Effect of Precipitating Agents on the Structural, Morphological, and Colorimetric Characteristics of Nickel Hydroxide Particles
Source abstract
Abstract
Abstract Nickel hydroxides are known for their characteristic green color, which when electrochemically modulated, may range from yellow to brown due to the electrochromic nature of these compounds. However, it was surprisingly found that the combination of nickel salts (acetate (Ac), chloride (Cl), and nitrate (Nit)) with hydroxides (sodium, potassium, and ammonium) generated solids of different colors and tones varying from green to yellow. The samples were characterized and identified as predominantly comprising the β-Ni(OH)2 polymorph when combined with chloride and nitrate salts (degree of crystallinity between 68.2 and 76.2%), whereas nickel acetate generated a mixed phase of the α/β polymorphs (degree of crystallinity between 32.9 and 62.9%). Higher surface areas were obtained for the salts with NaOH: AcNa - 416.5 m2 g− 1; ClNa - 114.30 m2 g− 1; and NitNa - 103.7 m2 g− 1, respectively. The α/β-Ni(OH)2 materials presented low luminosity based on the CIELab method, unlike the other salts, whereas β-Ni(OH)2 presented high luminosity.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Transition Metal Oxide Nanomaterials · Pigment Synthesis and Properties · Conducting polymers and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. Nickel, palladium und patin
2. Highly dispersed ultrasmall Ni(OH)2 aggregated particles on a conductive support as a supercapacitor electrode with superior performance10.1016/j.jcis.2016.11.072 ↗
3. NiO nanoparticles on graphene nanosheets at different calcination temperatures as effective electrocatalysts for urea electro-oxidation in alkaline medium10.1016/j.jcis.2017.08.048 ↗
4. Nickel-cobalt hydroxide nanosheet: synthesis, morphology and electrochemical properties10.1016/j.jcis.2017.03.096 ↗
5. Hierarchical flower-like nickel (II) oxide microspheres with high adsorption capacity of Congo red in water10.1016/j.jcis.2017.06.014 ↗
6. Eletrodos modificados por hidróxido de níquel: um estudo de revisão sobre suas propriedades estruturais e eletroquímicas visando suas aplicações em eletrocatálise, eletrocromismo e baterias secundárias10.1590/S0100-40422010001000030 ↗
7. Promoting hydrogen-rich syngas production from catalytic reforming of biomass pyrolysis oil on nanosized nickel-ceramic catalysts10.1016/j.applthermaleng.2017.07.028 ↗
8. Chiral macrocyclic imine nickel (II) coordination complexes with diverse photophysical properties10.1016/j.dyepig.2017.01.006 ↗
9. Nano nickel ferrite (NiFe2O4) as anti-corrosion pigments for API 5L X-80 steel: Na electrochemical study in acidic an saline media10.1016/j.dyepig.2015.02.023 ↗
10. Facile synthesis of NiTiO3 yellow nano-pigments with enhanced solar radiation reflection efficiency by an innovative one-step method at low temperature10.1016/j.dyepig.2016.12.044 ↗
11. Synthesis and coloration of highly dispersed NiTiO3@TiO2 yellow pigments with core-shell structure10.1016/j.jeurceramsoc.2017.03.020 ↗
12. Low-temperature ultrasound synthesis of nanocrystals CoTiO3 without a calcination step. Effect of ultrasonic waves on formation of the crystal growth mechanism10.1016/j.apt.2016.11.004 ↗
13. Obtaining novel crystalline/amorphous core/shell structure in the barium titanate nanocrystals by an innovative one-step approach10.1039/C5RA05406K ↗
14. Solid state synthesis and structural characterization of zinc titanates10.1016/j.jallcom.2016.03.244 ↗
15. Preparation and photocatalytic properties of ilmenite NiTiO3 powders for degradation of humic acid in water10.1007/s12613-012-0566-6 ↗
