Title

Photocatalytic Hydrogen Production from Magic-Sized Semiconductor Nanoclusters

Alternative Title

마법 크기 반도체 나노클러스터를 이용한 광촉매 수소 생산

DGIST Authors

Seunghyun Ji ; Jiwoong Yang ; Su-il In

Advisor

양지웅

Co-Advisor(s)

Su-il In

Issued Date

2025

Awarded Date

2025-02-01

Citation

Seunghyun Ji. (2025). Photocatalytic Hydrogen Production from Magic-Sized Semiconductor Nanoclusters. doi: 10.22677/THESIS.200000837532

Type

Thesis

Description

magic-sized clusters, suprastructures, hydrogen evolution reaction, photocatalyst, DFT

Table Of Contents

List of Contents
Abstract i

Ⅰ. Introduction 1
1.1 The necessity of photocatalysts for hydrogen production 1
1.2 Understanding Magic Sized Cluster (MSC) 2
1.3 Utilizing MSC as Photocatalysts for Hydrogen Production 3

II. Results and discussion 5
2.1 A Comprehensive Approach to the Synthesis of Suprastructures 5
2.2 Confirmation of Co2+ Doping in Co²⁺-doped (CdSe)13 Suprastructures 12
2.3 Tauc Plot and UPS-Based Band Alignment in Co2+-Doped (CdSe)13 Clusters 13
2.4 Photocatalytic Hydrogen Evolution in Co2+-Doped (CdSe)13 Suprastructures 17
2.5 Characterization of Chemical and Physical Changes in Co2+-Doped (CdSe)13
Suprastructures 23
2.6 DFT Study of Hydrogen Evolution Reaction in Co2+-Doped (CdSe)13 Clusters
with Bipyridine 29

III. Conclusion 40

IV. Experimental section 41

URI

http://hdl.handle.net/20.500.11750/58042
http://dgist.dcollection.net/common/orgView/200000837532

DOI

10.22677/THESIS.200000837532

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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