asteroza + hydrogen   199

Joi Scientific: Clean, affordable hydrogen energy
Some sort of non-electrolysis based hydrogen production from seawater. New Brunswick Power in Canada is apparently partnering with them to produce hydrogen for energy storage (grid storage? peak shaving? renewable energy sink?)
hydrogen  gas  production  research  technology 
11 days ago by asteroza
Mitsubishi Estate Invests in 'New Hydrogen Energy' Startup - News - Solar Power Plant Business
Wait a sec, nuclear transformation via transmutation to produce hydrogen? Like the hydrino thing? As in LENR?
japan  LENR  nuclear  hydrogen  production 
19 days ago by asteroza
Efficient CO2 Utilization via a Hybrid Na-CO2 System Based on CO2 Dissolution - ScienceDirect
Converts CO2 to hydrogen and baking soda via electrolytic cell and aqueous solution. Dependent on the aqueous solution though, where does that come from, how hard is it to regenerate, etc. Makes power too
CCS  CO2  carbon  capture  baking  soda  hydrogen  gas  production  power  generator  electrolytic  cell  sodium  ionic  conductor  NASICON  separator  membrane  chemistry 
5 weeks ago by asteroza
Coming Soon
Uses a closed loop ICE of sorts, using input hydrogen/methane and oxygen along with working fluid argon. Burn in a piston, condense out the water, membrane filter the CO2, and recycle the argon back to the cylinder.
argon  power  cycle  alternative  working  fluid  closed  loop  recycling  ICE  engine  generator  hydrogen  methane  oxygen  oxyfuel 
october 2018 by asteroza
CSIRO tech accelerates hydrogen vehicle future - CSIRO
New membrane for extracting hydrogen from ammonia, which allows a hydrogen logistics train where hydrogen is made/stored as ammonia, bulk transport is done as liquid ammonia, and converted back to hydrogen at a local fill station for local storage in a high pressure tank, for eventual use in fuel cell vehicles.
CSIRO  ammonia  hydrogen  gas  production  membrane  materials  science  research  technology  transportation  fuel  logistics  fuelcell 
august 2018 by asteroza
RotoLyzer | RotoBoost
Some kind of mechanism to rotate the electrodes in an electrolyzer to increase reaction rates? Or increase density gradient against the electrode to make gas separation easier/faster?
RotoLyzer  rotating  alkaline  water  electrolyzer  electrolysis  hydrogen  gas  production 
march 2018 by asteroza
Technical feasibility of a proton battery with an activated carbon electrode
Appears to use an activated carbon electrode as a hydrogen store, paired with a reversible fuel cell, to make a complete proton battery
solid  state  hydrogen  storage  porous  activated  carbon  phenolic  resin  electrode  reversible  fuelcell  proton  battery  energy  materials  science  research  technology 
march 2018 by asteroza
EU/german work on shifting excess renewable energy to hydrogen cracking and synthetic methane production to supplement current nautral gas networks (and use them effectively as a national storage buffer)
power-to-gas  synfuel  methane  synthesis  production  energy  storage  hydrogen  electrolysis 
march 2018 by asteroza
Floating membraneless PV-electrolyzer based on buoyancy-driven product separation
Using asymmetrically catalyst coated mesh mebranes at small separation distances, vertically hanging mesh electrodes can perform electrolysis without a membrane and get good product separation, using natural gas buoyancy. Though this skews to tall rigs.
membraneless  asymetric  coated  electrode  mesh  water  electrolysis  electrolyzer  hydrogen  gas  production  materials  science  research  technology 
december 2017 by asteroza
GERA Technical Papers |
Nuclear piston engine, using gaseous "fuel" and hydrogen gas moderator, with neutron reflector piston and cylinder. Uses piston top-dead-center compression effects and a "spark" (external neutron source, like an ADSR particle accelerator neutron spallation target, or some sort of cylinder wall embedded neutron source). Wonder if LiquidPiston reverse wankel would also work well here. Negative void coefficient is nice too.
nuclear  nanofuel  internal  engine  piston  reciprocating  plutonium  hexaflouride  hydrogen  gas  otto  cycle  wankel  rotary  power  generator  external  neutron  source  spark  ignition  ADSR  gaseous  pulse  pulsed  core 
june 2017 by asteroza
Harvesting Hydrogen Gas from Air Pollutants with an Unbiased Gas Phase Photoelec...
