King Fahd University of Petroleum and Minerals

Muhammad Ali Ehsan

Abbas Saeed Hakeem

Abdul Rehman

Tahar Laoui

Bilal Anjum Ahmed

Abbas Hakeem Saeed

Anvarhusein Abdulkadir Isab

Muhammad Altaf

Manzar Sohail

Khurram Saleem Joya

Hafiz Muzammil Irshad

Khalid Omer

Md Abdul Aziz

Abuzar Khan

Oki Muraza

Akolade Idris Bakare

Anwar Ul-Hamid

A Madhan Kumar

Sharafat Ali

Rami K Suleiman

A glass-ceramic material includes an oxynitride glass with a chemical formula CaAlSiOsNand zinc oxide. The zinc oxide is present in an amount of 8 to 16 percent by weight based on the total weight of the glass-ceramic material. The zinc oxide is doped in the oxynitride glass. The glass-ceramic material has one or more conductive channels having a length of 100 to 1000 μm and a width of 0.5 to 10 μm.

Development of oxynitride glass-ceramics preparations and uses thereof

An aerosol-assisted chemical vapor-deposition (AACVD) method of making nickel sulfide (NiS) nanowires. The method includes depositing a nickel carbamate compound onto a conductive support by an AACVD technique to form nickel sulfide (NiS) nanowires on the conductive support, where the nanowires are present directly on a surface of the conductive support. The NiS electrode prepared by the process of the present disclosure showed excellent OER activity in 1.0 M KOH solution, with a low Tafel value (60 mV dec) and good OER stability. The NiS nanowires, as prepared, can be used in energy conversion devices such as batteries, fuel cells, and supercapacitors.

Aerosol-assisted chemical vapor deposition of nickel sulfide nanowires for electrochemical water oxidation

A method of depositing a bimetallic alloy coating onto a bare stainless-steel bipolar plate includes preheating the bare stainless-steel bipolar plate to a temperature ranging from 450° C. to 500° C. Further, the method includes depositing copper (Cu) and nickel (Ni) onto the bare stainless-steel bipolar plate to form a coated stainless-steel bipolar plate. Furthermore, the method includes cooling the coated stainless-steel bipolar plate after terminating the depositing. The deposition is an aerosol assisted chemical vapor deposition of Cu and Ni from a solution containing a mixture of a copper (II) precursor and a nickel (II) precursor for 1 hour (h) to 3 h to form the coated stainless-steel bipolar plate having a coating including a CuNi film having a metal phase including Cu, Ni and CuNi.

Deposition of bimetallic alloy coating on stainless-steel bipolar plates

A rapid method of synthesizing nanoflowers made of nanoflakes of nickel molybdate (NiMoO) directly on nickel foam (NF) through an aerosol-assisted chemical vapor deposition (AACVD) process is disclosed. The nickel molybdate nanoflowers were grown on NF by varying the deposition time for 60 and 120 min at a fixed temperature of 480° C. and their efficiency was investigated as oxygen evolution reaction (OER) catalysts in 1 M KOH electrolyte. The NiMoOnanoflowers of NF obtained after 60 minutes of AACVD process showed OER performance with lowest overpotential of 320 mV to reach standard current density of 10 mA cm. The catalyst continuously performed the OER for 15 h, signifying its prominent stability under electrochemical conditions.

Electrocatalyst with a NiMoO4 layer with nanoflower morphology

A CoVOcomposite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 μm thick layer of CoVOhaving pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOcomposite electrode is capable of being used in an electrochemical cell for water oxidation.

Method for splitting water

Electrochemical cell with carbon electrode

Electrochemical cell for hydrogen and oxygen production

Electrochemical water splitting cell

Catalytic materials useful, e.g., in water oxidation performing at low overpotential and/or stable for applications such as solar-to-fuel conversion systems may include nanoscale, nanoporous Pd-containing materials. Thin-film Pd electrocatalysts may be obtained via Aerosol-Assisted Chemical Vapor Deposition (AACVD) on conducting surfaces. XRD and XPS analyses show a phase pure crystalline metallic Pd deposit. Surface morphology study reveals a nanoparticulate highly porous nanostructure. Under electrochemical conditions, such Pd electrocatalysts may conduct water oxidation at onset potentials starting around 1.43 V against a reversible hydrogen electrode (η of 200 mV, Tafel slope of 40 mV/dec), and/or may achieve around 100 mA/cmcurrent density at 1.63 V against a reversible hydrogen electrode, and may exhibits long-term stability in oxygen evolution. Method of making such electrocatalysts and their uses are also provided.

Method for making a PD-coated electrode

An aerosol-assisted chemical vapor-deposition (AACVD) method of making NiPd nano-alloy electrocatalyst. The method includes subjecting a mixture including Pd(II)acetylacetonate Pd(CHO), Ni(II)acetylacetonate Ni(CHO)and a solvent to AACVD, to form a NiPd nano-alloy electrocatalyst. The NiPd nano-alloy electrocatalyst is formed on a surface of a porous metallic substrate in a single-step. The electrocatalyst of the present disclosure exhibits excellent OER activity, demonstrates excellent durability during prolonged water electrolysis experiments and imposing kinetics for OER.

NiPd nano-alloy film as a electrocatalyst and methods of preparation thereof

A rapid method of synthesizing nanoflowers made of nanoflakes of nickel molybdate (NiMoO) directly on nickel foam (NF) through an aerosol-assisted chemical vapor deposition (AACVD) process is disclosed. The nickel molybdate nanoflowers were grown on NF by varying the deposition time for 60 and 120 min at a fixed temperature of 480&#xb0; C. and their efficiency was investigated as oxygen evolution reaction (OER) catalysts in 1 M KOH electrolyte. The NiMoOnanoflowers of NF obtained after 60 minutes of AACVD process showed OER performance with lowest overpotential of 320 mV to reach standard current density of 10 mA cm. The catalyst continuously performed the OER for 15 h, signifying its prominent stability under electrochemical conditions.

NiMoO4 nanoflowers on nickel foam as electrocatalysts for water oxidation

A CaTiO&#x2014;TiOcomposite electrode and method of making is described. The composite electrode comprises a substrate with an average 2-12 &#x3bc;m thick layer of CaTiO&#x2014;TiOcomposite particles having average diameters of 0.2-2.2 &#x3bc;m. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a calcium complex, and a titanium complex. The CaTiO&#x2014;TiOcomposite electrode is capable of being used in a photoelectrochemical cell for water splitting.

Method for making a CaTiO composite thin film electrode for water splitting

A CoVOcomposite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 &#x3bc;m thick layer of CoVOhaving pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOcomposite electrode is capable of being used in an electrochemical cell for water oxidation.

Method for decomposing water into H2 and O2

Platinum films can be obtained by aerosol assisted chemical vapor deposition (AACVD) using one or more Pt-dialkyldithiocarbamate complexes of formula Pt(SCNR), wherein R is independently alkyl, aryl, or alkaryl, particularly as single source precursors. Such methods may include heating a substrate to a deposition temperature above 150&#xb0; C. in a reactor; and introducing into the reactor, at the deposition temperature, an aerosol including a platinum dithiocarbamate compound, salt, and/or solvate thereof, to thereby deposit the platinum layer on the substrate. The Pt(SCNR)-derived films have well-connected and defect-free surface topography and better catalytic performance, likely due to their high conductivity and reflectivity.

Growing community of inventors

Dhahran, Saudi Arabia

Muhammad Ali Ehsan