asteroza + catalyst   94

Enzymatic construction of highly strained carbocycles | Science
Bicyclobutnae is a pain and expensive to make, so hasn't been seriously researched for rocket propellant research, but using e.coli to make it via enzyme catalyst now makes it a biofuel (biorocketfuel?). 8C boiling point versus cryogenic methane makes for an interesting trade study.
bicyclobutane  biology  organic  chemistry  materials  science  research  technology  rocket  fuel  propellant  biofuel  e.coli  bacteria  enzyme  production  catalyst 
july 2018 by asteroza
Caffeine-catalyzed gels
Using caffeine as a catalyst for producing soft polymer gels embedded with medicine
soft  polymer  gel  manufacturing  caffeine  catalyst  medicine  health  drug  delivery 
april 2018 by asteroza
MatterShift
Programmable CNT based separation filters, possible basis for molecular manufacturing. At least it seems to deal with gas/liquids easily enough in theory for basic molecular synthesis of simple compounds. So could go from stripping CO2 and water from the atmosphere to make simple synthetic fuels like ethanol
CNT  tube  separation  filter  membrane  materials  science  research  technology  pillar  array  catalyst  NEMS 
march 2018 by asteroza
Carbon-based Catalyst Developed for Fuel-cell Forklifts - News - Solar Power Plant Business
Ballard Power Systems seems to be the source of these carbon nanoshell catalyst electrodes, but one of the original researchers is Junichi Ozaki, of Gunma University, who was pursuing nano-shell multilayer carbon hollow shell spheres.
carbon  nanoshell  catalyst  electrode  PEM  fuelcell  materials  science  research  technology 
october 2017 by asteroza
An algal photoenzyme converts fatty acids to hydrocarbons | Science
GM bacteria using algae derived genes can convert fat to hydrocarbons using mostly (only?) blue light, by slicing off the carbon on a lipid chain with an enzyme
GM  genetic  engineering  modified  bacteria  algae  enzyme  fat  lipid  hydrocarbon  conversion  synfuel  production  biology  materials  science  resarch  technology  upconversion  catalyst  photoenzyme  biofuel 
september 2017 by asteroza
Water splitting–biosynthetic system with CO2 reduction efficiencies exceeding photosynthesis | Science
engineered bacteria eat CO2 and H2, output alcohols, so paired with a water cracking catalyst dumping H2 driven by solar panels, can beat natural photosynthesis efficiency
hybrid  biohybrid  symbiotic  artificial  photosynthesis  solar  SolarFuel  biomass  alcohol  biology  materials  science  biosynthetic  electrolysis  catalyst  CO2  carbon  capture  Nocera  Delicious 
june 2016 by asteroza
Solar photothermochemical alkane reverse combustion
So high light/pressure/temperature reactor with TiO2 catalyst does a one step conversion of water and CO2 to liquid hydrocarbons.
liquid  hydrocarbon  synfuel  production  photothermochemical  tandem  photochemical  thermochemical  photocatalytic  photocatalyst  alkane  reverse  combustion  UV  light  heat  pressure  titanium  dioxoide  catalyst  water  CO2  cracking  materials  science  research  technology  solar  synthetic  fuel  Delicious 
february 2016 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
Puralytics :: Product Overview
Currently trialing an artificial lilypad of sorts, that uses a photoreactive catalyst in the fabric mesh to use sunlight to help breakdown chemicals in water.
materials  science  research  technology  photoreactive  catalyst  water  remediation  detoxification  chemical  breakdown  photocatalytic  oxidation  reduction  Delicious 
october 2014 by asteroza
Heteroatom-doped highly porous carbon from human urine : Scientific Reports : Nature Publishing Group
So, um ,wizzing on a slice of coal and slow baking it might make a better fuel cell catalyst than platinum? I wonder if they controlled for diet, since typical korean fare may result in a very different volatile ratio from western food, plus what types of booze. Reminds me of that red wine superconductor research.
