Protein powder derived nitrogen-doped carbon supported atomically dispersed iron sites for selective oxidation of ethylbenzene

Cheng, Yuanbing; Sun, Qingdi; Huang, Liyun; He, Qian; Zhang, Hao; Wang, Pengbo; Zhang, Ying; Shi, Shaolin; Zhang, Xingcong; Gan, Tao; He, Xiaohui; Ji, Hongbing

doi:10.1039/d1dt02001c

Cited by 9 publications

(7 citation statements)

References 33 publications

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“…Presently, synthetic methods of carbon supported SACs mainly include electron/ion irradiation, ball milling, atomic layer deposition, photochemical reduction, solution-phase synthesis, and pyrolysis and thermal activation. [143][144][145][146][147][148][149][150] Among them, precursor pyrolysis method is the most commonly used one, and molecule/polymer, GO and MOF, are all excellent precursors. [151] For example, singleatomic Co sites in N-doped carbon, [152] Pt single-atom in graphdiyne, [153] RuC 2 N 2 , [154] and Pt@N-containing carbon matrix [155] are applied in different types of electrochemical reactions, such as HER, OER, ORR and so on.…”

Section: Sacs On Carbon-based Supportsmentioning

confidence: 99%

Emerging Heterogeneous Supports for Efficient Electrocatalysis

Fan

Zou

2022

Small Methods

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HER), CO 2 reduction reaction (CO 2 RR), nitrogen reduction reaction (NRR), and so forth, which are all basic reactions in energy storage and conversion. [9][10][11][12] Electrocatalysts are the key component in determining reaction efficiency and energy utilization. Unfortunately, present catalysts perform unsatisfactorily in terms of activity, stability, selectivity, and preparation cost, which still cannot meet the practical needs and hinder their further application and development. [13][14][15] Many important conversion devices (such as proton exchange membrane electrolyzer) rely on precious metals such as Pt, Pd, Ir, and Ru, however, the high prices obstruct their large-scale applications. [16,17] To solve these bottlenecks, exploiting new electrocatalysts with high activity, good stability, high selectivity, and low cost is the solution to satisfy the requirements of modern industry.Loading catalysts on suitable supports has long been recognized as an appealing alternative strategy to save cost for the merit of high atom utilization. The substrate can not only enhance the overall conductivity but also ensure good stability and uniform dispersion of metal catalysts. [18,19] Simultaneously, the excellent dispersion ability of supports makes the obtained catalysts expose more surface/interface to allow catalytic reaction take place effectively. For instance, platinum nanoparticles dispersed on nanocarbon (i.e., Pt/C) have been employed as the commercial electrocatalysts for ORR and HER, which show excellent catalytic properties. [20,21] The success of their commercial application lies in the fact that the carbon support can avoid the aggregation of Pt nano particles and reduce platinum amount in reactions. The newly developed catalytic reactions put forward new requirements for supported catalysts that carbon-based materials cannot meet. For instance, in the strongly acidic or strongly oxidative environment during OER, carbon is not stable and will be oxidized or participate in the reactions. [22,23] In this aspect, noncarbon supports such as metal oxides, carbides, and nitrides, exhibit natural advantages thanks to their excellent durability in harsh environments as well as the strong electronic interaction between catalysts and supports. [24,25] In addition, some robust catalysts, including 2D materials-supported catalysts, singleatom catalysts, and self-supported catalysts, have been sprung up like mushrooms due to their unique structures, high activity, and good stability. [26][27][28][29] The vigorous development of supports has greatly enriched the design concept of catalysts.Many supported metal catalysts have been designed to achieve high catalytic efficiency toward various important electrochemical reactions such as OER, NRR, CO 2 RR, and Electrocatalysis plays a fundamental role in many fields, such as metallurgy, medicine, chemical industry, and energy conversion. Anchoring active electrocatalysts with controllable loading and uniform dispersion onto suitable supports has become an attractive topic...

