Title

ONE-DIMENSIONAL NANOSTRUCTURED MATERIALS FOR ELECTROCHEMICAL ENERGY STORAGE APPLICATIONS

Alternative Title

전기화학적 에너지 저장장치의 적용을 위한 1 차원 나노 구조 물질

DGIST Authors

Jitendra Samdani ; Sangaraju Shanmugam ; Yun Hee Jang

Advisor

상가라쥬 샨무감

Co-Advisor(s)

Yun Hee Jang

Issued Date

2021

Awarded Date

2021/02

Citation

Jitendra Samdani. (2021). ONE-DIMENSIONAL NANOSTRUCTURED MATERIALS FOR ELECTROCHEMICAL ENERGY STORAGE APPLICATIONS. doi: 10.22677/thesis.200000362641

Type

Thesis

Subject

1D nanostructured materials, MnCoOx@NCNFs, titanium oxynitride, intercalation pseudocapacitance, TiON-MnCo2O4, 1D 나노구조 물질, 티타늄 산화 질화물, 인터칼레이션 의사 커패시턴스

Table Of Contents

List of Contents

Abstract … i
List of Contents…. iii

CHAPTER – I. Introduction
1.1 The need for energy storage……………………………………. 1
1.2 Energy storage devices/systems…………………………………. 2
1.3 Mechanical energy storage………………………………………. 3
1.4 Thermal energy storage…………………………………………. 4
1.5 Electrochemical energy storage (EES)…………………………. 5
1.5.1 Batteries………………………………………………… 5
1.5.2 Electrochemical capacitors……………………………. 10
1.6 Li-ion battery Vs supercapacitors………………………………. 11
1.7 Electrode Material for electrochemical storage device…………. 14
1.7.1 Heteroatom doped (B, N, S, and P) carbon material…… 14
1.7.2 Carbon – metal oxide composite………………………. 18
1.8 Electrode material for intercalation pseudocapacitance mechanism……………………………………………………… 19
1.8.1 Nitridation of TiO2……………………………………. 20
1.9 Dimensionality of the nano-material…………………………… 21
1.10 Objectives of the thesis………………………………………… 24


CHAPTER – II. Experimental Methodology
2.1 Reagents………………………………………………………. 25
2.2 Synthesis of N-doped porous carbon nanofiber (N-pCNF) …… 25
2.2.1 Synthesis of ZIF-8……………………………………. 26
2.3 Synthesis of MnCoOx@NCNF and NCNF……………………. 26
2.4 Synthesis of heterostructured TiON-MnCo2O4 composite……. 27
2.4.1 Synthesis of titanium oxynitride (TiON) nanorods……. 27
2.4.2 Synthesis of 1D titanate precursor……………………. 28
2.5 Material characterization………………………………………… 28
2.6 Electrochemical measurements…………………………………. 29
2.6.1 Li-ion battery…………………………………………… 29
2.6.2 Supercapacitor………………………………………… 30
2.7 Fabrication of CR2032 coin cell………………………………… 32

CHAPTER – III. The Identification of Specific N-Configuration Responsible of Li-Ion Storage In N-Doped Porous Carbon Nanofiber: An Ex-Situ Study
3.1 Introduction……………………………………………………… 34
3.2 Results and discussion.………………………………………… 37
3.2.1 Material characterization.……………………………… 37
3.2.2 Electrochemical measurements…………………………. 41
3.2.3 Ex-situ characterizations………………………………. 49
3.3 Summary………………………………………………………… 69

CHAPTER – IV. A composite of Manganese Cobalt Oxide with Nitrogen Doped Carbon Nanofiber as an Anode for Li-Ion Battery
4.1 Introduction………………………………………………………. 71
4.2 Results and discussion…………………………………………… 73
4.2.1 Material characterization……………………………… 76
4.2.2 Electrochemical performance…………………………. 84
4.3 Summary………………………………………………………… 95

CHAPTER – V. Synthesis of Titanium Oxynitride Nanorods and its Composite with Manganese Cobalt Oxide as High-Performance Electrode Materials for Supercapacitor Devices
5.1 Introduction……………………………………………………… 97
5.2 Results and discussion…………………………………………… 99
5.2.1 Synthesis mechanism…………………………………… 99
5.2.2 Optimization of nitridation temperature………………. 101
5.2.3 TiON nanorods-MnCo2O4 composite.…………………. 109
5.2.4 Electrochemical performance of TiON 114
5.2.5 Electrochemical performance of MCO and TiON-900-MCO………………………………………………… 121
5.4 Summary………………………………………………………… 130

CHAPTER – VI. Conclusion and Future Perspective 132

References 136

국 문 요 약 문 164

Annexure 166

Acknowledgement 200

URI

http://dgist.dcollection.net/common/orgView/200000362641
http://hdl.handle.net/20.500.11750/16659

DOI

10.22677/thesis.200000362641

Degree

Doctor

Department

Energy Science & Engineering

Publisher

DGIST

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