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Recent progress in photocathode interface engineering for photoelectrochemical CO2 reduction reaction to C1 and C2+ products
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  • Jae Hak Kim,
  • Sung Hyun Hong,
  • ‪Sang Hyun Ahn,
  • Soo Young Kim
Jae Hak Kim
Korea University
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Sung Hyun Hong
Korea University
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‪Sang Hyun Ahn
Chung-Ang University
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Soo Young Kim
Korea University

Corresponding Author:[email protected]

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Photoelectrochemical (PEC) systems harness light absorption to initiate chemical reactions, while electrochemical reactions facilitate the conversion of reactants into desired products, ensuring more efficient and sustainable energy conversion in PECs. Central to optimizing the performance of PECs was the pivotal role played by interface engineering. This intricate process involved manipulating material interfaces at the atomic or nanoscale to enhance charge transfer, improve catalytic activity, and address limitations associated with bulk materials. The careful tuning of factors such as band gap, surface energy, crystallinity, defect characteristics, and structural attributes through interface engineering led to superior catalytic efficiency. Specifically, interface engineering significantly enhanced the efficiency of semiconductor-based PECs. Engineers strategically designed heterojunctions and manipulated catalyst surface properties to optimize the separation and migration of photogenerated charge carriers, minimizing recombination losses and improving performance overall. In this review, we categorized our discussion into five sections focusing on PECs and interface engineering, providing valuable insights into recent research trends. Overall, the synergy between PECs and interface engineering holds tremendous promise for advancing renewable energy technologies and addressing environmental challenges by offering innovative solutions for sustainable energy conversion and storage.
22 Feb 2024Assigned to Editor
22 Feb 2024Submission Checks Completed
23 Feb 2024Reviewer(s) Assigned
01 Apr 2024Review(s) Completed, Editorial Evaluation Pending