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Environmental Energy LAB

Battery / Secondary Battery / H2 Energy / MXene / Laser Plasma

Lab Leaders Professor Insik In Lab Leaders Professor Seung Jun Lee
WAVE FUSION LAB

Research Topic

RESEARCH TOPIC 01

Battery / Secondary Battery

Electrochemical energy storage and conversion are involved in everyday life through the application in portable electronics, electric vehicles, and energy storage grids in the form of batteries, supercapacitors, fuel cells, and so on. At EEL, the research group is trying to fill the gap between the fundamental aspects of energy storage and real-time usage in daily life for futuristic applications. The energy storage devices need keen development in the science and interfacial factors of the storage devices for effective utilization. The key areas of energy storage devices designed and developed at EEL are as follows. eover, using various computing logic, we are demonstrating the FeFET-PIM array with a high energy efficiency, which is evaluated by the system-level simulation.

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RESEARCH TOPIC 02

Hydrogen Energy

The world needs solutions for the ever-growing global warming issues due to the rapid utilization of fossil fuels, an eco-friendly and better solution is needed for energy production and utilization. Researchers are taking more efforts to solve the issues, in particular, the production of hydrogen in an eco-friendly way has been regarded as a very important technology that can reduce greenhouse gases. New materials and technologies are in the developing stage for a better and easy way to produce hydrogen. The catalysis process is the driving force for hydrogen production in an eco-friendly way. There are many catalysis technologies were discovered, and many technologies are applied to enhance the efficiency of hydrogen production. These technologies include catalyst surface modification, vacancy control, atomic unit engineering, band engineering with other materials, and surface grafting of co-catalysts. The developed catalysts are applied in hydrogen production systems as a photocatalyst, electrocatalyst, and photo-electrocatalyst to estimate the hydrogen production efficiency. Our research efforts are mainly focused on the 1) development of new catalyst and co-catalyst materials, 2) material structure analysis, and 3) catalyst efficiency evaluation.

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RESEARCH TOPIC 03

MXene

MXenes are a large family of two-dimensional materials with the general formula of Mn+1XnTx (n = 1-4), where M is a transition metal, X is carbon and/or nitrogen, and Tx denotes surface functional groups (-OH, -O, -F, etc.). MXenes exhibit several interesting properties such as metallic electrical conductivity, good aqueous dispersion stability, tunable work function, etc., which expanded their application potential to various fields. However, the spontaneous oxidation of MXene due to interaction with oxygen and water is a critical concern for the long-term storage of synthesized MXene and the ambient stability of MXene-based devices. In addition, good dispersion stability of MXenes is restricted to aqueous medium, which is another concern as most of the solution-based approaches prefer volatile organic solvents. Hence, our research group is mainly devoted to the synthesis of high-quality MXene nanosheets and functionalize their surface with organic molecules, polymers, nanomaterials to obstruct the spontaneous oxidation of MXenes as well as to enable the excellent dispersion stability in various organic solvents. Further, we test the application potential of developed high quality aqueous and organic solvent-based MXene inks in various fields such as Photodetectors, Printed Electronics (logic gates and memory cells), E-textiles/Hydrogels for sensing applications, etc.

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RESEARCH TOPIC 04

Laser Plasma

The global energy crisis is increasing the demand for innovative materials with high purity and functionality for the development of clean energy production and storage. The development of novel photo- and electrocatalysts significantly depends on synthetic techniques that facilitate the production of tailored advanced nanomaterials. The emerging use of pulsed laser in liquid synthesis has attracted immense interest as an effective synthetic technology with several advantages over conventional chemical and physical synthetic routes, including the fine-tuning of size, composition, surface, and crystalline structures, and defect densities and is associated with the catalytic, electronic, thermal, optical, and mechanical properties of the produced nanomaterials. Herein, we present an overview of the fundamental understanding and importance of the pulsed laser process, namely various roles and mechanisms involved in the production of various types of nanomaterials, such as metal nanoparticles, oxides, non-oxides, and carbon-based materials. We mainly cover the advancement of photo- and electrocatalytic nanomaterials via pulsed laser-assisted technologies with detailed mechanistic insights and structural optimization along with effective catalytic performances in various energy and environmental remediation processes. Finally, the future directions and challenges of pulsed laser techniques are briefly underlined. This study can exert practical guidance for the future design and fabrication of innovative pulsed laser-induced nanomaterials with fascinating properties for advanced catalysis applications.

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Publication

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Engineering Ti-MXene integrated interpenetrating polymer network based hybrid hydrogel electrolytes …

Aakash Carthick Radjendirane, Saraswathi Ramakrishnan, Saradh Prasad Rajendra, Kumaran Vediappan, Insik In, Seung Jun Lee, Subramania Angaiah,
652, 2025, Journal of Power Sources, 237660, 7.9,

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Surface functionalized MXene ink-enabled washable smart e-textiles with exceptional gas sensing prop…

Seonyeop Kim, Young Ho Park, Seongeun Lee, Arun S Nissimagoudar, Seung-Cheol Lee, Jeongmin Kim, B Yamunasree, Jeevan Kumar Reddy Modigunta, Tae Yun Ko, Miyeon Kwon, Juhea Kim, Seung Jun Lee, G Murali, Wonseok Lee, Insik In,
, 2025, Materials Today, 22.0,

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Mechanically Endurable Ti3C2Tx MXene Incorporated P (AM-AA) Hybrid Hydrogel Electrolyte with Enhance…

