Query on electrochemistry: Vectorial charge transfer meaning

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SUMMARY

The discussion centers on the distinction between "electron transfer" and "vectorial electron transfer" in electrochemistry. Participants highlight that "vectorial charge transfer" refers to charge transfer occurring through specific interfaces, influenced by the quantum confinement phenomenon. The term has historical significance, with its first recorded usage in 1979, indicating its established presence in scientific literature. The conversation emphasizes the importance of understanding these concepts in the context of materials like TiO2 nanotube arrays used in photo-electrocatalysis.

PREREQUISITES
  • Understanding of electrochemistry principles
  • Familiarity with quantum confinement phenomenon
  • Knowledge of photo-electrocatalysis processes
  • Experience with TiO2 nanotube arrays and their applications
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  • Research the quantum confinement phenomenon in nanostructured materials
  • Explore the role of TiO2 nanotube arrays in photo-electrocatalysis
  • Investigate the historical context and applications of vectorial charge transfer
  • Learn about charge transfer mechanisms at molecular interfaces
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Researchers in electrochemistry, materials scientists, and anyone involved in the development of photo-electrocatalytic systems will benefit from this discussion.

MarcoUscanga01
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TL;DR
When talking about electrochemistry what is the difference between saying "electron transfer" and "vectorial electron transfer". It seems to me that "vectorial electron transfer" is just another fancy way of saying "electron transfer" but I am not quite sure if there is a kind of special meaning to it.
Hello guys!

When talking about electrochemistry what is the difference between saying "electron transfer" and "vectorial electron transfer". It seems to me that "vectorial electron transfer" is just another fancy way of saying "electron transfer" but I am not quite sure if there is a kind of special meaning to it.

My doubt comes from this part of a scientific article:

In addition, the doping process coupled to a nanostructuredmaterial has improved the interest of this material in photo-electrocatalysis, due to improvement in the active surface area(reaction/interaction can be facilitated between the catalyst andthe interacting media) and excellent electric properties, once thecharges carriers transfer is mainly governed by the quantum con-finement phenomenon [20]. For this purpose TiO2nanotube arrays(TiO2NTs) have shown high structural organization and excellentelectron percolation based on vectorial charge transfer between interfaces

2014 Enhanced photoelectrocatalytic degradation of an acid dye withboron-doped TiO2nanotube anodes

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Marco
 
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An answer from a non-expert like myself: Did you read or skim ref [20]? "quantum confinement phenomenon" seems like the operative phrase just from context. Could be channeling along crystal axis? Just a wild guess.
 
I'm not an expert here neither, but as far as I can see from various sources, it seems to mean charge transfer occurring through a certain interface (molecule-to-molecule, particle-to-particle, grain-to-grain, wall-to-wall, etc.).

I am a bit knowledgeable in charge transfers due to the nature of my research, but I have never heard of the term"vectorial charge transfer". The term "vectorial charge transfer" does seem like a legitimate term since quick google scholar search shows that the first usage was in 1979, and has been used for quite some time.