Mục lục
Foreword xi
Preface xiii
1 Introduction of the Metastable-Phase Materials 1
Qi Shao and Mingwang Shao
1.1 Introduction 1
1.2 What Are Metastable-Phase Materials? 1
1.3 The Categories of Metastable-Phase Materials 2
1.4 The Influence on Polymorphs of Materials 6
1.5 The Wide Applications of Metastable-Phase Materials 8
1.6 The Criterion for Stable-Phase and Metastable-Phase Materials 8
References 10
2 Synthetic Methodology 15
Qi Shao
2.1 Introduction 15
2.2 The Key for Synthesizing Metastable-Phase Materials 15
2.3 The Synthetic Methods for Synthesizing Metastable-Phase Materials 16
References 25
3 Characterization 33
Qi Shao
3.1 Introduction 33
3.2 Characterizations 33
3.3 How to Determine the Phase of Metastable-Phase 2D Metal Oxides 43
References 45
4 Metastable-Phase Metals 51
Qi Shao
4.1 Introduction 51
4.2 Noble Metals 51
4.3 Non-noble Metals 60
4.4 The Criterion to Determine the Stable-Phase and Metastable-Phase Metals 64
References 66
5 Metastable-Phase Oxide, Chalcogenide, Phosphide, and Boride Materials 71
Qi Shao
5.1 Introduction 71
5.2 Oxides 71
5.3 Chalcogenides 76
5.4 Others 78
References 80
6 Spin-Dependent Metastable-Phase Materials 85
Qi Shao
6.1 Introduction 85
6.2 Spin-Related Catalysis 85
6.3 Spin-Related Catalysts for Alkaline OER 88
6.4 Spin-Related Catalyst for Acidic OER 89
References 90
7 Crystallography, Design, and Synthesis of Two-Dimensional Metastable-Phase Oxides 93
Mingwang Shao and Qi Shao
7.1 Introduction 93
7.2 The Point Group, Crystal System, Crystal Lattice, and Space Groups of 2D Materials 93
7.3 The Possible Crystal Structures and Chemical Formula of 2D Metal Oxides 100
7.4 How to Prepare Metastable-Phase 2D Metal Oxides 119
7.5 2D Metastable-Phase Noble Metal Oxides 120
7.6 Metastable-Phase 2D Non-noble Metal Oxides 126
7.7 The Covalent Bond Behavior in Metastable-Phase 1T Metal Oxides 129
References 134
8 Electrocatalysis 141
Qi Shao
8.1 Introduction 141
8.2 Several Typical Electrochemical Reactions 141
8.3 Metastable-Phase Catalysts for Advanced Electrocatalysis 145
References 167
9 Photocatalysis 173
Mingwang Shao and Zhenhui Kang
9.1 Introduction 173
9.2 Fundamental Concepts of Photocatalysis 173
9.3 Metastable-Phase Catalysts and Photocatalysis 177
9.4 The Advantages and Disadvantages of Photocatalysis 182
References 183
10 Thermocatalysts 191
Qi Shao
10.1 Introduction 191
10.2 Several Typical Thermocatalytic Reactions 191
10.3 Metastable-Phase Catalysts for Thermocatalysis 193
References 201
Summary and Outlook 207
Index 209
