Recyclable regeneration of NiO/NaF catalyst: Hydrogen evolution via steam reforming of oxygen-containing volatile organic compounds

Ding, Yan; Cai, Yi; Li, Peiwen; Gu, Sasa; Song, Shixing; Guan, Jie; Shen, Yuesong; Ye, Han; He, Weiyi

doi:10.1016/j.enconman.2022.115456

Cited by 15 publications

(5 citation statements)

References 80 publications

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“…The bond scission sequence of ethanol over a Ni‐based catalyst has been widely studied and generally follows the sequence: 1) O─H bond, 2) C─H bond in methylene (─CH 2 ─), 3) C─C bond, and 4) C─H bond methyl (─CH 3 ─). [ 50 ] For the 10Ni/Al 2 O 3 sample, the band at 1232 cm −1 (Figure 6a) was assigned to the δ (OH) in the molecular‐adsorbed ethanol. The C─O stretching bands of ethoxy (CH 3 CH 2 O*) species included a bidentate‐ v (CO) at 1066 cm −1 and a monodentate‐ v (CO) at 1132 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Shi,

Zhang,

et al. 2023

Advanced Energy Materials

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The technology of steam reforming of bioethanol has drawn great attention to green hydrogen production. However, catalyst deactivation has always been a significant obstacle to its applications. Here, a series of yNi/Mo2TiC2Tx (yNi/MTC) materials are tailored as robust catalysts for highly efficient long‐term ethanol reforming. The results reveal that hydrogen utilization efficiency of up to 95.6% and almost total ethanol conversion can be achieved at 550 °C using a 10Ni/MTC‐72h catalyst. Moreover, this catalyst has remarkable stability without obvious deactivation after 100 h of bioethanol reforming, which can be attributed to the formation of a Ni─Mo alloy and the strong interaction of the Ni‐Mom‐Mo2‐mTiC2Tx structure. The FTIR‐MS studies demonstrate the superiority of the 10Ni/MTC‐72h catalyst for reinforcing low‐temperature bioethanol activation, as verified by the faster conversion of acetate species than with Ni/Al2O3. The adsorption energies of ethanol on the surface of Ni (−1.07 eV) and Ni/MTC (−1.46 eV) are compared by density functional theory calculations and show the superiority of the Ni/MTC catalyst for activating ethanol during steam reforming. This study provides new implications for highly stabilized Ni‐Mom‐Mo2‐mTiC2Tx construction, which is expected to substantially promote the development and application of bioethanol‐to‐hydrogen production technologies.

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Section: Resultsmentioning

confidence: 99%

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Shi,

Zhang,

et al. 2023

Advanced Energy Materials

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“…[39][40][41] The corresponding reduction peaks of the 1%-NiCaO x /NaCl catalyst were obviously shifted to lower temperature, which was due to the strong interaction between NiCaO x and NaCl carrier, resulting in the reduction of Ni 2+ at a lower temperature. 24,42 Table 3 displays the hydrogen consumption percentage of NiCaO x and 1%-NiCaO x /NaCl in different temperature ranges. It can be clearly seen that the hydrogen consumption percentage of 1%-NiCaO x /NaCl at medium and low temperatures was significantly higher than that of NiCaO x .…”

Section: H 2 -Tpr Analysismentioning

confidence: 99%

“…Furthermore, we established that the NiO/ NaF catalyst exhibited broad applicability in the reforming of diverse oxygenated volatile organic compounds for hydrogen production. 24 Although the NiO/NaX catalyst can be recycled, its activity and stability need further improvement. Incorporating alkaline earth metal oxides such as CaO can diminish the acidic sites on the catalyst surface which inhibits carbon deposition and improves the adsorption of H 2 O, as well as the migration of surface OH.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen production from ethanol by steam reforming with recyclable NiCaO_x/NaCl catalysts

Hu,

He,

Shen

2024

Catal. Sci. Technol.

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“…Among a variety of gas detection technologies, metal oxide semiconductors (MOS) our superior due to their convenience of operation, high sensitivity, low cost, and good stability [14][15][16]. Nickel oxide (NiO) is a widely used p-type semiconductor, which is used in supercapacitors [17], catalysts [18], photovoltaic materials [19], and battery materials [20]. NiO has the advantages of environmental friendliness, low cost, good repeatability, etc., so it is considered an important material for gas sensors [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Ethanol Sensing Using NiO Hollow Spheres Synthesized via Hydrothermal Method

Zeng

Zhou

et al. 2022

Chemosensors

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Excessive ethanol gas is a huge safety hazard, and people will experience extreme discomfort after inhalation, so efficient ethanol sensors are of great importance. This article reports on ethanol gas sensors that use NiO hollow spheres assembled from nanoparticles, nanoneedles, and nanosheets prepared by the hydrothermal method. All of the samples were characterized for performance evaluation. The sensors based on the NiO hollow spheres showed a good response to ethanol, and the hollow spheres assembled from nanosheets (NiO-S) obtained the best ethanol gas-sensing performance. NiO-S provided a larger response value (38.4) at 350 °C to 200 ppm ethanol, and it had good stability and reproducibility. The nanosheet structure and the fluffy surface of NiO-S obtained the largest specific surface area (55.20 m2/g), and this structure was beneficial for the sensor to adsorb more gas molecules in an ethanol atmosphere. In addition, the excellent sensing performance could ascribe to the larger Ni3+/Ni2+ of NiO-S, which achieved better electronic properties. Furthermore, in terms of commercial production, the template-free preparation of NiO-S eliminated one step, saving time and cost. Therefore, the sensors based on NiO-S will serve as candidates for ethanol sensing.

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Recyclable regeneration of NiO/NaF catalyst: Hydrogen evolution via steam reforming of oxygen-containing volatile organic compounds

Cited by 15 publications

References 80 publications

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Hydrogen production from ethanol by steam reforming with recyclable NiCaO_x/NaCl catalysts

Highly Sensitive Ethanol Sensing Using NiO Hollow Spheres Synthesized via Hydrothermal Method

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Recyclable regeneration of NiO/NaF catalyst: Hydrogen evolution via steam reforming of oxygen-containing volatile organic compounds

Cited by 15 publications

References 80 publications

Modulating Mxene‐Derived Ni‐Mom‐Mo2‐mTiC2Tx Structure for Intensified Low‐Temperature Ethanol Reforming

Modulating Mxene‐Derived Ni‐Mom‐Mo2‐mTiC2Tx Structure for Intensified Low‐Temperature Ethanol Reforming

Hydrogen production from ethanol by steam reforming with recyclable NiCaOx/NaCl catalysts

Highly Sensitive Ethanol Sensing Using NiO Hollow Spheres Synthesized via Hydrothermal Method

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Product

Resources

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Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Hydrogen production from ethanol by steam reforming with recyclable NiCaO_x/NaCl catalysts