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Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
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Switchable catalysis and CO2 sensing by reduction resistant, luminescent copper-thiolate complexes
Satya Ranjan Sahoo1,2, Debkumar Bera1,2, Sumit Saha1,2
1Materials Chemistry Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, Odisha 751013, India. ngoswami@immt.res.in.
Nanoscale
|November 30, 2022
Summary
Researchers developed a novel copper-thiolate complex with switchable catalytic and photoluminescence (PL) properties. This pH-responsive material shows potential for sensing applications and enhanced catalytic activity.
Area of Science:
- Materials Science
- Coordination Chemistry
- Nanotechnology
Background:
- Metal-thiolate complexes are crucial for synthesizing metal nanoclusters.
- Understanding structure-property relationships is key for practical applications.
Purpose of the Study:
- Synthesize a copper-thiolate complex with switchable catalytic and photoluminescence (PL) properties.
- Investigate its pH-responsive behavior for sensing and catalysis.
Main Methods:
- Synthesis of a copper-thiolate complex.
- pH-dependent characterization of photoluminescence (PL) and catalytic activity.
- Investigation of structural states and copper oxidation states.
Main Results:
- The complex exhibits distinct cyan and light green PL at basic and acidic pH, respectively.
- pH-responsive PL enables pH and CO2 sensing.
- Catalytic activity for 4-nitrophenol reduction and TMB oxidation is enhanced over 1000-fold upon switching from basic to acidic conditions.
Conclusions:
- The copper-thiolate complex demonstrates reversible switching of catalytic and PL properties based on pH.
- Its distinct structural states are responsible for the switchable behavior.
- This redox-switchable complex holds promise for diverse applications in sensing and catalysis.
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