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Section: Sacs On Carbon-based Supportsmentioning

confidence: 99%

Emerging Heterogeneous Supports for Efficient Electrocatalysis

Fan

Zou

2022

Small Methods

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“…In this process, acetophenone is also formed as a byproduct by selective decomposition of cumene hydroperoxide, using copper as the catalyst at the working condition of 50–150 °C . Another significant, highly efficient, and eco-friendly production of acetophenone is the industrial method involving the selective oxidation of ethylbenzene (OEB), − 1-phenyl ethanol, , and styrene, , among which OEB is considered a suitable method for the synthesis of acetophenone, because of its low cost. Its abundance in the dimethylbenzene stream of the petrochemical industry makes it a valuable basic material for the production of acetophenone.…”

Section: Introductionmentioning

confidence: 99%

Selective Catalytic Oxidation of Ethylbenzene to Acetophenone: A Review of Catalyst Systems and Reaction Mechanisms

Azeez,

Nafiu,

Olarewaju

et al. 2023

Ind. Eng. Chem. Res.

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Acetophenone is an important chemical intermediate often employed in the production chain of many pharmaceuticals, agrochemicals, food, and cosmetic products. It is industrially produced as a byproduct of the Hock process. However, a growing demand for acetophenone has necessitated consideration of alternative production routes. The oxidation of ethylbenzene to acetophenone (OEB-A) is one of the most considered alternatives due to the low cost and availability of ethylbenzene (EB). The EB is one of the products of refinery downstream processes that is obtained from the xylene/EB isomerization unit. Although the OEB-A reaction is considered inexpensive, it has not been of great interest due to the inert behavior of C−H bond, relatively low acetophenone selectivity, and cumbersome separation strategies for extracting acetophenone from other reaction byproducts. In this Review, we discuss the recent advances in the OEB-A reaction covering both homogeneous and heterogeneous systems. Advances in catalyst design and development including ligand design and coordination strategies and tuning of support properties have, over the years, proven to be effective in increasing acetophenone selectivity during the OEB-A process. Exploring a single-atom catalyst's definitive active centers and high atom efficiency in the OEB-A reaction has demonstrated high-throughput results, even though not well harnessed due to the challenges of controlled synthesis of single-atom metal catalyst. Solvent-free, the OEB-A reaction has demonstrated to be attractive due to its ease of product collection and environmental friendliness. Green synthesis strategies such as metal-free OEB-A reaction and CO 2 -assisted OEB-A reaction have been reviewed. The CO 2 assisted OEB-A reaction has not received the desired attention, even though considerable improvement in catalytic performance was reported. Considering the importance of carbon circular economy and the ready availability of CO 2 , the CO 2 assisted OEB-A reaction could be an interesting research focus in the near future.

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“…Ball milling is a simple, efficient, and universal method for the synthesis of metal catalysts with high dispersion . Herein, based on the previous studies, − we develop a facile method to synthesize a phosphorus-doped carbon-supported rhodium catalyst (Rh/PC) by the ball-milling method. Under 35 °C and 3 MPa of syngas, Rh/PC exhibits superb conversion (93.6%) and high regioselectivity (b/l = 20.2:1) for the hydroformylation of styrene.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus-Doped Carbon-Supported Rh Nanoparticles for the Hydroformylation of Styrene with High Regioselectivity

Zhang

Guo

et al. 2023

Ind. Eng. Chem. Res.

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Protein powder derived nitrogen-doped carbon supported atomically dispersed iron sites for selective oxidation of ethylbenzene

Abstract: A single atom catalyst Fe1/NC, synthesized by ball milling with protein powder as the nitrogen source, exhibited superb performance for selective oxidation of ethylbenzene.

Cited by 9 publications

References 33 publications

Emerging Heterogeneous Supports for Efficient Electrocatalysis

Emerging Heterogeneous Supports for Efficient Electrocatalysis

Selective Catalytic Oxidation of Ethylbenzene to Acetophenone: A Review of Catalyst Systems and Reaction Mechanisms

Phosphorus-Doped Carbon-Supported Rh Nanoparticles for the Hydroformylation of Styrene with High Regioselectivity

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