| First letter | Keywords | Number |
|---|
| 0-9 | 3D printing (2), 3D bioprinting (2), 3D protein immobilization (1), 3DIC (1), 2,2'-bipyridine (1), 13C labeling (1) etc. | 11 |  |
|---|
| A | adsorption (10), Active matter (4), AI (3), Ammonia Cracking (3), air separation (3), Amine (3) etc. | 163 | |
|---|
| B | Biomass (6), Bubble rise motion (2), Biodegradable polymer (2), Biopharmaceuticals (2), Bioethanol (2), Bubble (1) etc. | 92 | |
|---|
| C-CH | Catalyst (11), CFD (8), Carbon dioxide (8), carbon nanotube (4), Carbon capture (3), Cellulose (3) etc. | 157 | |
|---|
| CI-CZ | CO2 capture (11), Crystallization (11), CO2 electrolysis (6), CO2 (3), coating (3), CO2 absorption (3) etc. | 187 | |
|---|
| D | Deep eutectic solvent (12), direct air capture (8), drying (6), Drop-in fuel (5), degradation (4), Drug delivery system (3) etc. | 150 | |
|---|
| E | emulsion (8), Extraction (6), Electrolysis (4), Electrocatalyst (4), electrodialysis (4), Enzyme (3) etc. | 133 | |
|---|
| F | Fluidized bed (4), Fuel Cell (4), Fine Bubble (4), Flame Spray Pyrolysis (4), Freezing (3), Fischer-Tropsch Synthesis (3) etc. | 121 | |
|---|
| G | Gasification (4), Gold (4), gas separation (3), gas sensor (3), gold nanoparticle (3), Gold Nanoparticles (3) etc. | 81 | |
|---|
| H | Hydrogen production (16), hydrogel (7), Hydrogen (7), HSP (3), hydrogenation (3), Hydrolysis (3) etc. | 140 | |
|---|
| I | Interfacial polymerization (10), Ionic liquid (6), Interface (4), in-situ observation (2), Independent Protection Layer (2), Iron (2) etc. | 96 | |
|---|
| J | Janus particle (2), jam (1), Japanese Traditional Company (1) | 4 | |
|---|
| K | Kinetics (2), Kinetic Analysis (1), Komagataella phaffii (1), kinetic model (1), Kinetic analysis of hydrodefluorination (1), K promotion (1) etc. | 7 | |
|---|
| L | lithium-ion battery (4), liposome (4), liquid-liquid phase separation (3), Liquid Crystal (3), LLM (3), lipid assembly (3) etc. | 97 | |
|---|
| M-MH | Machine Learning (31), metal-organic frameworks (15), Methanation (8), Membrane (6), Metal-organic framework (6), Membrane separation (4) etc. | 166 | |
|---|
| MI-MZ | mixing (9), MOF (5), molecular dynamics (4), Microwave (4), Microcapsule (3), microwave heating (3) etc. | 114 | |
|---|
| N | Numerical Simulation (5), Ni catalyst (3), Nanoparticle (3), Nickel (3), Nanoparticles (3), nanofiber (3) etc. | 81 | |
|---|
| O | Organic solvent nanofiltration (5), organic solvent reverse osmosis (5), Oxygen evolution reaction (2), Organosilica membrane (2), Optimization (2), Oxygen-enriched air (2) etc. | 65 | |
|---|
| P-PH | Peptide (8), PFAS (7), Photocatalyst (6), pervaporation (4), Phase Equilibria (3), Phase Change Material (3) etc. | 115 | |
|---|
| PI-PZ | Process simulation (6), Polyamide membrane (5), polymer electrolyte fuel cell (5), Plant oil deoxygenation (5), Protein (4), Pyrolysis (4) etc. | 182 | |
|---|
| Q | QCM (2), quartz crystal microbalance (2), quality (1), Quincke Roller (1), Quantitative Evaluation (1), Quality management (1) etc. | 9 | |
|---|
| R | Recycling (4), rheology (3), Redox (2), Rare earth (2), Renewable energy (2), Reverse osmosis (2) etc. | 73 | |
|---|
| S-SO | simulation (7), self-assembly (6), silica (4), Separation (4), solid oxide fuel cell (3), Solvent extraction (3) etc. | 136 | |
|---|
| SP-SZ | surfactant (7), Startup (6), supercritical water (4), Supercritical carbon dioxide (4), Structured catalyst (4), Surface modification (4) etc. | 134 | |
|---|
| T | thermal conductivity (3), transfer learning (3), transdermal delivery (3), Taylor-Couette Flow (3), Thermodynamic Properties (2), Titanium oxide (2) etc. | 73 | |
|---|
| U | Upcycling (5), Ultrafine Bubble (4), UiO-66 (2), Ultrasound (2), US Tech Company (1), Ultrasonic process (1) etc. | 29 | |
|---|
| V | Viscosity (6), Viscoelastic fluid (4), Viscoelasticity (2), Value Chain (2), Vapor-liquid equilibria (2), Velocity-profiling-assisted rheometry (1) etc. | 37 | |
|---|
| W | Woody biomass (8), Water electrolysis (4), Waste plastics (3), Water Treatment (2), Water electrolyzer (2), Wet Spinning (1) etc. | 42 | |
|---|
| X | XPS analysis (1), X-ray CT (1), X-type zeolite membrane (1) | 3 | |
|---|
| Y | Yeast promoter engineering (1), YSZ (1) | 2 | |
|---|
| Z | zeolite (10), zwitterionic polymer (2), Zr-MFI (1), zero-emission model (1), Zeolitic adsorbent (1), Zwitterionic nanofiltration membrane (1) etc. | 30 | |
|---|
| 非英数字 | * (3) | 3 | |
|---|
