Influence of titanium doping on the shell-forming process and geometrical properties of hollow glass microspheres

Li, Fang; Lin, Shan; Li, Jing; Feng, Jing; Li, Bo; Zhang, Zhanwen; Liu, Meifang

doi:10.1016/j.ijhydene.2016.05.052

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…However, this approach introduces complexities in optimizing the concentration and distribution of doping agents, which is crucial to avoid detrimental effects on the microspheres' structural integrity and hydrogen storage efficiency. Research by Li et al 89 on the impact of titanium doping and by Yu et al 90 on surface modifications with epoxy integration presents innovative directions in material engineering for HGMs. These studies highlight the potential for tailored modifications to enhance hydrogen storage capabilities, yet they also raise critical questions about the scalability, economic viability, and long-term stability of such modified microspheres.…”

Section: Early Stage (1980s−2000s)mentioning

confidence: 99%

Advancements in Solid-State Hydrogen Storage: A Review on the Glass Microspheres

Zhang,

Zhou,

et al. 2024

Langmuir

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Glass microspheres, with their unique internal structure and chemical stability, offer a promising solution for the challenges of hydrogen storage and transmission, potentially advancing the utility of hydrogen as a safe and efficient energy source. In this review, we systematically evaluate various treatment and modification strategies, including fusion, sol−gel, and chemical vapor deposition (CVD), and compare the performance of different types of glass microspheres. Our synthesis of current research findings reveals that specific low-cost and environmentally friendly modification techniques can significantly enhance the hydrogen storage efficiency of glass microspheres, with some methods increasing storage capacity by up to 32% under certain conditions. Through a detailed life-cycle and cost-benefit assessment, our study highlights the economic and sustainability advantages of using modified glass microspheres. For example, selected alternative materials used in lightweight vehicles have been shown to reduce density by approximately 10% while reducing costs. This review not only underscores the contributions of modified glass microspheres to overcoming the limitations of current hydrogen storage technologies but also provides a systematic framework for improving their performance in hydrogen storage applications. Our research suggests that modified glass microspheres could help to make hydrogen energy more commercially viable and environmentally friendly.

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Section: Early Stage (1980s−2000s)mentioning

confidence: 99%

Advancements in Solid-State Hydrogen Storage: A Review on the Glass Microspheres

Zhang,

Zhou,

et al. 2024

Langmuir

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“…According to Zhang et al [124] HGMs filled polymers exhibit strong strain rate sensitivity, and the strain rate sensitivity factor decrease with the increase of volume fraction. Geometrical parameters of the HGMs were measured by Li et al [125]. Selective internal radiation therapy of hepatic malignancies is a ground breaking therapeutic modality that needs the combined efforts of multiple medical disciplines to ensure the safe delivery of 90 Y-labelled microspheres in the studies of Westcott et al [126].…”

Section: Figure 22mentioning

confidence: 99%

Glass Microspheres

Karasu

DEMİREL

ÖZTUVAN

et al. 2019

El-Cezeri Fen Ve Mühendislik Dergisi

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Glass microspheres are microscopic spheres of glass manufactured for a wide variety of uses in thermal insulation coating, putty, plastic casting polyester, radome, synthetic foam, adhesives, printed circuit board substrate, bowling, fan blades, and caulking materials, emulsion explosives, golf, sealant, pipeline insulation materials, artificial marble, PVC, low density oil drilling, light cement etc. Glass microspheres are usually between 1 and 1000 micrometres in diameter, although the sizes can range from 100 nanometres to 5 millimetres in diameter. Microspheres are spherical particles that can be distinguished into two categories; solid or hollow. This paper presented a general overview of glass microspheres.

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“…Several other reports which have adopted the idea of gradient structure also achieved enhanced performance. [59][60][61] Overall, doping has been proved to be an effective way to improve carrier mobility. [1][2][62][63] (…”

Section: (2) Dopingmentioning

confidence: 99%

Investigating cation-substituted metal vanadate photoanodes for solar water splitting

Zhang¹

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As a promising way to harvest solar energy, photoelectrochemical (PEC) water splitting has attracted intensive interest and attention in recent years. Some issues remain in the field of PEC water splitting and the choice of photoanode is an important problem. Recent decade has witnessed the rapid development of BiVO4 as one of the most successful photoanodes. While it has achieved 90% of its theoretical photocurrent, further improvement is limited by its relatively large bandgap 2.4 eV. Hence, to find alternative photoanode candidates with lower bandgap and comparable charge transport properties is urgently needed. This thesis aims to explore cation substituted metal vanadates which have lower bandgap than BiVO4 and comparable charge transport properties. First, the properties of BiVO4 and the role of catalyst have been explored to understand the limitation of BiVO4 photoanode. Next, Fe was incorporated into BiVO4 system to partially substitute Bi to create a mixture of BiVO4 and FeVO4. All the mixed metal vanadate photoanodes indeed have lower bandgap than BiVO4. PEC measurements show that Bi/Fe in 1:1 ratio has the highest performance and the bandgap has lowered to 2.2 eV. The heterojunction between BiVO4 and FeVO4 is also confirmed to be beneficial to charge separation. FeVO4 has a near-optimal bandgap around 2.07 eV, but its photocurrent achieved has been an order lower than BiVO4. The intrinsic properties of this compound are not available in the literature and hence limit its development as a potential photoanode. In this thesis, a series of characterizations have been carried out for the first time to determine the intrinsic properties and to understand the performance limiting factor. It is found that the performance of FeVO4 is limited by its poor charge carrier separation. With the help of microwave conductivity measurements, the origin of inefficient charge separation is attributed to the low carrier mobility. Doping has been applied to improve the carrier concentration and mobility, but the absolute photocurrent increase is limited and separation efficiency still remains low.

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Influence of titanium doping on the shell-forming process and geometrical properties of hollow glass microspheres

Cited by 7 publications

References 24 publications

Advancements in Solid-State Hydrogen Storage: A Review on the Glass Microspheres

Advancements in Solid-State Hydrogen Storage: A Review on the Glass Microspheres

Glass Microspheres

Investigating cation-substituted metal vanadate photoanodes for solar water splitting

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