Quantum Control of Ultrafast Laser-Driven Isomerization Reactions: Proton Transfer and Selective Preparation of Enantiomers

2003 ◽  
pp. 189-198 ◽  
Author(s):  
Nadja Došlić ◽  
Yuichi Fujimura ◽  
Leticia González ◽  
Kunihito Hoki ◽  
Dominik Kröner ◽  
...  
Keyword(s):  
Proton Transfer ◽  
Quantum Control ◽  
Ultrafast Laser

scholarly journals Quantum control of qubits and atomic motion using ultrafast laser pulses

2013 ◽  
Vol 114 (1-2) ◽  
pp. 45-61 ◽  
Author(s):  
J. Mizrahi ◽  
B. Neyenhuis ◽  
K. G. Johnson ◽  
W. C. Campbell ◽  
C. Senko ◽  
...  
Keyword(s):  
Quantum Control ◽  
Laser Pulses ◽  
Ultrafast Laser ◽  
Atomic Motion ◽  
Ultrafast Laser Pulses

Ultrafast laser processing of ceramics: Comprehensive survey of laser parameters

2021 ◽  
Vol 33 (1) ◽  
pp. 012009
Author(s):  
Aiko Narazaki ◽  
Hideyuki Takada ◽  
Dai Yoshitomi ◽  
Kenji Torizuka ◽  
Yohei Kobayashi
Keyword(s):  
Laser Processing ◽  
Ultrafast Laser ◽  
Laser Parameters ◽  
Comprehensive Survey

An NADH-Inspired Redox Mediator Strategy to Promote Second-Sphere Electron and Proton Transfer for Cooperative Electrochemical CO2 Reduction Catalyzed by Iron Porphyrin

2020 ◽  
Author(s):  
Peter T. Smith ◽  
Sophia Weng ◽  
Christopher Chang
Keyword(s):  
Proton Transfer ◽  
Co2 Reduction ◽  
Iron Porphyrin ◽  
Redox Mediators ◽  
Reservoir Properties ◽  
Proton Reduction ◽  
Electrochemical Co2 Reduction ◽  
Starting Point ◽  
Rate Improvement ◽  
Molecular Catalysts

We present a bioinspired strategy for enhancing electrochemical carbon dioxide reduction catalysis by cooperative use of base-metal molecular catalysts with intermolecular second-sphere redox mediators that facilitate both electron and proton transfer. Functional synthetic mimics of the biological redox cofactor NADH, which are electrochemically stable and are capable of mediating both electron and proton transfer, can enhance the activity of an iron porphyrin catalyst for electrochemical reduction of CO<sub>2</sub> to CO, achieving a 13-fold rate improvement without altering the intrinsic high selectivity of this catalyst platform for CO<sub>2</sub> versus proton reduction. Evaluation of a systematic series of NADH analogs and redox-inactive control additives with varying proton and electron reservoir properties reveals that both electron and proton transfer contribute to the observed catalytic enhancements. This work establishes that second-sphere dual control of electron and proton inventories is a viable design strategy for developing more effective electrocatalysts for CO<sub>2</sub> reduction, providing a starting point for broader applications of this approach to other multi-electron, multi-proton transformations.

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