Uses light, air, and organic pollutants to create hydrogen gas and clean the air apparently. Works better without oxygen, but does work with ambient air and light only.
photoelectrochemical  cell  titanium  oxide  photoanode  hydrogen  gas  production  light  solar  green  energy  air  pollution  synfuel  Delicious 
may 2017 by asteroza
Low cost plasma membrane reactor to efficiently convert ammonia to hydrogen
Using a plasma field between an iron tube and palladium foil tube, ammonia can be broken down to nitrogen and hydrogen, with the hydrogen pulled through the palladium foil efficiently, resulting in very high hydrogen gas purity separation. Process is low temperature and pressure as well, though the palladium foil probably isn't cheap. Effectively an ammonia fuel reformer for a hydrogen fuel cell, allowing storage of low pressure ammonia as fuel.
hydrogen  gas  production  ammonia  converter  plasma  palladium  membrane  reactor  materials  science  research  technology  separator  separation  reformer  fuelcell  low  temperature  pressure  Delicious 
april 2017 by asteroza
Comprehensive Analysis of Sorption Enhanced Steam Methane Reforming in a Variabl...
Basically used a 4 stroke engine, separation membranes, and a sorbent bed to crack/reform methane into hydrogen and CO2
steam  methane  reformer  hydrogen  production  research  technology  Delicious 
february 2017 by asteroza
.: Energy Observer :.
Traction kite propulsion included, wonder if it's SkySails...
france  solar  hydrogen  ship  boat  yacht  vehicle  transportation  electric  traction  kite  sail  marine  engineering  propulsion  Delicious 
february 2017 by asteroza
KIT - KIT - Media - Press Releases - PI 2015 - Crack it! Energy from a Fossil Fuel without carbon di-oxide
Hrm, I suppose if you had a handy methane source and a heat source (1200 C?!?), this is interesting (GenIV nuclear reactor maybe), but probably the more interesting aspect is the pure carbon powder byproduct, suitable for making carbon fiber and similar. I suppose if you wanted to make graphene, using natural gas from town as both an energy source and a carbon source for production might be a good match...
hydrogen  gas  production  research  technology  liquid  metal  tin  column  methane  cracking  carbon  powder  Delicious 
december 2015 by asteroza
Low Cost Titanium Powder Production
Using a fluidized bed with arc jets to use atomic hydrogen to process titanium tetrachloride into titanium powder directly, cheaper than the Kroll process.
MAFBR  fluidized  bed  arc  reactor  titanium  tetrachloride  metal  chloride  powder  production  processing  materials  science  research  technology  atomic  hydrogen  reaction  Delicious 
february 2015 by asteroza
Catalytically active Au-O(OH)x- species stabilized by alkali ions on zeolites and mesoporous oxides
single atom gold particles supported by alkali ions seem to work pretty well as a active catalyst site for a water-gas shift reaction, making hydrogen production cheaper/easier
gold  water  gas  shift  reaction  catalyst  hydrogen  production  materials  science  chemistry  research  technology  Delicious 
january 2015 by asteroza
Toyota Opens the Door and Invites the Industry to the Hydrogen Future | Corporate
Toyota is effectively making their fuel cell and related hydrogen gas patents effectively royalty free. Sorta like Tesla and their EV patents, but Toyota is capping it until 2020, which seems like a cheap shot..
toyota  fuelcell  hydrogen  patent  Delicious 
january 2015 by asteroza
Proton transport through one-atom-thick crystals : Nature : Nature Publishing Group
Interesting filtering trick, to sieve out cracked hydrogen ions. May be useful for fuelcell fuel production and avoiding fuel poisoning.
graphene  hydrogen  ion  sieve  filter  proton  transport  boron  nitride  materials  science  research  technology  nanotechnology  gas  production  Delicious 
january 2015 by asteroza
Apparently they have a good high temperature steam electrolysis SOEC that can produce hydrogen at decent efficiencies, for feeding into a RWGS conversion reactor syngas production rig, to eventually produce synthetic methane (combining syngas from the reactor with additional H2 from the SOEC), or eventually via FT, synthetic liquid fuels. They don't seem to be doing a coelectrolysis SOEC to crack steam and CO2 simultaneously in the same cell stack though.
