Probing self-optimization of carbon support in oxygen evolution reaction

Xu, Wenjie; Cao, Dengfeng; Moses, Oyawale Adetunji; Sheng, Beibei; Wu, Chuanqiang; Shou, Hongwei; Wu, Xiaojun; Li, Song

doi:10.1007/s12274-021-3368-1

Cited by 24 publications

(12 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…FUTURE DIRECTIONS Most fibers today are woven with yarn. One wove together 1-mm long CNTs into a thread and then impregnated that with an epoxy resin to form a composite material having an outstanding tensile strength of 1.6 GPa [10][11]. These new CNTs may give us more muscular woven fibers in the future.…”

Section: Applicationsmentioning

confidence: 99%

Carbon Nanotubes: Methods, Achievements, Challenges, and Future Directions

Ghosh¹

2022

Preprint

View full text Add to dashboard Cite

Carbon nanotubes (CNTs), nanoscale hollow tubes of carbon atoms with their unique characteristics, have been revolutionizing the technology world because their unique structural and electrical properties make them ideal for a wide variety of nanotechnology-based applications. This article gives a synopsis of three prevalent methods of CNT synthesis. The field of nanotechnology and nanoscience promote their investigation forward to produce CNTs with acceptable parameters for future applications. Therefore, new approaches to their synthesis need to be developed and optimized. Throughout this paper, the history, the types, the structure, and the distinct well-developed synthesis methods for preparing CNTs will be reviewed, including arc discharge, laser ablation, and chemical vapor deposition (CVD).

show abstract

Section: Applicationsmentioning

confidence: 99%

Carbon Nanotubes: Methods, Achievements, Challenges, and Future Directions

Ghosh¹

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Most recently, we have studied the structure self-optimization process of electrocatalysts. ,, Actually, supports such as carbon materials may also undergo structural evolution under high oxidation potentials. For example, the Fe 2 O 3 –CNT catalyst suffered a self-optimization process, as the CNT support transformed into an amorphous state and wrapped on the outside of Fe 2 O 3 tightly . Accordingly, such enhanced interaction between Fe 2 O 3 and CNT was proven by high-resolution XPS of Fe 2p and HRTEM.…”

Section: Support Effects In Electrocatalysismentioning

confidence: 99%

“…For example, the Fe 2 O 3 −CNT catalyst suffered a self-optimization process, as the CNT support transformed into an amorphous state and wrapped on the outside of Fe 2 O 3 tightly. 29 Accordingly, such enhanced interaction between Fe 2 O 3 and CNT was proven by high-resolution XPS of Fe 2p and HRTEM. Theory calculations revealed the formation of a stronger positive electric center proposed around Fe, which contributed to its outstanding electrocatalytic activity and durability.…”

mentioning

confidence: 94%

Support Effects in Electrocatalysis and Their Synchrotron Radiation-Based Characterizations

Sheng

Cao

Liu

et al. 2021

J. Phys. Chem. Lett.

Self Cite

View full text Add to dashboard Cite

Electrocatalysis is recognized as a significant process for energy conversion. In fact, numerous factors, including the variable electronic structure of electrocatalysts, rich intermediates, and mutable active phases, have important but complex influences on the catalytic process. In addition, the support of electrocatalysts is considered as one of key factors that correlate to the final catalytic performance. In this Perspective, some recent advances regarding the support effects in electrocatalysis are briefly summarized. Synchrotron radiation-based characterizations are introduced to reveal the support-induced modulation in electrocatalysts. Recent in situ/operando studies are emphasized for better understanding of the real interaction between catalysts and support, together with visualizing the dynamic catalytic process. Some perspectives are proposed that may accelerate more attention being given to the support’s optimization for future practical applications.

show abstract

“…Besides XANES and EXAFS, so XAS is also efficient in the detection of chemical states, orbital hybridization and atom-specic local environments of SACs. [63][64][65] It is also demonstrated that establishing traditional characterization methods based on synchrotron-radiation light can improve their data quality and reliability to a large extent. For instance, synchrotron radiation XPS, one of the most important surface-sensitive characterization methods, can obtain the surface information of catalysts with high energy resolution.…”

Section: Introductionmentioning

confidence: 99%