fuelcell  catalyst  materials  science  research  technology  urine  surface  coating  pretretment  porous  carbon  electrode  electrocatalyst  Delicious 
june 2014 by asteroza
Nickel nanoparticles catalyse reversible hydration of carbon dioxide for mineralization carbon capture and storage - Catalysis Science & Technology (RSC Publishing)
Interesting research related to carbon capture. Scientists set out to better understand carbonic acid creation, and needed a catalyst for speeding up experiments. Chance discovery of high surface area nickel on Sea Urchin exoskeletons led to the discovery that nickel nanoparticles catalyze the formation of calcium carbonate from dissolved CO2 and calcium in water, mimicking a carbonic anhydrase enzyme but without the pH limitations . It appears the process leads to direct calcium carbonate, without much carbonic acid byproducts. It may be possible to do this via a seawater column bubbling flue gas with suspended nickel nanoparticles, since the nickel particles can be separated magnetically (though wouldn't that require grinding the recovered carbonate?)
calcium  water  technology  CO2  research  science  carbonate  materials  nanoparticle  carbon  capture  nickel  column  mineralization  CCS  catalyst  nanotechnology  Delicious 
february 2013 by asteroza
Homologation and functionalization of carbon monoxide by a recyclable uranium complex
Apparently depleted uranium can be used to create a closed loop catalyst for upgrading CO into feedstock for various petrochemical/hydrocarbon processes.
depleted  uranium  CO  carbon  monoxide  homologation  catalyst  petrochemical  hydrocarbon  synthesis  feedstock  materials  science  research  technology  metal  complex  Delicious 
june 2012 by asteroza
A Perovskite Oxide Optimized for Oxygen Evolution Catalysis from Molecular Orbital Principles
So getting oxygen out of water by electrolysis has traditionally been the limiting factor in performance. This new catalyst is apparently an order of magnitude better than the previous catalyst, but suffers from the same limitation, namely requiring an alkaline solution media to perform at its best. So perhaps not quite ready for primetime. However, apparently there are some integration possibilities with Dr. Nocera's artificial leaf project, which uses similar behavior catalysts.
perovskite  oxide  oxygen  evolution  catalyst  water  electrolysis  materials  science  research  technology  Delicious 
october 2011 by asteroza
New green technology for hydrogen production
Claims lower temperature hydrogen gas production via sorption bed enhanced methane reformer, which sucks in CO2 while reforming so the output gas stream is high purity hydrogen. I wonder how you get the CO2 back out of the sorbent to recycle it though...
sorption  bed  enhanced  catalytic  methane  reformer  hydrogen  gas  production  carbon  capture  CO2  rhodium  catalyst  hydrotalcite  sorbent  low  temperature  pressure  Delicious 
june 2011 by asteroza
Institute Develops Highly-effective, Long-lasting Exhaust Gas Catalyst -- Tech-On!
Basically, encapsulating exhaust gas oxidation catalysts inside gas permeable shells that physically interfere with metal catalyst particle aggregation due to high temperatures.
japan  materials  science  research  technology  exhaust  gas  catalyst  thermal  aggregation  resistance  metallic  cell  spherical  shell  high  temperature  encapsulated  processing  treatment  green  Delicious 
october 2010 by asteroza
Novomer
Tying up with Kodak to access their chemical reactor tech. Current process uses only 50% of the petroleum necessary to produce PPC precursor plastics. Aim is 100% production using only CO2.
Novomer  Kodak  CO2  carbon  conversion  precursor  plastic  PPC  materials  science  research  technology  process  catalyst  cleantech  recycling  green  sustainability  energy  Delicious 
december 2009 by asteroza
Ground-breaking research finds way to convert CO2 into clean-burning biofuel
Interesting methanol sourcing from activated CO2, but how much of a pain is it to make the NHC's and hydrosilane?
activated  CO2  methanol  conversion  organic  catalyst  organocatlyst  NHC  N-heterocyclic  carbene  hydrosilane  materials  science  research  technology  chemical  process  green  energy  Delicious 
april 2009 by asteroza
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