Ji-Jun Zou, PhD,is the Department Head of Chemical Technology and Chair Professor at the School of Chemical Engineering and Technology in Tianjin University, China. He has received several awards including Technological Leading Scholar of 10000 Talent project (2017), and Changjiang Young Scholar by the Ministry of Education (2016). An Associate Editor of RSC Advances, he has also authored or coauthored more than 150 papers and 30 patents.

Xiangwen Zhang, PhD, is the Director of Key Laboratory of advanced fuel and chemical propellant of Ministry of Education. His research interests include fuel processing technology and reaction engineering. He has authored/coauthored more than 300 papers and 30 patents.

Lun Pan, PhD, is an Associate Professor whose research interests focus on the design and synthesis of functional photocatalysts; their related modulation of morphology, facets, and surface defects; and their applications in photocatalysis, such as in photocatalytic isomerization for synthesis of advanced fuels. He has published more than 50 papers and 20 patents.

Preface xiii

About the Authors xv

Acknowledgments xvii

1 Introduction 1JiJun Zou

Reference 3

2 Development History and Basics of Aerospace Fuels 5Xiangwen Zhang and Tinghao Jia

2.1 Introduction 5

2.2 General Properties and Requirements of Aerospace Fuels 6

2.2.1 Density 7

2.2.2 LowTemperature Fluidity 8

2.2.2.1 Viscosity 8

2.2.2.2 Freezing Point 10

2.2.3 Thermal Oxidation Stability 11

2.2.4 Prediction of Jet Fuel Performance 12

2.3 Development of Aerospace Fuels 12

2.3.1 Aviation Gas Turbine Engine Fuels (Petroleum Fuels) 12

2.3.2 Development of Russian Aerospace Fuels 15

2.3.3 HighThermalOxidativeStability Fuels 15

2.3.4 Current Fuels 17

2.3.5 Future Fuels 19

2.4 HighEnergyDensity Fuels 21

2.4.1 RJ4 21

2.4.2 RJ5 and Related Fuels 22

2.4.3 JP10, JP9, and RJ7 22

2.4.4 Strained and Diamondoid Fuels 25

2.4.5 Gelled Fuels 26

2.5 Nonpetroleum Fuels 27

2.5.1 FT Fuels 28

2.5.2 Bioaviation Fuels 28

2.5.3 Perspectives 31

References 33

3 Design and Synthesis of HighDensity Polycyoalkane Fuels 39JiJun Zou and Chengxiang Shi

3.1 Introduction 39

3.2 Cycloaddition 40

3.2.1 Reaction Pathway 40

3.2.2 Cycloaddition Catalysts 44

3.3 Hydrogenation 50

3.3.1 Hydrogenation of Dicyclopentadiene 50

3.3.1.1 Hydrogenation Mechanism 50

3.3.1.2 Hydrogenation Catalysts 51

3.3.1.3 Hydrogenation Kinetics 54

3.3.2 Hydrogenation of Tricyclopentadiene 67

3.3.2.1 Hydrogenation Mechanism 67

3.3.2.2 Hydrogenation Catalysts 69

3.3.2.3 Hydrogenation Kinetics 70

3.4 Isomerization 74

3.4.1 Isomerization of Tetrahydrodicyclopentadiene 74

3.4.2 Isomerization of Tetrahydrotricyclopentadiene 81

3.5 Other Reactions and Procedures 90

3.5.1 Alternative IsomerizationHydrogenation Synthesis 90

3.5.2 OneStep Synthesis ofexoTetrahydrodicyclopentadiene 95

References 97

4 Design and Synthesis of HighDensity Diamondoid Fuels 101Lun Pan and Jiawei Xie

4.1 Introduction 101

4.2 Synthesis of Alkyl Diamondoids via AcidCatalyzed Rearrangement 102

4.3 Synthesis of Alkyl Diamondoids via ILCatalyzed Rearrangement 112

4.3.1 Rearrangement of Tetrahydrotricyclopentadiene 114

4.3.2 Rearrangement of Tetrahydrodicyclopentadiene 120

4.3.3 Rearrangement of Other Polycycloalkanes 127

4.3.4 Rearrangement of BiomassDerived Hydrocarbons 134

