Framework-Derived Tungsten Single-Atom Catalyst for Oxygen Reduction Reaction

Jiang, Bizhi; Sun, Hao; Yuan, Tao; He, Wenhao; Zheng, Changlin; Zhang, Huijuan; Yang, Jing; Zheng, Shiyou

doi:10.1021/acs.energyfuels.1c00758

Cited by 22 publications

(13 citation statements)

References 71 publications

(121 reference statements)

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“…It is easy to find that single atoms were observed in HRTEM, mainly because amine groups in derived N-doped carbons prevent the aggregation of W species, making single tungsten atoms much easier to form. On this basis, further research was conducted by Jiang et al [ 32 ]. They prepared W-SACs by loading tungsten onto zeolite imidazoline frameworks (ZIFs).…”

Section: Single Tungsten Atom Catalystsmentioning

confidence: 99%

Tungsten-Based Nanocatalysts: Research Progress and Future Prospects

Min

Liu

et al. 2022

Molecules

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The high price of noble metal resources limits its commercial application and stimulates the potential for developing new catalysts that can replace noble metal catalysts. Tungsten-based catalysts have become the most important substitutes for noble metal catalysts because of their rich resources, friendly environment, rich valence and better adsorption enthalpy. However, some challenges still hinder the development of tungsten-based catalysts, such as limited catalytic activity, instability, difficult recovery, and so on. At present, the focus of tungsten-based catalyst research is to develop a satisfactory material with high catalytic performance, excellent stability and green environmental protection, mainly including tungsten atomic catalysts, tungsten metal nanocatalysts, tungsten-based compound nanocatalysts, and so on. In this work, we first present the research status of these tungsten-based catalysts with different sizes, existing forms, and chemical compositions, and further provide a basis for future perspectives on tungsten-based catalysts.

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Section: Single Tungsten Atom Catalystsmentioning

confidence: 99%

Tungsten-Based Nanocatalysts: Research Progress and Future Prospects

Min

Liu

et al. 2022

Molecules

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“…The concept of single atom catalysts (SACs) was first introduced by Zhang and coworkers in 2011, where a single atomic layer of platinum was incorporated into an iron oxide support. [4] Since then, SACs have been utilized to catalyse several reactions such as water oxidation, [5][6][7] CO 2 reduction [8][9][10] and hydrogenation, [11,12] oxygen reduction, [13][14][15] hydrogen evolution, [7,[15][16][17][18] among others. [7,[19][20][21][22][23] Zhang and co-workers also synthesized a mixed gold and palladium SAC, which was supported on ion exchange resins and used to catalyse Ullmann reaction [24] of aryl halides in an aqueous media.…”

Section: Introductionmentioning

confidence: 99%

Single Atom Catalysts: An Overview of the Coordination and Interactions with Metallic Supports

Gawish

Drmosh

Onaizi

2022

The Chemical Record

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Catalyst utilization is a key economic factor in heterogeneous catalysis, particularly, when noble metals are used as the active phase. A huge saving on catalyst cost can be achieved with developing a single atomic layer of the active catalyst on a given cheap support. Besides the economic benefit, single atom catalysts (SACs) have also shown superior activity and selectivity relative to catalytic particles or nanoparticles; yet they are prone to aggregation and deactivation. The development of effective, stable, and commercially viable SACs is still a huge challenge. One of the remaining key obstacles is the ability to easily and effectively tune SACs‐support interactions and coordination in a way that enables the production of robust, stable, and versatile SACs. Accordingly, the coordination and interactions between metallic supports and SACs and their impacts on SACs stability and activity are reviewed in this article.

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“…The respective electrode reactions at cathode and anode are as follows. The state-of-the-art catalyst used for HOR and ORR is Pt supported on conducting carbon support (Pt/C). , While the kinetics of HOR is sufficiently fast on Pt/C, the cathodic ORR is relatively slow, multi-step, and sluggish, which typically contributes to the major bottleneck in PEMFCs’ efficiency. − In general, the ORR catalytic activity of metal-supported carbon mainly depends on the critical steps of (i) O 2 adsorption energy, (ii) O–O bond dissociation energy (OOH), and (iii) OH binding energy. Among all the metals, Pt-based catalysts exhibit low O 2 adsorption energy and the optimal counterbalance between the binding energies of OOH – and OH – intermediates during the ORR process .…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanofibers as Potential Catalyst Support for Fuel Cell Cathodes: A Review

et al. 2021

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Polymer electrolyte membrane fuel cells (PEMFCs) are a fast growing next-generation energy conversion technology, which hold promising interest for transportation and other applications. Nevertheless, successful commercialization of PEMFCs has been significantly retarded principally due to the high cost and poor durability of Pt/C catalysts used for anodic and cathodic reactions. Under typical fuel cell operating conditions, a traditional Pt/C catalyst is prone to degrade by various mechanisms, such as electrochemical carbon corrosion, which results in detrimental effects on the long-term performance. There have been tremendous efforts undertaken to develop durable carbon supports by introducing graphitic carbon components. In this context, carbon nanofiber supported catalysts have been investigated as highly durable supports for Pt and non-Pt nanoparticles in recent years. We anticipate it is timely to review the developments in this topic. This Review highlights the current progress on the graphitic nanofibers as a catalyst support in terms of morphology, electrocatalytic activity, various functionalization strategies, and so on, specifically focusing on the effect of nanofiber edge carbons and the advantages of surface reconstruction of nanofiber edge carbon into loops with regard to the stability of carbon support and fuel cell performance. We believe this Review stands as a guide for future researchers to figure out a rational design of oxygen reduction reaction catalysts, especially dealing with highly graphitized carbons.

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Framework-Derived Tungsten Single-Atom Catalyst for Oxygen Reduction Reaction

Cited by 22 publications

References 71 publications

Tungsten-Based Nanocatalysts: Research Progress and Future Prospects

Tungsten-Based Nanocatalysts: Research Progress and Future Prospects

Single Atom Catalysts: An Overview of the Coordination and Interactions with Metallic Supports

Carbon Nanofibers as Potential Catalyst Support for Fuel Cell Cathodes: A Review

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