-TOF-MS analysis of small molecules

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