A literature review of the recovery of molybdenum and vanadium from spent hydrodesulphurisation catalysts: Part I: Metallurgical processes

As nickel-rich layered oxide cathodes start to attract worldwide interest for the next-generation lithium-ion batteries, their long-term cyclability in full cells remains a challenge for electric vehicles. Here we report a long-life Ni-rich layered oxide cathode (LiNi0.7Co0.15Mn0.15O2) with a uniform surface coating of the cathode particles with Li2ZrO3. A pouch-type full cell fabricated with the Li2ZrO3-coated cathode and a graphite anode displays 73.3% capacity retention after 1500 cycles at a C/3 rate. The Li2ZrO3 coating has been optimized by a systematic study with different synthesis approaches, annealing temperatures, and coating amounts. The complex relationship among the coating conditions, uniformity, and morphology of the coating layer and their impacts on the electrochemical properties are discussed in detail.

Long-Life Nickel-Rich Layered Oxide Cathodes with a Uniform Li2ZrO3 Surface Coating for Lithium-Ion Batteries.

A literature review of the recovery of molybdenum and vanadium from spent hydrodesulphurisation catalysts Part II: Separation and purification

Transesterification of sunflower oil to biodiesel on zro2 supported la2o3 catalyst

Zirconium hydroxide was evaluated for the ability to detoxify chemical warfare agents GD, HD, and VX. Observed half-lives were 8.7 min, 2.3 h, and 1 min, respectively. Owing to its extremely fast reaction rate, the mechanism for VX was further characterized. Zirconium hydroxide samples were calcined at temperatures ranging from 150 to 900 °C to investigate the effect of surface speciation on VX hydrolysis rates. NMR, TGA/DSC, TEM, and potentiometric tritration reveal the importance of the acidic, bridging OH groups of Zr(OH)4 which are proposed to protonate and catalytically hydrolyze VX in a manner similar to autocatalysis by EMPA in solution.

Reactions of VX, GD, and HD with Zr(OH)4: Near Instantaneous Decontamination of VX

The extraction of zirconium(IV) from hydrochloric acid solutions by tricaprylmethylammonium chloride

Liquid-liquid extraction of molybdenum(VI) from aqueous acid solutions by TBP and TOPO

The extraction of molybdenum(VI) from hydrochloric, nitric and sulphuric acid solutions by trioctyl-amine and tricaprylmethylannnonium chloride in benzene has been investigated under various conditions. The equiliblium expressions are proposed on the basis of the distribution data.

Hiroshi Watanabe

Papers

The extraction of zirconium(IV) from hydrochloric acid solutions by tricaprylmethylammonium chloride

Liquid-liquid extraction of molybdenum(VI) from aqueous acid solutions by TBP and TOPO

Liquid-liquid extraction of molybdenum(vi) from aqueous acid solutions by high-molecular weight amines

The extraction of zirconium(IV) from hydrochloric acid solutions by high-molecular-weight amines

The extraction of zirconium(IV) from sulphuric acid solutions by long-chain aliphatic amines