Three-dimensionally ordered mesoporous iron oxide-supported single-atom platinum: Highly active catalysts for benzene combustion

Yang, Kun; Liu, Yuxi; Deng, Jiguang; Zhao, Xingtian; Yang, Jun; Han, Zhuo; Hou, Zhiquan; Dai, Hongxing

doi:10.1016/j.apcatb.2018.11.077

Cited by 170 publications

(112 citation statements)

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“…[60]; 2019, Pt1/3 DOM FeOx from Ref. [61], and CeO2-Ag1/Mn2O3 from Ref. [62]; 2020, Pt1/TiO2 honeycomb catalyst from Ref.…”

Section: Figurementioning

confidence: 99%

“…Aromatic hydrocarbons, such as benzene, toluene, and xylenes represent another class of VOCs emitted in exhaust gas, which are usually toxic and carcinogenic [145]. SACs have also shown promise towards the catalytic oxidation of these VOCs based on aromatic hydrocarbons [61,62,70,146]. Zhang et al reported Mn2O3 nanowires supported Ag SAC with excellent catalytic oxidation activity toward toluene when compared to conventional Ag nanocatalysts [62].…”

Section: Catalytic Oxidation Of Aromatic Hydrocarbonsmentioning

confidence: 99%

“…As shown in Fig. 1, SACs have been successfully prepared by various methods and applied for the catalytic elimination of many pollutant species, including CO [46,68,69], NOx [50], formaldehyde (HCHO) [49,57], toluene [70], benzene [61], and mercury (Hg) [59], among others. However, even though significant progress has been made over emission control of pollutants by SACs, as well as the synthesis approaches and applications in energy conversion, systematic analysis of catalytic elimination of environmental pollutants by SACs has so far not been reported.…”

Section: Introductionmentioning

confidence: 99%

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Single-atom site catalysts for environmental catalysis

et al. 2020

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In recent decades, the environmental protection and long-term sustainability have become the focus of attention due to the increasing pollution generated by the intense industrialization. To overcome these issues, environmental catalysis has increasingly been used to solve the negative impact of pollutants emission on the global environment and human health. Supported platinum-metal-group (PGM) materials are commonly utilized as the state-of-the-art catalysts to eliminate gaseous pollutants but large quantities of PGMs are required. By comparison, single-atom site catalysts (SACs) have attracted much attention in catalysis owing to their 100% atom efficiency and unique catalytic performances towards various reactions. Over the past decade, we have witnessed burgeoning interests of SACs in heterogeneous catalysis. However, to the best of our knowledge, the systematic summary and analysis of SACs in catalytic elimination of environmental pollutants has not yet been reported. In this paper, we summarize and discuss the environmental catalysis applications of SACs. Particular focus was paid to automotive and stationary emission control, including model reaction (CO oxidation, NO reduction and hydrocarbon oxidation), overall reaction (three-way catalytic and diesel oxidation reaction), elimination of volatile organic compounds (formaldehyde, benzene, and toluene), and removal/decomposition of other pollutants (Hg 0 and SO 3). Perspectives related to further challenges, directions and design strategies of single-atom site catalysts in environmental catalysis were also provided.

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“…[60]; 2019, Pt1/3 DOM FeOx from Ref. [61], and CeO2-Ag1/Mn2O3 from Ref. [62]; 2020, Pt1/TiO2 honeycomb catalyst from Ref.…”

Section: Figurementioning

confidence: 99%

Section: Catalytic Oxidation Of Aromatic Hydrocarbonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Single-atom site catalysts for environmental catalysis

et al. 2020

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“…Besides, due to the ultra-small size (less than 2 nm), these metal nanoclusters exhibit unique and even unexpected properties that are not observed in bulk metal and conventional metal nanoparticles (Yang et al, 2012;Flytzani-Stephanopoulos, 2017;Yuan et al, 2020). Dai et al revealed that single-atom platinum supported on ordered mesoporous iron oxide showed higher catalytic activity and better water resistance than its nanoparticulated counterpart, achieving a benzene conversion of 90% at 198°C (Yang K. et al, 2019). Wang and coworkers also indicated that nanoceria-supported atomic Pt catalysts exhibited superior catalytic performance for the oxidation of methane (Xie et al, 2018).…”

Section: Influence Of Pd Particle Sizementioning

confidence: 99%

“…Proton transfer reaction-mass spectrometry based on the proton affinity of the VOCs can be also applied to investigate the reaction process of VOC oxidation (Zhong et al, 2020). Furthermore, IR spectroscopy, as a common characterization technology, is frequently utilized in detecting the intermediates formed in the oxidation process, such as in situ diffuse reflectance Fourier transform infrared spectroscopy (in situ DRIFT) and Fourier transform infrared spectroscopy (FT-IR) (Ryczkowski, 2001; Yang K. et al, 2019). Based on the changes in vibrational frequency and intensity of the probe, the properties of the active centers can be deduced.…”

Section: Mechanism Studies Of Volatile Organic Compound Oxidationmentioning

confidence: 99%

Advances in Catalytic Oxidation of Volatile Organic Compounds over Pd-Supported Catalysts: Recent Trends and Challenges

Song

Zhang

et al. 2020

Front. Mater.

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Volatile organic compounds (VOCs) are poisonous and regarded as the paramount source for the formation of secondary organic aerosols, ozone, and photochemical smog, greatly affecting human health and environment quality. In order to abate VOC emission, catalytic oxidation is widely applied in industries and is believed to be an efficient and economically feasible way for the elimination of VOCs. This review is primarily concentrated on summarizing the recent progress and developments in the catalytic oxidation of various VOCs over Pd-supported catalysts. Despite their high catalytic performances at much lower temperatures, the wide use of Pd-supported catalysts in the industry has been limited by their high cost, low thermal stability, and incomplete oxidation of VOCs. Hence, the intrinsic properties of the active sites and supports, the reaction conditions, the deactivation mechanism, and the strategy to reveal the catalytic oxidation pathway are also systematically summarized. This review aims to give a deep comprehension and guidance for the development of efficient and cost-effective Pd-supported catalysts in the near future.

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