16. NiTiO3 powders obtained by polymeric precursor method: synthesis and characterization10.1016/j.jallcom.2007.12.085 ↗
17. Mesoporous and nanocrystalline sol-gel derived NiTiO3 at the low temperature: controlling the structure, size and surface area by Ni:Ti molar ratio10.1016/j.solidstatesciences.2010.07.015 ↗
18. Nanocrystals of XTiO3 (X=Ba, Sr, Ni, BaxTi1−x) materials obtained through a rapid one-steps methodology at 50°C10.1016/j.ultsonch.2015.02.006 ↗
19. Processing and characterization of carbonate-free BaTiO3 nanoscale particles obtained by a rapid ultrasound-assisted wet chemical approach10.1007/s11663-015-0377-z ↗
20. Corrosion behavior of TiO2-NiO nanocomposite thin films on AISI 316L stainless steel prepared by sol-gel method10.1016/j.tsf.2012.07.125 ↗
21. Exsolution of nickel nanoparticles at the surface of a conducting titanate as potential hydrogen electrode material for solid oxide electrochemical cells10.1016/j.jpowsour.2012.09.062 ↗
22. Synthesis of nickel hydroxide: effect of precipitation conditions on phase selectivity and structural disorder10.1016/j.jpowsour.2005.05.050 ↗
23. Influence of alkaline cation on the electrochemical behavior of stabilized alpha-Ni(OH)210.1007/s10008-014-2478-z ↗
24. Stacking faults in the structure of nickel hydroxide: a rationale of its high electrochemical activity10.1039/a701037k ↗
25. A comparative study of structural and electrochemical properties of high-density aluminum substituted α-nickel hydroxide containing different interlayer anions10.1016/j.jpowsour.2015.02.059 ↗
26. Effect of interlayer anions on the electrochemical performance of Al-substituted α-type nickel hydroxide electrodes10.1016/j.ijhydene.2010.01.015 ↗
27. Controlled crystallization and granulation of nano-scale β-Ni(OH)2 cathode materials of high power Ni-MH batteries10.1016/j.jpowsour.2005.03.208 ↗
28. Sonochemical synthesis and electrochemical characterization of α-nickel hydroxide: precursor effects10.1007/s10008-013-2017-3 ↗
29. Principais métodos de caracterização da porosidade de resinas à base de divinilbenzeno10.1590/S0100-40422001000600019 ↗
30. Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate10.1186/1752-153X-7-136 ↗
31. Reporting physisorption data for gas/solid systems. With special reference to the determination of surface area and porosity
32. Bestimmung der Grösse und der inneren Struktur von Kolloidteilchen mittels Röntgenstrahlen
33. Fe (II) adsorption on Ucides cordatus crab shells10.1590/S0100-40422011000600003 ↗
34. DLS and zeta potential–what they are and what they are not10.1016/j.jconrel.2016.06.017 ↗
35. 1985
36. Ni(OH)2/NiO nanosheet with opulent active sites for high-performance glucose biosensor10.1016/j.snb.2017.03.151 ↗
37. Methanol promoted synthesis of porous hierarchical α-Ni(OH)2 for the removal of congo red10.1016/j.powtec.2017.07.074 ↗
38. In Situ fabrication of Ni(OH)2 flakes on Ni foam through electrochemical corrosion as high sensitive and stable binder-free electrode for glucose sensing10.1016/j.snb.2016.09.077 ↗
39. Utilizing polyaniline to dominate the crystal phase of Ni(OH)2 and its effect on the electrochemical property of polyaniline/Ni(OH)2 composite10.1016/j.jallcom.2015.08.090 ↗
40. Hierarchical mesoporous network of amorphous α-Ni(OH)2 for high performance supercapacitor electrode material synthesized from a novel solvent deficient approach10.1016/j.electacta.2017.06.001 ↗
41. Cotton · 1999
42. Quindici · 2016
43. Synthesis and characterization of NiTiO3 yellow nano pigment with high solar radiation reflection efficiency10.1016/j.powtec.2012.10.044 ↗