Polyoxometalate-Based Catalysts for CO2 Conversion

Cao, Yanwei; Chen, Qiongyao; Shen, Chaoren; He, Lin

doi:10.3390/molecules24112069

Cited by 58 publications

(34 citation statements)

References 115 publications

(152 reference statements)

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“…However, due to difficulties achieving insights into the POM structure, no significant progress was made until Keggin determined the structure of H 3 PW 12 O 40 in 1934 [2]. Since then, the interest of scientists in POMs has increased drastically, not only in the development of new POM structures, but also towards their use in various applications, such as catalysis, optics, magnetism, biological medicine, environmental science, life science, and technology [3][4][5][6][7]. In particular, their use in catalysis is one of the most examined fields because of their strong acidity, oxygen-rich surface, photoactivity, and redox capability.…”

Section: Introductionmentioning

confidence: 99%

“…Despite these interesting characteristics, POMs still exhibit some drawbacks for their use in catalysis. First, POMs possess a low surface area (<10 m 2 g −1 ), which consequently hinders the accessibility of reactants and secondly, their high solubility in aqueous solutions and polar organic solvents results in a low recyclability [4]. The immobilization of POMs into/onto porous solids has been proposed to overcome these shortcomings and to achieve catalysts with a high catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

“…The authors observed an enhanced chemical and thermal stability after the embedding of POM and no POM leaching was noted during catalysis in several studies [40,41]. In one of these studies, Shuxia Liu's group prepared a series of Keggin-type POMs in Cu-BTC, denoted as NENU-n, n = 1~10, and formulated as [Cu 2 (BTC) 4 2 (X = Si, Ge, P, As, V, Ti; M = W, Mo), by using a one-pot hydrothermal synthesis [42,43]. The templating effect of the POMs resulted in highly crystalline composite materials which showed an enhanced thermal stability.…”

Section: Introductionmentioning

confidence: 99%

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POM@MOF Hybrids: Synthesis and Applications

et al. 2020

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The hybrid materials that are created by supporting or incorporating polyoxometalates (POMs) into/onto metal–organic frameworks (MOFs) have a unique set of properties. They combine the strong acidity, oxygen-rich surface, and redox capability of POMs, while overcoming their drawbacks, such as difficult handling, a low surface area, and a high solubility. MOFs are ideal hosts because of their high surface area, long-range ordered structure, and high tunability in terms of the pore size and channels. In some cases, MOFs add an extra dimension to the functionality of hybrids. This review summarizes the recent developments in the field of POM@MOF hybrids. The most common applied synthesis strategies are discussed, together with major applications, such as their use in catalysis (organocatalysis, electrocatalysis, and photocatalysis). The more than 100 papers on this topic have been systematically summarized in a handy table, which covers almost all of the work conducted in this field up to now.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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POM@MOF Hybrids: Synthesis and Applications

et al. 2020

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“…The photogenerated electrons of POMs also exhibit interesting catalytic ability in the reduction of metal cations, [106,107] H 2 generation [108][109][110] and CO 2 reduction. [111][112][113][114] The fast and multiple electron-transfer behavior of POMs can relieve the quick recombination process of photogenerated electron and hole pairs which is believed to be the fatal barrier for high-performance photocatalytic reactions.…”

Section: The Photoelectron Transfer Of Poms In Chemical Fuels Generationmentioning

confidence: 99%

The Intrinsic Charge Carrier Behaviors and Applications of Polyoxometalate Clusters Based Materials

et al. 2021

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Polyoxometalates (POMs) are a series of molecular metal oxide clusters, which span the two domains of solutes and solid metal oxides. The unique characters of POMs in structure, geometry, and adjustable redox properties have attracted widespread attention in functional material synthesis, catalysis, electronic devices, and electrochemical energy storage and conversion. This review is focused on the links between the intrinsic charge carrier behaviors of POMs from a chemistry‐oriented view and their recent ground‐breaking developments in related areas. First, the advantageous charge transfer behaviors of POMs in molecular‐level electronic devices are summarized. Solar‐driven, thermal‐driven, and electrochemical‐driven charge carrier behaviors of POMs in energy generation, conversion and storage systems are also discussed. Finally, present challenges and fundamental insights are discussed as to the advanced design of functional systems based upon POM building blocks for their possible emerging application areas.

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“…Huge CO 2 emissions may lead to global climate problems and rising sea levels, which can seriously threaten the human living environment. CO 2 is also deemed an abundant and cheap C1 source to produce chemicals and energy [ 2 ]. However, due to the most oxidized carbon atom being in CO 2 and its chemical inertness, the conversion of CO 2 usually requires harsh reaction conditions, such as high temperature, high-pressure of CO 2 , and the need for catalysts [ 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

The Application of Biomass-Based Catalytic Materials in the Synthesis of Cyclic Carbonates from CO2 and Epoxides

et al. 2020

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The synthesis of cyclic carbonates from carbon dioxide (CO2) and epoxides is a 100% atom economical reaction and an attractive pathway for CO2 utilisation. Because CO2 is a thermodynamically stable molecule, the use of catalysts is mandatory in reducing the activation energy of the CO2 conversion. Considering environmental compatibility and the high-efficiency catalytic conversion of CO2, there is the strong need to develop green catalysts. Biomass-based catalysts, a type of renewable resource, have attracted considerable attention due to their unique properties—non-toxic, low-cost, pollution-free, etc. In this review, recent advances in the development of biomass-based catalysts for the synthesis of cyclic carbonates by CO2 and epoxides coupling are summarized and discussed in detail. The effect of biomass-based catalysts, functional groups, reaction conditions, and co-catalysts on the catalytic efficiency and selectivity of synthesizing cyclic carbonates process is discussed. We intend to provide a comprehensive understanding of recent experimental and theoretical progress of CO2 and epoxides coupling reaction and pave the way for both CO2 conversion and biomass unitization.

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Polyoxometalate-Based Catalysts for CO2 Conversion

Cited by 58 publications

References 115 publications

POM@MOF Hybrids: Synthesis and Applications

POM@MOF Hybrids: Synthesis and Applications

The Intrinsic Charge Carrier Behaviors and Applications of Polyoxometalate Clusters Based Materials

The Application of Biomass-Based Catalytic Materials in the Synthesis of Cyclic Carbonates from CO2 and Epoxides

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