scholarly journals Enhanced photocatalytic hydrogen production of MoS2 sheet/carbon nanofiber using rapid electron transport of Mo6+ and carbon nanofiber

RSC Advances ◽  
2021 ◽  
Vol 11 (61) ◽  
pp. 38523-38527
Author(s):  
Jianfeng Qiu ◽  
Jiaqi Pan ◽  
Shunhang Wei ◽  
Qifeng Liang ◽  
Yawei Wang ◽  
...  

In this work, MoS2 anchored on the surface of carbon nanofibers was designed to enhance increasing the activity of exposed edge and electrical conductivity at the same time.

2016 ◽  
Vol 76 ◽  
pp. 37-41 ◽  
Author(s):  
Shuang Yue ◽  
Bowen Wei ◽  
Xiaodi Guo ◽  
Shuangxia Yang ◽  
Lianying Wang ◽  
...  

2020 ◽  
Vol 10 (5) ◽  
pp. 1368-1375
Author(s):  
Cankun Jiang ◽  
Lulu Zhang ◽  
Fan Gao ◽  
Xueyan Huang ◽  
Rui Lei ◽  
...  

A novel CdS@MoOx core–shell structure photocatalyst for photocatalytic hydrogen production, in which MoOx is used as an electron transport medium.


2021 ◽  
Author(s):  
Xinyu Liu ◽  
Jing Xu ◽  
Lijun Ma ◽  
Ye Liu ◽  
Linying Hu

The construction of heterojunctions can effectively improve the electron transport rate and photocatalytic activity.


2006 ◽  
Vol 510-511 ◽  
pp. 30-33 ◽  
Author(s):  
Ling Han ◽  
Tae Ki Lim ◽  
Young Jun Kim ◽  
Hyun Sik Hahm ◽  
Myung Soo Kim

Catalytic decomposition of methane is an environmentally attractive approach to CO2-free hydrogen production. The decomposition of methane over carbon nanofibers was carried out in a fixed bed flow reactor. The objectives of this study are to demonstrate the activity of carbon nanofibers for methane decomposition in comparison with that of carbon black and to investigate the nature of active sites in the carbon catalysts. The catalytic activities of different carbon catalysts were found in the following order: carbon nanofiber > HI-900L carbon black > N330 carbon black > non-catalyst. After investigating the surface area and mass of the carbon catalysts after methane decomposition, the nature of active sites was discused.


2003 ◽  
Vol 774 ◽  
Author(s):  
Janice L. McKenzie ◽  
Michael C. Waid ◽  
Riyi Shi ◽  
Thomas J. Webster

AbstractSince the cytocompatibility of carbon nanofibers with respect to neural applications remains largely uninvestigated, the objective of the present in vitro study was to determine cytocompatibility properties of formulations containing carbon nanofibers. Carbon fiber substrates were prepared from four different types of carbon fibers, two with nanoscale diameters (nanophase, or less than or equal to 100 nm) and two with conventional diameters (or greater than 200 nm). Within these two categories, both a high and a low surface energy fiber were investigated and tested. Astrocytes (glial scar tissue-forming cells) and pheochromocytoma cells (PC-12; neuronal-like cells) were seeded separately onto the substrates. Results provided the first evidence that astrocytes preferentially adhered on the carbon fiber that had the largest diameter and the lowest surface energy. PC-12 cells exhibited the most neurites on the carbon fiber with nanodimensions and low surface energy. These results may indicate that PC-12 cells prefer nanoscale carbon fibers while astrocytes prefer conventional scale fibers. A composite was formed from poly-carbonate urethane and the 60 nm carbon fiber. Composite substrates were thus formed using different weight percentages of this fiber in the polymer matrix. Increased astrocyte adherence and PC-12 neurite density corresponded to decreasing amounts of the carbon nanofibers in the poly-carbonate urethane matrices. Controlling carbon fiber diameter may be an approach for increasing implant contact with neurons and decreasing scar tissue formation.


2003 ◽  
Vol 774 ◽  
Author(s):  
Janice L. McKenzie ◽  
Michael C. Waid ◽  
Riyi Shi ◽  
Thomas J. Webster

AbstractCarbon nanofibers possess excellent conductivity properties, which may be beneficial in the design of more effective neural prostheses, however, limited evidence on their cytocompatibility properties exists. The objective of the present in vitro study was to determine cytocompatibility and material properties of formulations containing carbon nanofibers to predict the gliotic scar tissue response. Poly-carbonate urethane was combined with carbon nanofibers in varying weight percentages to provide a supportive matrix with beneficial bulk electrical and mechanical properties. The substrates were tested for mechanical properties and conductivity. Astrocytes (glial scar tissue-forming cells) were seeded onto the substrates for adhesion. Results provided the first evidence that astrocytes preferentially adhered to the composite material that contained the lowest weight percentage of carbon nanofibers. Positive interactions with neurons, and, at the same time, limited astrocyte functions leading to decreased gliotic scar tissue formation are essential for increased neuronal implant efficacy.


2021 ◽  
pp. 100109
Author(s):  
Wenyang Lu ◽  
Tongtong Wang ◽  
Xin He ◽  
Kaidi Sun ◽  
Zaixing Huang ◽  
...  

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