Jin‐Hyun Kim
KAIST 기계공학과 · 공학
김진현 교수의 연구실은 광촉매와 생물촉매를 융합한 지속 가능한 화학합성 기반 기술을 연구하고 있습니다. 특히 빛을 이용한 NADH 재생을 통해 오래된 효소 반응을 재활성화하고, CO₂ 전환, 리그닌 분해, 불포화 결합의 에너지 효율적 수소화 등 환경 친화적인 반응을 실현합니다. 고도화된 광전해 촉매 시스템과 나노소재를 활용한 생물유기화학적 반응 설계가 핵심입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Light-driven activation of redox enzymes is an emerging route for sustainable chemical synthesis. Among redox enzymes, the family of Old Yellow Enzyme (OYE) dependent on the nicotinamide adenine dinucleotide cofactor (NADH) catalyzes the stereoselective reduction of α,β-unsaturated hydrocarbons. Here, we report OYE-catalyzed asymmetric hydrogenation through light-driven regeneration of NADH and its analogues (mNADHs) by N-doped carbon nanodots (N-CDs), a zero-dimensional photocatalyst. Our spect
Nicotinamide adenine dinucleotide (NAD<sup>+</sup>) is a key redox compound in all living cells responsible for energy transduction, genomic integrity, life-span extension, and neuromodulation. Here, we report a new function of NAD<sup>+</sup> as a molecular photocatalyst in addition to the biological roles. Our spectroscopic and electrochemical analyses reveal light absorption and electronic properties of two π-conjugated systems of NAD<sup>+</sup>. Furthermore, NAD<sup>+</sup> exhibits a robus
A robust, scalable FeOOH/BiVO<sub>4</sub>/Cu(In,Ga)Se<sub>2</sub> tandem structure achieves unbiased, long-term photobiocatalytic conversion of CO<sub>2</sub> to formate.
Abstract Light‐driven activation of redox enzymes is an emerging route for sustainable chemical synthesis. Among redox enzymes, the family of Old Yellow Enzyme (OYE) dependent on the nicotinamide adenine dinucleotide cofactor (NADH) catalyzes the stereoselective reduction of α,β‐unsaturated hydrocarbons. Here, we report OYE‐catalyzed asymmetric hydrogenation through light‐driven regeneration of NADH and its analogues (mNADHs) by N‐doped carbon nanodots (N‐CDs), a zero‐dimensional photocatalyst.
The pulp and paper manufacturers generate approximately 50 million metric tons of lignin per annum, most of which has been abandoned or incinerated because of lignin's recalcitrant nature. Here, we report bias-free photoelectrochemical (PEC) oxidation of lignin coupled with asymmetric hydrogenation of C═C bonds. The PEC platform consists of a hematite (α-Fe<sub>2</sub>O<sub>3</sub>) photoanode and a silicon photovoltaic-wired mesoporous indium tin oxide (Si/<i>meso</i>ITO) photocathode. We subst
