Catalytic mechanisms of oxygen-containing groups over vanadium active sites in an Al-MCM-41 framework for production of 2,5-diformylfuran from 5-hydroxymethylfurfural

Liu, Lijuan; Wang, Zhao-Meng; Lyu, Yajing; Zhang, Jinfeng; Huang, Zhou; Qi, Ting; Si, Zhen-Bing; Yang, Haoxiong; Hu, Changwei

doi:10.1039/c9cy02130b

Cited by 17 publications

(6 citation statements)

References 64 publications

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“…Since there are complicated noncovalent and bonding interactions at the surface/interface of Al and Al(OH) 3 with OPA, as well as, water molecules, etc. which play a vital role in preventing the self‐corrosion of Al, here combined QM/MM methods implemented in QMERA [ 68 ] were used to calculate interactions between OPA and Al(OH) 3 (001) surface. In QM/MM calculations, the QM region consists of OPA molecules and other atoms are in the MM region.…”

Section: Methodsmentioning

confidence: 99%

Dynamic Locking of Interfacial Side Reaction Sites Promotes Aluminum‐Air Batteries Close to Theoretical Capacity

Huang

Fang

et al. 2021

Advanced Sustainable Systems

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Aluminum metal has been regarded as a promising anode material for aqueous metal‐air batteries. However, the stable cycling of Al anodes is challenging due to the severe parasitic corrosion of Al metal in alkaline electrolytes. Here, a novel additive, n‐octylphosphonic acid (OPA), is introduced into the typical NaOH electrolyte system to improve the interfacial stability of Al anodes and thus promote high‐performance Al‐air batteries (AABs). Combining several experimental characterizations and theoretical calculation, it is proved that OPA molecules in an NaOH aqueous environment can modify the Al anode/electrolyte interface and alter the stacking of the discharge product. The electrolyte engineering is capable of anchoring dynamically to restrain side reactions through hydrogen bonds (H···O), homogenizing the dissolution of Al metal and avoiding precipitation agglomeration. As a proof of concept, AABs full cells with an electrolyte containing OPA achieve higher potential plateau and discharge capacity than those with a pure NaOH electrolyte. It paves a way to develop highly‐efficient and eco‐friendly electrolyte additive strategies for high‐performance AABs devices and advance the current understanding of organic additive mechanisms in AABs.

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Section: Methodsmentioning

confidence: 99%

Dynamic Locking of Interfacial Side Reaction Sites Promotes Aluminum‐Air Batteries Close to Theoretical Capacity

Huang

Fang

et al. 2021

Advanced Sustainable Systems

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“…The conventional thermocatalytic oxidation of HMF into high‐value chemicals (e. g., HMFCA, FFCA, DFF, and FDCA) is generally carried out over supported Pt, Au, Pd, and Ru catalysts at a high temperature (over 80 °C) and hyperbaric oxygen atmosphere (higher than 10 bar) [23] . Although inexpensive transition metal‐based catalysts have been developed and utilized, their catalytic activity is often lower than that of noble metal supported catalysts [23–29] . Building a cheap and efficient catalytic system to oxidize HMF under mild conditions has become a goal pursued by researchers.…”

Section: Introductionmentioning

confidence: 99%

Electro‐ and Photocatalytic Oxidative Upgrading of Bio‐based 5‐Hydroxymethylfurfural

Yang

2022

ChemSusChem

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“…It is well-known that many OCGs, such as the –COOH, –OH, carbonyl (–C=O), and epoxide (C–O–C) groups, are widely distributed on the surfaces of all kinds of carbon materials [ 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. These materials have been utilized as supports or metal-free catalysts in many reactions, such as hydrogenation and CO 2 reduction reactions [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Oxygen-Containing Group on the Catalytic Performance of Zn/C Catalyst for Acetylene Acetoxylation

Zhu

Kang

2021

Nanomaterials

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In this study, a series of activated carbon-based supports with different oxygen-containing groups (OCGs) proportions were obtained via thermal treatment in an ozone flow. Semiquantitative analyses indicated that the performance of the catalyst attained a maximum after 30 min of treatment with ozone flow, and had a positive correlation with the content ratios of carboxyl and hydroxyl groups. Further, temperature-programmed desorption analysis demonstrated that the high performance (63% acetic acid conversion) of the prepared catalyst for the acetoxylation of acetylene could be ascribed to the reduced strength of increased capacity of acetylene adsorption. Density functional theory proved that the additional –COOH in the dicarboxylic catalytic system could be employed as a support for the active sites, and enhancing C2H2 adsorption strength in the rate-limiting step in the actual experimental process effectively accelerated the reaction rate. Thus, the OCGs on the surface of activated carbon play a crucial role in the catalytic performance of the acetylene acetoxylation catalyst.

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Catalytic mechanisms of oxygen-containing groups over vanadium active sites in an Al-MCM-41 framework for production of 2,5-diformylfuran from 5-hydroxymethylfurfural

Abstract: In the V-doped Al-MCM-41 framework, the [V-1] active site with a hydroxyl group displays better catalytic activity than the [V-0] active site without a hydroxyl group toward the oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran.

Cited by 17 publications

References 64 publications

Dynamic Locking of Interfacial Side Reaction Sites Promotes Aluminum‐Air Batteries Close to Theoretical Capacity

Dynamic Locking of Interfacial Side Reaction Sites Promotes Aluminum‐Air Batteries Close to Theoretical Capacity

Electro‐ and Photocatalytic Oxidative Upgrading of Bio‐based 5‐Hydroxymethylfurfural

Effect of Oxygen-Containing Group on the Catalytic Performance of Zn/C Catalyst for Acetylene Acetoxylation

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