High-resolution electrochemical STM of redox metalloproteins

Elliott, Martin

doi:10.1016/j.coelec.2017.08.007

Cited by 6 publications

(3 citation statements)

References 64 publications

(67 reference statements)

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“…Since its inception, STM has proven to be extremely powerful for studying surface topography and electronic structure down to the atomic level, including in electrochemical environments . The core operating principle of STM involves the approach of an extremely (atomically) sharp metallic tip into close proximity to a conducting sample surface, with a bias applied between the two.…”

Section: Ec-stmmentioning

confidence: 99%

Nanoscale Electrochemical Mapping

et al. 2018

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Section: Ec-stmmentioning

confidence: 99%

Nanoscale Electrochemical Mapping

et al. 2018

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“…When the tip of the probe is close enough to the surface of the sample and a potential difference is applied between the probe and the sample, the electrons can cross the energy barrier and travel from one electrode to the other to form a current, which is known as tunneling current. [71,72] Typically, the distance between the tip and the sample is between 0.5~2.0 nm. EC-STM has two test modes: constant current and constant height mode.…”

Section: In-situ Electrochemical Scanning Tunneling Microscopymentioning

confidence: 99%

In‐Situ Characterization Technologies for Electrocatalytic Reduction nitrate to Ammonia on Copper‐Based Catalysts

Fu,

Sun,

et al. 2024

ChemCatChem

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The excess nitrate (NO3‐) in the water mainly comes from agricultural fertilization and industrial wastewater, which breaks the nitrogen balance and poses a serious threat to the environment and human health. Driven by renewable energy, the electrocatalytic reduction of NO3‐ to ammonia (NH3) (ENO3RA) is an environmentally friendly and sustainable technology. Due to its special structure, copper (Cu) is currently one of the best catalysts for ENO3RA, but the reaction mechanism and the structure‐activity relationships of catalysts are still not clear enough. In‐situ characterization is a powerful tool to gain insight into the reaction process. This review introduces several types of in‐situ techniques such as in‐situ XAS, in‐situ FTIR and in‐situ DEMS, summarizes five pathways for converting *NO as the key intermediate to NH3 during ENO3RA on Cu‐based catalysts. The research progress of Cu‐based electrocatalysts in recent years is sorted out from the aspects of composition and structure, and the catalytic mechanisms were discussed with the help of in‐situ characterization technologies. This review would be of help to provide reference characterization methods for exploring the mechanism and the design of electrocatalysts for ENO3RA.

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“…(B) Schematic setup of an electrochemical scanning tunnelling microscope. Reprinted with permission from reference[36]. (C) A solid-state protein ensemble junction, with a conducting probe atomic force microscope used as a gating electrode.…”

mentioning

confidence: 99%