4.4 Synthesis of Alkyl Diamondoids via ZeoliteCatalyzed Rearrangement 135

4.5 Alkylation and Other Chemical Synthesis Methods 138

4.6 Basic Properties of Alkyl Diamondoids 142

References 144

5 Design and Synthesis of HighEnergy Strained Fuels 149JiJun Zou, Junjian Xie, Yakun Liu, and Chi Ma

5.1 Introduction 149

5.2 Quadricyclane Fuel 149

5.2.1 Properties and Synthesis of Quadricyclane 149

5.2.2 Homogeneous Photosensitizers 152

5.2.2.1 Triplet Sensitizer 152

5.2.2.2 TransitionMetalCompoundBased Sensitizer 153

5.2.3 Heterogeneous Photocatalysis 155

5.2.3.1 Zinc and Cadmium Oxides and Sulfides 155

5.2.3.2 Modified Zeolites 155

5.2.3.3 MetalDoped TiO2 156

5.2.3.4 TiContaining MCM41 161

5.2.3.5 Combination of Metal Doping and Framework Ti Species 164

5.2.3.6 Mechanism of Heterogeneous Photocatalysis 167

5.2.4 Utilization of Quadricyclane 168

5.3 Cyclopropane Fuel 170

5.3.1 Organometallic CarbenoidMediated Cyclopropanation 170

5.3.1.1 Zinc CarbenoidMediated Cyclopropanation 171

5.3.1.2 Samarium CarbenoidMediated Cyclopropanation 174

5.3.1.3 Lithium CarbenoidMediated Cyclopropanation 175

5.3.1.4 Metallic Aluminum CarbenoidMediated Cyclopropanation 177

5.3.2 Transition Metal CarbeneMediated Cyclopropanation 181

5.3.2.1 Diazomethane System 183

5.3.2.2 Copper Catalytic System 185

5.3.2.3 Other Transition Metal Catalyst Systems 187

5.3.3 Other Cyclopropanation Methods 190

5.3.4 Fuel Synthesis and Mechanism 190

5.3.4.1 Cyclopropanation ofendoDCPD with Monomeric IZnCH2I in Gas Phase 193

5.3.4.2 Cyclopropanation ofendoDCPD with Monomeric IZnCH2I in Diethyl Ether Solvent 197

5.3.4.3 Cyclopropanation ofendoDCPD with (ICH2)2Zn in Diethyl Ether Solvent 201

5.4 Spiro and Caged Fuels 202

5.4.1 SpiroFuels 203

5.4.2 PCU Monomer, Dimers, and Derivatives 209

5.4.2.1 PCU Monomer 209

5.4.2.2 PCU Dimers 210

5.4.2.3 PCU Derivatives 214

5.4.3 Cubane and Derivatives 218

5.4.4 Other Caged Fuels 222

References 224

6 Design and Synthesis of HighDensity Fuels from Biomass 241JiJun Zou and Genkuo Nie

6.1 Introduction 241

6.2 CarbonIncreasing Reaction Strategies 244

6.2.1 Chain and Ring Increasing by Hydroxyalkylation and Alkylation 244

6.2.1.1 Synthesis of Branched Monocyclic Hydrocarbons by Hydroxylalkylation and Alkylation 250

6.2.1.2 Synthesis of Branched Monocyclic Hydrocarbons by Alkylation 252

6.2.1.3 Synthesis of Branched Multicyclic Hydrocarbons by Alkylation 254

6.2.2 Chain and Ring Increasing by Aldol Condensation 256

6.2.2.1 Synthesis of Branched Monocyclic and Multicyclic Hydrocarbons by Aldol Condensation 256

6.2.2.2 Catalyst Design in the Synthesis of Bi to TetraFive/SixMembered Ring Hydrocarbons 260

6.2.3 Ring Increasing by DielsAlder Cycloaddition 260

6.2.3.1 Synthesis of Multicyclic Hydrocarbons Using Terpinenes 262

6.2.3.2 Synthesis of Branched Multicyclic Hydrocarbons Using 2MF 265

6.2.3.3 Synthesis of Branched Monocyclic Hydrocarbons Using Diacetone Alcohol 267

6.2.3.4 Synthesis of JP10 Using Furfuryl Alcohol 267

6.2.4 Ring Increasing by Oligomerization 267

6.2.4.1 Synthesis of Multicyclic Hydrocarbons Using Pinene 269

6.2.4.2 Synthesis of Multicyclic Hydrocarbons Using Cyclenes 271

6.2.5 Ring Increasing by Combined Reactions 272

6.2.5.1 Robinson Annulation 272

6.2.5.2 Reductive Coupling 274

6.2.5.3 Guerbet Reaction 275

