Engineering & Materials Science
Protons
100%
Electrolytes
87%
Fuel cells
73%
Hydrogen
59%
Solid oxide fuel cells (SOFC)
55%
Oxides
52%
Graphene
50%
Proton exchange membrane fuel cells (PEMFC)
48%
Perovskite
48%
Catalysts
47%
Temperature
46%
Fuel burners
46%
Electrocatalysts
44%
Anodes
40%
Electrodes
38%
Doping (additives)
38%
Diffusion in gases
38%
Metal foams
36%
Hydrogen evolution reaction
34%
Hydrogen production
33%
Cathodes
31%
Thin films
31%
Ionic liquids
29%
Oxygen reduction reaction
29%
Current density
26%
Porous materials
26%
Catalyst supports
25%
X ray diffraction
25%
Powders
24%
Sintering
24%
Energy gap
23%
Thermal conductivity
22%
Electrolysis
21%
Methane
21%
Magnetron sputtering
21%
Nanoparticles
20%
Microstructure
20%
Ethylenediaminetetraacetic acid
19%
Zirconia
19%
Sol-gel process
19%
Gases
18%
Insulation
18%
Electric properties
18%
Sol-gels
18%
Oxidation
18%
Charge transfer
18%
Pulsed laser deposition
18%
Air
18%
Porous carbon
17%
Chemical stability
17%
Physics & Astronomy
fuel cells
77%
electrolytes
54%
catalysts
44%
hydrogen production
34%
protons
32%
solid oxide fuel cells
31%
membranes
28%
electrocatalysts
26%
hydrogen
25%
performance
24%
metal foams
23%
cells
22%
anodes
21%
conduction
19%
burners
18%
graphene
17%
gaseous diffusion
16%
imides
15%
radiant flux density
15%
distributors
15%
radio frequencies
15%
reactor design
14%
magnetron sputtering
13%
perovskites
13%
flames
12%
conductivity
12%
electrical properties
12%
durability
12%
electrolysis
12%
preparation
11%
vertical takeoff
11%
oxides
11%
cathodes
11%
pulsed laser deposition
11%
electrodes
10%
carbon
10%
zinc oxides
10%
reusable launch vehicles
10%
nanoparticles
10%
current density
10%
integral rocket ramjets
9%
foams
9%
oxide films
9%
liquids
9%
temperature
9%
sintering
9%
methane
8%
reactors
8%
oxygen
8%
energy bands
8%
Chemical Compounds
Burner
28%
Graphene
26%
Behavior as Electrode
23%
Porosity
23%
Catalyst
22%
Anode
21%
Liquid Film
20%
Thermal Conductivity
19%
Oxide
19%
Magnetron Sputtering
18%
Cathode
18%
Ceramic
16%
Ionic Liquid
16%
Gas
15%
Pulsed Laser Deposition
14%
Radiative Heat Transfer
13%
Reduction
13%
Diffusion
13%
Conductivity
12%
Glass Substrate
11%
Band Gap
11%
Imide
11%
Hydrogen
11%
Composite Material
11%
Current Density
10%
Dioxygen
10%
Zinc Oxide
10%
Sintering
9%
Electrolysis
9%
Electrodeposition
9%
Catalyst Property
9%
X-Ray Diffraction
9%
Fuel
9%
Oxidation Reaction
9%
Energy
8%
Charge Transfer
8%
Liquid
8%
Surface Area
8%
Carbonate
8%
Carbon Atom
8%
Lightweight Material
8%
Foam
8%
Application
8%
Transmittance
7%
Microstructure
7%
Heat Transfer
6%
Ethanol
6%
Ionic Conductivity
6%
Polyurethane Foam
6%
Nanoporosity
6%