SOEC  solid  oxide  electrolysis  cell  high  temperature  water  H2O  steam  CO2  syngas  production  synfuel  synthetic  fuel  methane  CH4  liquid  GTL  hydrogen  Delicious 
november 2014 by asteroza
Innovation Energy's portable PEM fuel cell using a metal hydride based hydrogen storage container rather than methanol and a reformer. Wonder why Apple is dealing with these guys...
portable  small  form  factor  personal  charger  recharger  hardware  electronics  devices  USB  PEM  fuelcell  power  generator  metal  hydride  hydrogen  storage  Delicious 
july 2014 by asteroza
Hydrogen Production from Ammonia Using Sodium Amide - Journal of the American Chemical Society (ACS Publications)
New no catalyst, twin parallel chemical reaction method that looks be cheap and efficient at cracking ammonia for hydrogen.
ammonia  decomposition  cracking  hydrogen  production  sodium  amide  NaNH2  chemistry  research  alternative  Delicious 
june 2014 by asteroza
Amorphous TiO2 coatings stabilize Si, GaAs, and GaP photoanodes for efficient water oxidation
Using electron leaky titanium dioxides as a semiconductor coating that can pass electrons, a possible oxidizing side water photocracker to produce solar fuels.
materials  science  research  technology  artificial  photosynthesis  water  cracking  electrolysis  oxidation  Ti2  leaky  electron  photoanode  nickel  oxide  photocatalyst  solar  fuel  syngas  hydrogen  production  amorphous  Delicious 
june 2014 by asteroza
New high energetic composite propellants for space applications : Refridgerated Solid Propellant (RSP)
The next step from a hybrid rocket featuring HTP and alane, is mixing and freezing the damn thing to make a single monolithic solid rocket.
cryogenic  refridgerated  solid  proellant  space  propulsion  rocket  research  technology  materials  science  H2O2  hydrogen  peroxide  HTP  polymer  aluminum  alane  metal  hydride  Hydroxalane  polyethylene  polybutadiene  water  H20  Delicious 
may 2014 by asteroza
Sandia National Laboratories: News Releases : Portable hydrogen fuel cell unit to provide green, sustainable power to Honolulu port
Interesting that they want to provide offship power to ships in port via barge to begin with. Hydrogen use seems like a minus though. Why not a LNG tank with a methane reformer?
auxiliary  power  generator  fuelcell  barge  port  hawaii  hydrogen  marine  research  technology  Delicious 
february 2014 by asteroza
Towards a ‘proton flow battery’: Investigation of a reversible PEM fuel cell with integrated metal-hydride hydrogen storage
Now that's smart, integrating a metal hydride hydrogen sponge as an electrode in a PEM fuel cell to skip a step. Though it turns the setup essentially into a closed cycle battery, fixed to the capacity of the metal hydride electrode's internal storage capacity, hence the "battery" nomenclature.
metal  hydride  electrode  PEM  fuelcell  integrated  hydrogen  storage  materials  science  research  technology  proton  flow  battery  energy  Delicious 
february 2014 by asteroza
HYDROS Propulsion System
New cubesat thruster, uses on-orbit on-demand electrolysis of water to provide oxygen/hydrogen for the thruster, so you have an inert propellant.
water  electrolysis  hydrogen  oxygen  rocket  thruster  cubesat  space  propulsion  hardware  electronics  devices  Delicious 
january 2014 by asteroza
ATK PowerPoint Template - White Internal Use - 315856main_ATK_Uzhinsky.pdf
Interesting energy storage system cycle, using a SOFC fuelcell microturbine, hydrogen peroxide, magnesium hydride, and external solar power
space  power  generator  energy  storage  research  technology  SOFC  fuelcell  hydrogen  peroxidie  H2O2  MgH2  magnesium  hydride  steam  oxygen  microturbine  Delicious 
january 2014 by asteroza
Efficient Generation of H2 by Splitting Water with an Isothermal Redox Cycle
Interesting work showing no temperature swing, only the presence of steam, is the determinant in a redox reaction supporting water/steam cracking for hydrogen production at 1350C which is both lower than expected and avoids thermal cycling the metal oxide catalyst.
water  reaction  cycle  hercynite  isothermal  oxidation  solar  splitting  production  gas  redox  oxide  metal  hydrogen  cracking  reduction  steam  Delicious 
august 2013 by asteroza
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