| First letter | Keywords | Number |
|---|
| 0-9 | 3D printing (3), 5-hydroxymethylfurfural (3), 3D imaging (1), 2,2'-bipyridine (1), 3DIC (1), 2'-Octoxyacetophenone (1) etc. | 10 |  |
|---|
| A | Adsorption (11), ammonia (7), atomic layer deposition (3), Aqueous two-phase system (3), Agglomeration (3), Antibody (3) etc. | 157 | |
|---|
| B | Biomass (5), Biomass gasification (3), bio-oil (3), Biomethanation (3), Biochar (3), Bioreactor (2) etc. | 90 | |
|---|
| C-CH | CFD (8), Carbon nanotube (8), catalyst (6), Carbon Neutral (6), carbon dioxide (5), CCS (5) etc. | 151 | |
|---|
| CI-CZ | CO2 capture (12), Crystallization (8), CO2 (7), Computational fluid dynamics (6), CO2RR (4), COSMO-SAC (4) etc. | 171 | |
|---|
| D | Deep eutectic solvent (6), deep learning (6), Deep Tech (5), Direct air capture (4), Dehydration (4), drying (4) etc. | 127 | |
|---|
| E | Electrocatalysts (5), Escherichia coli (5), Extraction (4), electrolysis (4), electrocatalyst (3), e-methane (2) etc. | 105 | |
|---|
| F | Fischer-Tropsch synthesis (2), Fischer-Tropsch (2), Flame spray pyrolysis (2), Fluid Mechanics (2), Fast Pyrolysis Bio-Oil (2), Flue gas (2) etc. | 68 | |
|---|
| G | Graphene (3), g-C3N4 (1), Gold nanoparticle (1), gel foams (1), Gas-liquid slug flow (1), Glass capillary microfluidic devices (1) etc. | 49 | |
|---|
| H | Hydrogen Production (14), Hydrogen (12), Hydrogel (7), Hydrogen storage (5), Hair regeneration medicine (2), hydrothermal (2) etc. | 129 | |
|---|
| I | I-V characteristics (2), ion gel (2), interfacial polymerization (2), interfacial affinity (2), Interfacial phase separation (1), Infrared absorption spectrum (1) etc. | 62 | |
|---|
| K | kernel method (1), key parameters (1), Kinetic Monte Carlo (1), Key group (1), kolbe electrolysis (1), Knowledge Management (1) etc. | 8 | |
|---|
| L | Lithium-ion batteries (3), liquid-liquid mixing (3), liposome (3), lithium-ion battery (3), Life cycle assessment (2), Lithium-ion battery recycling (2) etc. | 79 | |
|---|
| M-MH | Machine Learning (35), membrane (12), Metal-organic frameworks (11), Metabolic Engineering (9), mechanochemistry (5), Methane Fermentation (4) etc. | 153 | |
|---|
| MI-MZ | Molecular dynamics (12), Mixing (11), Molecular dynamics simulation (5), microfluidic device (3), Microalgae (3), Microchannel (2) etc. | 107 | |
|---|
| N | numerical simulation (12), nanoparticles (4), nanoparticle (4), neural network (3), Ni Catalyst (2), Nucleation (2) etc. | 86 | |
|---|
| O | optimization (4), organic chelating ligand (2), Operations and Maintenance (2), organic repair (1), Optimization of fed-batch cell culture process (1), Optical resolution (1) etc. | 45 | |
|---|
| P-PH | PFAS (6), Photocatalyst (3), pervaporation (3), peptide (2), particle size (2), phase equilibrium (2) etc. | 83 | |
|---|
| PI-PZ | Process simulation (7), Polymer (5), Process modeling (4), polymer blends (2), Polylactic acid (2), Plot Plan (2) etc. | 131 | |
|---|
| Q | Quadrupole Mass Spectrometry (1), quantitative visualization (1), Qualification system (1), Questionnaire Survey (1), Quantum computing (1) | 5 | |
|---|
| R | recycling (4), Renewable energy (4), Redox flow battery (4), Recycle (3), Regenerative medicine (3), Rotating bed (3) etc. | 80 | |
|---|
| S-SO | slug flow (4), Simulation (4), Seawater Electrolysis (4), SOEC (3), Softsensor (3), Silica nanoparticles (2) etc. | 110 | |
|---|
| SP-SZ | Supercritical Fluid Deposition (5), Startup (5), Surfactant (4), Spray drying (3), Suspension (3), supercapacitor (2) etc. | 93 | |
|---|
| T | TBD (3), TWD (3), thermal management (2), Transfer learning (2), Toxicity change (1), thin film composite membrane (1) etc. | 63 | |
|---|
| U | ultrasound (3), University (1), ultrafiltration (1), Urea Oxidation Reaction (UOR) (1), Ultrafine bubbles (1), Ultrasonic velocity (1) etc. | 16 | |
|---|
| V | viscosity (5), vesicle (3), Viscoelastic Fluid (2), Vortex (1), Vinyl monomer (1), Viscoelasticity (1) etc. | 27 | |
|---|
| W | Water Electrolysis (9), Water treatment (7), Waste Utilization (2), Woody Biomass (2), Water (1), Waste plastics, (1) etc. | 43 | |
|---|
| X | X-Ray CT (1) | 1 | |
|---|
| Y | Yarrowia lipolytica (1), yielding behavior (1), Yield stress (1), Yttrium doping (1) | 4 | |
|---|
| Z | Zeolite (12), ZIF-8 (2), Zinc-Air Battery (1), Zinc-Lithium Hybrid Batteries (1), zwitterionic polymer (1), Zero-shot regression (1) etc. | 22 | |
|---|
| 非英数字 | * (11) | 11 | |
|---|
