Sungkyunkwan University · Energy
Professor Yongteng Qian's research lab specializes in the design and synthesis of advanced functional nanomaterials for sustainable energy and environmental applications. The lab focuses on developing novel photocatalysts, electrocatalysts, and nanogenerators based on metal-organic frameworks (MOFs), transition metal dichalcogenides, and heterostructured nanomaterials. Key research directions include phase engineering, defect modulation, and interfacial microenvironment control to enhance catalytic and energy conversion performance. The lab also explores applications in hydrogen evolution, water splitting, environmental remediation, and high-performance flexible energy harvesters.
Figures are computed from collected data and may differ slightly.
Abstract Photocatalysis is considered to be a green and environment‐friendly technology since it can convert solar energy into other types of chemical energies. Over the past several years, metal‐organic frameworks (MOFs)‐based photocatalysts have received remarkable research interest due to their unique morphology, high photocatalytic performance, good chemical stability, easy synthesis, and low cost. In this review, the synthetic strategies of developing MOFs‐based photocatalysts are first int
Herein, we report the successful synthesis of poly(dimethylsiloxane)/ZnO nanoflakes/three-dimensional graphene (PDMS/ZnO NFs/3D Gr) heterostructures using Ni foams as the template substrate via a facile route, while adapting a rational material design for a high-performance energy-harvester application. The PDMS/ZnO NFs/3D Gr heterostructure-based hybrid energy harvester simultaneously exploits the piezoelectric effect and triboelectrification and shows peak-to-peak output voltages up to 122 V a
Interfacial microenvironment modulation has been proven to be a promising route to fabricate highly efficient catalysts. In this work, the lattice defect-rich NiS<sub>2</sub> /MoS<sub>2</sub> nanoflakes (NMS NFs) electrocatalysts are successfully synthesized by a simple strategy. Benefiting from the abundant lattice defects and modulated interfacial microenvironment between NiS<sub>2</sub> and MoS<sub>2</sub> , the prepared NMS NFs show superior catalytic activity for water splitting. Particular
Metal–organic framework‐based compounds have recently gained great attention because of their unique porous structure, ordered porosity, and high specific surface area. Benefiting from these superior properties, metal–organic framework‐based compounds have been proven to be one of the most potential candidates for environmental governance and remediation. In this review, the different types of metal–organic framework‐based compounds are first summarized. Further, the various environmental applic
A high output flexible triboelectric nanogenerator was successfully fabricated through a facile synthetic route which can achieve a high output power density of 0.65 mW cm<sup>−2</sup>.
Abstract Phase engineering is an efficient strategy for enhancing the kinetics of electrocatalytic reactions. Herein, phase engineering was employed to prepare high‐performance phosphorous‐doped biphase (1T/2H) MoS 2 (P‐BMS) nanoflakes for hydrogen evolution reaction (HER). The doping of MoS 2 with P atoms modifies its electronic structure and optimizes its electrocatalytic reaction kinetics, which significantly enhances its electrical conductivity and structural stability, which are verified by
Featured with the attractive properties such as large surface area, unique atomic layer thickness, excellent electronic conductivity, and superior catalytic activity, layered metal chalcogenides (LMCs) have received considerable research attention in electrocatalytic applications. In this review, the approaches developed to synthesize LMCs-based electrocatalysts are summarized. Recent progress in LMCs-based composites for electrochemical energy conversion applications including oxygen reduction
• Hierarchical CoS 2 /MoS 2 nanoflakes were successfully grown on graphene (CMSGr). • Hierarchical morphology provides more reaction sites and abundant charge transfer pathways. • The optimized CMSGr catalyst presents low overpotentials of 53 and 255 mV for HER and OER. • The optimized CMSGr catalyst shows a low voltage of 1.55 V for water splitting. Construction of cost-efficient and high-performance overall water splitting electrocatalysts for generating hydrogen and oxygen has recently receiv
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