Photocatalytic conversion of ethane: status and perspective

Zhu, Yao; Sun, Zhuxing; Wang, Chunling; Hu, Yun Hang

doi:10.1002/er.5000

Cited by 6 publications

(7 citation statements)

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“…As was mentioned earlier, one of the promising processes for producing ethylene, is the ODH of ethane in the presence of CO 2 as a soft oxidant [50]. Since ODH with CO 2 takes place at high temperatures, photo-oxidation of ethane with CO 2 can be a possible way to improve the process [93][94][95]. Zhang and co-workers demonstrated that the Pd on TiO 2 materials are prospective catalysts for the photocatalytic ODH with CO 2 at room temperature [94].…”

Section: New Trends In the Ethane Conversion Processmentioning

confidence: 96%

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Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology

et al. 2021

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Dehydrogenation processes play an important role in the petrochemical industry. High selectivity towards olefins is usually hindered by numerous side reactions in a conventional cracking/pyrolysis technology. Herein, we show recent studies devoted to selective ethylene production via oxidative and non-oxidative reactions. This review summarizes the progress that has been achieved with ethane conversion in terms of the process effectivity. Briefly, steam cracking, catalytic dehydrogenation, oxidative dehydrogenation (with CO2/O2), membrane technology, and chemical looping are reviewed.

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Section: New Trends In the Ethane Conversion Processmentioning

confidence: 96%

“…Photocatalysis is an alternative approach using clean solar energy to activate the ethane molecule and CO 2 under mild conditions [93]. As was mentioned earlier, one of the promising processes for producing ethylene, is the ODH of ethane in the presence of CO 2 as a soft oxidant [50].…”

Section: New Trends In the Ethane Conversion Processmentioning

confidence: 99%

Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology

et al. 2021

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“…Meanwhile, Bronkema et al. have also substantiated similar views that nearly 90 % of methanol adsorbed on anatase in the form of surface‐bound Ti−OCH 3 , suggesting that methoxy can be served as a primary hole scavenging trap, thus extending the lifetime of conduction electrons [102–106] …”

Section: Dissociative Adsorption Of Methanol To Methoxymentioning

confidence: 84%

Recent Advances in Aerobic Photo‐Oxidation of Methanol to Valuable Chemicals

et al. 2021

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The oxidation of photocatalytic methanol into valuable chemicals is of considerable importance to the growth of the chemical industry. TiO2 has been proven to be a catalyst for methanol photocatalytic oxidation to valued chemicals (e. g. methyl formate and dimethoxymethane) at room temperature with an inferior activity. Recently, it has become a hot research topic due to its low interaction temperature with fewer by‐products. Further, the introduction of IB metal particles (i. e. Cu, Ag, and Au) upon the surface of titania can drastically enhance the catalytic activity in the photo‐oxidation, which is mainly due to metal nanoparticles can optimally enhance the efficiency of the isolation of photo‐generated holes and electrons as well as dissociate oxygen molecules. Herein, we review recent progress of the photocatalysis of methanol toward the production of chemicals over different photocatalysts (e. g., TiO2P25, M NPs/TiO2, where M=CuO, Ag2O, Au, PtO, etc). Moreover, we also glean an understanding of the catalytic mechanism and conversion pathway at play, which is confirmed by STM, in‐situ ATR‐IR, DFT simulations, etc. The reaction pathway of photo‐oxidation is different from that in the thermal process. A pivotal intermediate is absorbed formaldehyde (HCHO*), which is formed via an oxidative dehydrogenation over the redox sites of catalysts. Then the generated HCHO* directly reacts with neighboring methanol to give methyl formate (on redox sites) and dimethoxymethane (on acidic sites through a scrambling movement).

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“…However, most of the processes for converting ethane are thermodynamically not feasible at room temperature due to the positive Gibbs energy change except for combustion or partial oxidation with oxygen. 2 Traditionally, ethane conversion has been studied in both homogeneous and heterogeneous catalytic systems. Homogeneous conversion and functionalization of ethane involve harsh reaction conditions such as the use of strong electrophiles, superacids, and strong oxidants and require noble metals such as iridium, rhodium and ruthenium complexes.…”

Section: Introductionmentioning

confidence: 99%