摘要:
A chemical composition includes graphene oxide covalently bonded to an ionic liquid. A nanocomposite anion exchange membrane (26) includes graphene oxide; and an ionic liquid covalently bonded to the graphene oxide. A fuel cell (20) includes an anode (22); a cathode (24); and a nanocomposite anion exchange membrane (26) including graphene oxide; an ionic liquid covalently bonded to the graphene oxide; and a base membrane. A method of fabricating a nanocomposite anion exchange membrane (26) includes functionalizing graphene oxide with an ionic liquid to create a nanocomposite; and forming an anion exchange membrane (26) with the nanocomposite.
摘要:
A gold/titanium nanotube-multiwalled carbon nanotube composite (Au/TNT-MWCNT) is presented. The gold composition comprises at least 3 % weight of the nanotube composite based on the total weight of the nanotube composite and the gold composition is located in at least one of the wall of the titanium nanotube and the wall of the multiwalled carbon nanotube. Photocatalytic oxidation of neat cyclohexane (CHA) with H 2 O 2 as an oxidant was carried out. Au/TNT-MWCNT catalysts promoted partial CHA oxidation with high conversion (6-7.5%) and selectivity (60-75%) to cyclohexanone.
摘要翻译:介绍了金/钛纳米管多壁碳纳米管复合材料(Au / TNT-MWCNT)。 金组合物包含基于纳米管复合材料的总重量的至少3重量%的纳米管复合材料,并且金组合物位于钛纳米管的壁和多壁碳纳米管的壁中的至少一个中。 进行了以H2O2为氧化剂的纯环己烷(CHA)的光催化氧化。 Au / TNT-MWCNT催化剂以高转化率(6-7.5%)和选择性(60-75%)促进部分CHA氧化成环己酮。
摘要:
The invention are directed to a CoMoS2 OR a CoWS2 catalyst prepared by refluxing reactants to form a precursor material that is subsequently decomposed to form a catalyst. Specifically, a CoMoS2 catalyst prepared from cobalt nitrate hexahydrate and ammonium molybdate to form a CoMoS2 catalyst precursor that is subsequently decomposed to form CoMoS2 catalyst.
摘要翻译:本发明涉及通过使反应物回流以形成随后分解形成催化剂的前体材料制备的CoMoS 2 OR CoWS 2催化剂。 具体来说,由硝酸钴六水合物和钼酸铵制备的CoMoS2催化剂,形成CoMoS2催化剂前体,随后分解形成CoMoS2催化剂。
摘要:
L'invention concerne un procédé de synthèse d'un composé nanocomposite comportant des nanoparticules de TiO 2 fixées sur des nanostructures de carbone, caractérisé en ce qu'il comprend les étapes suivantes : a) Mélanger dans un premier liquide, pour former une suspension mère, des nanostructures de carbone et au moins un précurseur de TiO 2 , b) Nébuliser ladite suspension mère et la transporter par un flux gazeux dans une chambre de réaction, c) Réaliser une pyrolyse laser de ladite suspension mère dans ladite chambre de réaction pour simultanément former des nanoparticules de TiO 2 et les greffer aux nanostructures.
摘要:
Disclosed herein are nanocomposite compositions comprising nano metal cluster containing titania and anion doped titania prepared by a simple one step for enhanced life time of charge carriers.
摘要:
Methods of forming and producing nanocatalysts mounted on or within nanofiber or nanotube structures are disclosed. The mounting structures prevent the nanocatalysts from agglomerating and retain the nanocatalysts in a reactor. The nanocatalysts may be grown over a bulk catalyst material without treating the nanotubes after forming the nanotubes. The resulting nanocatalysts remain catalytically active immediately after formation of the mounting supports and are effective in a wide variety of reactions. Systems are disclosed for reacting reaction gases to form mounting structures with at least one embedded nanocatalyst in the growth tips. The mounting structures may catalyze a different, subsequent reaction than the nanofiber formation reaction, which may take place in the same or a different reactor. Methods of forming a mass of nanocatalysts and catalyzing a reaction with the mass of nanocatalysts are disclosed. Systems are disclosed for forming a mass of nanocatalysts and catalyzing another reaction with the mass of nanocatalysts.
摘要:
A method and composition for making photocatalytic capped colloidal nanocrystals include semiconductor nanocrystals and inorganic capping agents as photocatalysts. The photocatalytic capped colloidal nanocrystals may be deposited on a substrate and treated to form a photoactive material that may be used in a plurality of photocatalytic energy conversion applications such as water splitting. By combining different semiconductor materials for photocatalytic capped colloidal nanocrystals employed and by changing the semiconductor nanocrystals shapes and sizes, band gaps can be tuned to expand the range of wavelengths of sunlight usable by the photoactive material. The disclosed photocatalytic capped colloidal nanocrystals within the photoactive material may also exhibit a higher efficiency of solar energy conversion process derived from a higher surface area of the semiconductor nanocrystals within photocatalytic capped colloidal nanocrystals available for the absorption of sunlight and enhancement of charge carrier dynamics.
摘要:
担体に金属触媒を担持させる際に、金属触媒の粒子径のばらつきが発生することを抑制できる技術を提供する。処理室101内に担体であるカーボンナノチューブ11(CNT11)が配列されたCNT基板10を配置する。処理室101に二酸化炭素を供給する。処理室101の二酸化炭素を超臨界状態にした上で、処理室101に白金の錯体が溶解された錯体溶液を供給する。CNT11の温度であるサンプル温度T S を、処理室101内の雰囲気温度T F より高くする。雰囲気温度T F とサンプル温度T S との間の温度差ΔTが減少と増大とを繰り返すように、CNT基板10を加熱する。超臨界流体の超臨界状態を解除した後に、CNT基板10を加熱して、CNTの表面に金属触媒を析出させる。
摘要:
Disclosed are hierarchically porous carbon materials with a plurality of discreet nanoparticles dispersed on their carbon phase. The materials possess a continuous network of pores that spans the porous material, permitting the flow of fluids into and through the material. The porous materials can be used as heterogeneous catalysts.