Research summary
Energy-storage and photocatalytic materials are the focus. An Advanced Materials review introduces representative electrochemical energy-storage materials for batteries and supercapacitors and frames their role in efficient renewable-energy use [1]. Co3O4 nanoparticles anchored on graphene sheets (10-30 nm, used as inter-sheet spacers) showed superior Li-ion battery anode performance with large reversible capacity, good cyclability and rate capability through synergistic use of conductive graphene and active Co3O4 [3]. Nitrogen- or boron-doped graphene was used as a high-power high-energy Li-ion anode with reversible capacity above 1,040 mAh/g at 50 mA/g and stable high-rate cycling [4]. A 3D aperiodic hierarchical porous graphitic carbon, composed of macroporous ion reservoirs, ion-transport channels and localized graphitic walls, was developed as a high-rate supercapacitor electrode [6]. A graphene-foam composite with density 0.06 g/cm3 achieved EMI shielding effectiveness of 30 dB and specific effectiveness of 500 dB cm3/g while remaining flexible under repeated bending [7]. In photocatalysis, graphene-like g-C3N4 nanosheets about 2 nm thick were prepared by thermal oxidation etching, with specific surface area 306 m2/g, a 0.2 eV bandgap increase and improved in-plane charge transport [2]; sulfur-doped graphitic C3N4 was reported to feature an enlarged valence bandwidth combined with elevated conduction band minimum that enables otherwise unfavorable photoreactions [5].
Recent publications
- The reduction of graphene oxideDOI
- Advanced Materials for Energy StorageDOI
- Anatase TiO2 single crystals with a large percentage of reactive facetsDOI
- Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour depositionDOI
- Graphene‐Like Carbon Nitride Nanosheets for Improved Photocatalytic ActivitiesDOI
- Graphene Anchored with Co3O4 Nanoparticles as Anode of Lithium Ion Batteries with Enhanced Reversible Capacity and Cyclic PerformanceDOI
- Doped Graphene Sheets As Anode Materials with Superhigh Rate and Large Capacity for Lithium Ion BatteriesDOI
- Unique Electronic Structure Induced High Photoreactivity of Sulfur-Doped Graphitic C3N4DOI
- 3D Aperiodic Hierarchical Porous Graphitic Carbon Material for High‐Rate Electrochemical Capacitive Energy StorageDOI
- Lightweight and Flexible Graphene Foam Composites for High‐Performance Electromagnetic Interference ShieldingDOI
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How to apply
Email Hui–Ming Cheng 6-12 months before your application deadline. Read several recent papers and reference specific work in your message. Use our how to email a Japanese professor guide for the proven email structure.
For applications via MEXT scholarship: see our MEXT 2027 complete guide and university-specific University Recommendation track.
External profiles
- ORCID: https://orcid.org/0000-0002-5387-4241
- OpenAlex: openalex.org
Profile compiled from public sources (Researchmap, OpenAlex, Tohoku University faculty directory). Last refreshed 2026-05. Report incorrect information.