Aakash Carthick Radjendirane, Senthilkumar Ramasamy, Saradh Prasad Rajendra, G Murali, Insik In, Seung Jun Lee, Subramania Angaiah,
, 2025, Electrochimica Acta, 146368, 5.6,

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Fabrication of NiV2O6/V2CTx Nanohybrid as a High-Performance Cathode Material for Aqueous Zn-Ion Bat…

Saradh Prasad Rajendra, G Murali, Insik In, Seung Jun Lee, Subramania Angaiah,
39, 18, 2025, Energy & Fuels, 8718-8728, 5.3,

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Electrocatalytic Activity of Multifunctional Mn-Doped SrFeO3-δ/Ti-MXene Nanohybrid for Efficient Ove…

Saravanan Kartigueyane, Arunachala Kumar SP, Mohamad S AlSalhi, Saradh Prasad Rajendra, Insik In, Seung Jun Lee, Chao Yan, Subramania Angaiah,
8, 8, 2025, ACS Applied Energy Materials, 5004-5016, 5.5,

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Carbon dots as multifunctional additives in zinc-ion batteries: progress, challenges, and opportunit…

Myo Thandar Hlaing, Mohan Gopalakrishnan, Supareak Praserthdam, Wei-Ren Liu, Ahmad Azmin Mohamad, Saravanan Rajendran, Insik In, Soorathep Kheawhom,
509, 2025, Chemical Engineering Journal, 161327, 13.2,

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Monitoring Interfacial Dynamics of a Zinc‐Ion Battery Cathode Using In Situ Grazing Incidence X‐Ray …

Wathanyu Kao‐ian, Phonnapha Tangthuam, Pinit Kidkhunthod, Wanwisa Limphirat, Jintara Padchasri, Nicolas Aubert, Gianluca Ciatto, Insik In, Kevin C‐W Wu, Soorathep Kheawhom,
, 2025, Small Methods, e00871, 9.1,

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Corrigendum to “Flashlight treatment for instantaneous structuring of dense MXene film into porous M…

Jeongsoo Hong, Changung Paeng, Seongmin Park, Insik In, Huijin Lee, Ninad B Velhal, Tae Ho Yun, Changshin Jo, Changyong Yim,
497, 2024, Chemical Engineering Journal, 154466, 13.2,

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Ultrasensitive and highly selective NO2 gas sensing of porous MXene nanoribbon assemblies

B Yamunasree, Seonyeop Kim, Young Ho Park, Jeevan Kumar Reddy Modigunta, Jeongmin Kim, Anil Kumar Astakala, Seung Jun Lee, G Murali, Wonseok Lee, Insik In,
228, 2024, Carbon, 119364, 11.6,

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Decoding Upconversion-Emitting Phase in Complex Composites Through Single-Particle-Level Upconversio…

Yuwaraj K Kshetri, Bina Chaudhary, Jongwoo Kim, Sang Hwan Nam, G Murali, Jun Zhou, Shijie Wang, Yuan Ping Feng, Jinhyuk Choi, Insik In, Shuki Torii, Takashi Kamiyama, Soo Wohn Lee, Tae-Ho Kim,
20, 2024, Small, e2402528, 12.1,

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Unveiling the role of catalytically active MXene supports in enhancing the performance and durabilit…

Young Sang Park, Ari Chae, Gwan Hyun Choi, Swetarekha Ram, Seung-Cheol Lee, Satadeep Bhattacharjee, Jiyoon Jung, Hyo Sang Jeon, Cheol-Hee Ahn, Seung Sang Hwang, Dong-Yeun Koh, Insik In, Taegon Oh, Seon Joon Kim, Chong Min Koo, Albert S Lee,
346, 2024, Applied Catalysis B: Environment and Energy, 123731, 21.1,

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Highly oxidation resistant and organic dispersible ligand functionalized MXene for triggering perfor…

Hari Haran Udhayakumar, Young Ho Park, Eunji Park, G Murali, Seongmin Park, Jeongmin Kim, Jemin Yeon, Seung Jun Lee, Soyeon Kim, Huitae Yang, Jihoon Lee, Jeevan Kumar Reddy Modigunta, Insik In,
488, 2024, Chemical Engineering Journal, 150699, 13.2,

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Functionalized MXene ink enables environmentally stable printed electronics

Tae Yun Ko, Heqing Ye, G Murali, Seul-Yi Lee, Young Ho Park, Jihoon Lee, Juyun Lee, Dong-Jin Yun, Yury Gogotsi, Seon Joon Kim, Se Hyun Kim, Yong Jin Jeong, Soo-Jin Park, Insik In,
15, 1, 2024, Nature communications, 3459, 15.7,

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Flashlight treatment for instantaneous structuring of dense MXene film into porous MXene/TiO2 nanoco…

Jeongsoo Hong, Changung Paeng, Seongmin Park, Insik In, Huijin Lee, Ninad B Velhal, Tae Ho Yun, Changshin Jo, Changyong Yim,
484, 2024, Chemical Engineering Journal, 149598, 13.2,

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Instant Self‐Assembly of Functionalized MXenes in Organic Solvents: General Fabrication to High‐Perf…

Soobin Kim, Tae Yun Ko, Ajit K Jena, Arun S Nissimagoudar, Juyun Lee, Seongeun Lee, Taegon Oh, Yun Chan Kang, Insik In, Satadeep Bhattacharjee, Chong Min Koo, Seung‐Cheol Lee, Seon Joon Kim,
34, 11, 2024, Advanced Functional Materials, 2310641, 19.0,

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