6.2.6 Fused Cycle Constructing by Skeleton Rearrangement 275

6.2.7 Integrated Reaction Strategies 277

6.2.7.1 DualBed Catalyst System 278

6.2.7.2 OnePot Reaction 279

6.2.7.3 Multistep Coupling Reaction 280

6.2.7.4 Cellulose Coconversion with Polyethylene via Catalytically Combined Processes 283

References 283

7 Design and Synthesis of Nanofluid Fuels 291Lun Pan, XiuTianFeng E, Jinwen Cao, and Kang Xue

7.1 Introduction 291

7.2 Synthesis and Properties of Nanofluid Fuels 292

7.2.1 SingleStep Methods 293

7.2.1.1 Physical Methods 293

7.2.1.2 Chemical Methods 299

7.2.2 TwoStep Methods 303

7.3 Methods to Evaluate Stability of Nanofluids 305

7.3.1 Sedimentation Photograph Capturing 305

7.3.2 Sedimentation Balance Method 305

7.3.3 Centrifugation Method 305

7.3.4 Potential Measurement 306

7.3.5 UVVis Spectrophotometer 308

7.3.6 Light Scattering Method 310

7.3.7 ThreeOmega Method 310

7.4 Approaches to Enhance Stability of Nanofluids 310

7.4.1 Mechanical Mixing 311

7.4.2 pH Control 312

7.4.3 Surfactants 313

7.4.4 Surface Modification 313

7.5 Typical HighEnergy Nanofluid Fuels 315

7.5.1 BoronBased Nanofluids 315

7.5.1.1 Preparation of Stable BoroninJet Fuel Nanofluids 316

7.5.1.2 Dispersion of BoronBased Nanofluids 317

7.5.2 AluminumBased Nanofluids 320

7.6 Physical Properties of Nanofluid Fuels 322

7.6.1 Density and Energy 322

7.6.2 Viscosity 323

7.6.3 Surface tension 328

7.6.4 Latent Heat of Vaporization 329

7.6.5 Combustion Characteristics 331

7.6.6 Evaporation Characteristics 337

7.7 Formulation and Synthesis of Gelled Fuels 341

7.7.1 Gel Formulation 341

7.7.2 Gel Preparation and Gelation Mechanism 346

7.8 Rheological Behavior 348

7.9 Atomization Behavior 352

7.10 Combustion Behavior 356

References 361

8 Design and Synthesis of Green Hypergolic Ionic Liquid Fuels 377Xiangwen Zhang and YongChao Zhang

8.1 Introduction 377

8.2 Development History of Hypergolic Ionic Liquids 378

8.3 Physicochemical Properties of Hypergolic Ionic Liquids 379

8.3.1 Thermal Properties 379

8.3.2 Density 380

8.3.3 Viscosity 380

8.3.4 Heat of Formation 380

8.3.5 Ignition Delay Time 381

8.3.6 Specific Impulse 382

8.4 Hypergolic Ionic Liquids 382

8.4.1 Hypergolic Ionic Liquids Based on Dicyanamide Anions 382

8.4.2 Hypergolic Ionic Liquids Based on Nitrocyanamide Anions 397

8.4.3 Hypergolic Ionic Liquids Based on BoroniumBased and BH BondRich Anions 402

8.4.4 Hypergolic Ionic Liquids Based on Other Anions 421

References 431

9 Combustion Properties of Fuels and Methods to Improve Them 437Lun Pan and XiuTianFeng E

9.1 Introduction 437

9.2 Typical Equipment Used in Combustion Experiment 439

9.2.1 Rapid Compressor 439

9.2.2 Shock Tube 441

9.2.2.1 Heated Shock Tube 441

9.2.2.2 Aerosol Shock Tube 441

9.2.3 Hot Plate 446

9.2.4 Laser Ignition 447

9.2.5 ConstantVolume Strand Burner 447

9.3 Combustion and Ignition Characters 450

9.3.1 Ignition Probability 450

9.3.2 Ignition Temperature 450

9.3.3 Ignition Delay Time 453

9.3.4 Combustion Rate 455

9.4 Methods to Enhance Ignition and Combustion 458

9.4.1 Effect of NP Concentration on Ignition and Combustion 458

9.4.2 Effect of Surfactants or Dispersants on Ignition and Combustion 461

9.4.3 Effect of Nanoparticle Characteristics on Ignition and Combustion 462

9.5 Combustion Mechanism of Nanofluid Fuels 464

References 470

Index 475