catalytic activity and isomerization selectivity was reached when this (La) modified Ni/HY is used. While other rare earth modified nickel catalysts shows poor catalytic performance due to the reduction of acidity feature and Ni dispersion, only a lower ratio of metallic to acid functions displayed. In 2019, a FeK/Al2O3 and rare earth elements as (La, Ce, and Y) were combined to construct a FeK/M-Al2O3 catalysts for direct CO2 hydrogenation to liquid hydrocarbons as shown by Zhang's team . So, the incorporation of M (La, Ce, and Y) was found to boost the selectivity of C5+ hydrocarbon formation and decrease the selectivity for CH4 generation. Hence, at above 20% of carbon dioxide (CO2) conversion, C5+ selectivity could be enhance about 60% with around 11% CH4 selectivity. Particularly, it discovers that the addition of rare earth element on the catalysts minify the H2 adsorption and support the adsorbed CO2 species, therefore, leading to boost the liquid hydrocarbons (C5+) selectivity over to gas hydrocarbons. Moreover, three rare-earth based composite materials (La, Ce, and Y) zeolite performances were compared by Lemos' group in terms of acidity feature and catalytic properties. Indeed, it discovers that LaHY possesses the strongest bronsted acid sites than those of essential HY and CeHY. So, it proved that LaHY catalyst present the best activity for n-heptane cracking with very low coke generation. Hence, it shows that the exchange of HY by Ce 3+ or La 3+ boosted the thermal stability, which probably due to the formation of stable oxygen complexes between lattice oxygen atoms and rare-earth cations. The thermal stability was more marked with La 3+ as compared to Ce 3+ . In addition, Du, X., et al examined three rare-earth oxides namely (La2O3, CeO2, and LaPO4) for the properties improvement of the USY zeolite catalyst as vanadium traps. In fact, it found that rare-earth oxides is thoroughly distributed on the zeolites surfaces, and some of rare-earth ions moved to cages of the zeolites under calcination and hydrothermal process. Therefore, the catalytic activity and as well as hydrothermal stability of the modified-zeolites were boosted. While in LaPO4-USYzeolite, LaPO4 was only distributed on the zeolite surface and did not impact the properties of catalyst. In order to rise light olefins yield and selectivity under catalytic cracking of propane one method was used by Pouria, R., et al to introduce (La) on ZSM-5 zeolite catalyst via wet impregnation followed by calcination step. Indeed, analysis results shows that as the temperature increased, the number of bronsted acid sites reduces and which consequently intensify light olefins generation as well as catalyst stability. Particularly, the La-ZSM-5 treated under (N2) atmosphere was largely stable than La-ZSM-5 calcined under air stream. A La/SAPO-11 catalyst was design and synthesized by Liu's group via one-pot method. It discovers that La ions raise the depolymerization of phosphorus species and interaction with aluminum and phosphorus species. It found that the presence both silicon and La ions, does not allow La ions to incorporate into zeolite framework. Then, LaPO4 conserves framework structure under steam attack. Specially, it notified that [La(OH)2] + ions compensate structure tensions and improve the bond strength of Al-O inhibiting the desilication reaction under thermal handling. Therefore, La/SAPO-11 increased isomerization reaction (about 9.5% enhance of iso-paraffin) and inhibit cracking. Du's group investigated ions location and migration in La-exchanged NaY zeolite, through calcination of LaNH4Y, LaY is prepared. So, analysis insights shows that La cations initially are located in supercages, and their hydration covering are stripped off and they move to small SI'positions of sodalite cages under heating and dehydration. Hence, it is noted that rare-earth species secure the hydrothermal stability of the zeolite to power the acid site density and catalytic features. Wang, X., et al established a consistency review on rare-earth hybrid materials engineering for further technological applications such electrocatalysis.Both development and advantages of rare-earth materials discussed, future investigation ways addressed to help scientist for rapid technological development. So, it is highlighted from Liu, P., et al's work that rare-earth (RE)-exchanged zeolite-Y is the principal active constituent of fluid catalytic cracking (FCC) catalysts. In this sense, a series of Yttrium (Y 3+ )-exchanged zeolite-Y was elaborated and characterized by physicochemical methods. As lanthanum (La 3+ ) exchanged zeolite-Y, Y 3+ cations were mainly located inside sodalite units near the double six-membered rings. It is notified that the exchange of Y 3+ cations by Na + causes a noticeable decrease of the unit cell due to the comparatively small ionic radius and high charge density of Y 3+ cations. Hence, Y 3+ -exchanged HY-based FCC catalyst exhibited better steam stability, superior selectivity for highvalue products such as ( C5+ gasoline and liquefied petroleum gas) under n-docosane cracking as compared with La 3+ -exchanged HY-based catalysts. Via liquid phase ion exchanged, a series of CeY zeolites were designed and synthesized by Zu, Y., et al's team . the fabricated materials showed adsorptive and active species sites in CeY zeolite toward ultradeep desulfurization in a fixed-bed column and as well model fuels. It is suggested that this route should play an instructive role for the development of the directive design of effective adsorption active sites for advanced desulfurization adsorbents. More recently, the investigation of LaNi5-type alloy electrocatalysts were discussed in Tamura's work for H2 evolution reaction. It is demonstrated that the synthesized catalysts (LaNi5-type alloy) displayed high catalytic compared with the constituent metals, and their activities were nearly competitive with those of Pt, and Pd catalysts. The control of temperature, and current density, avoid the catalysts (LaNi5-type alloy) surface alteration. Furthermore, a supposed cost-effective catalyst (Pt1.5La1.5Ni12/NPC) was reported by Zheng, L, et al's team for the hydrogen generation through hydrogen evolution reaction (HER) in alkaline media (1.0 M KOH). Indeed, due to the synergistic effect between element as Pt, La, Ni, and as well as nanocarbon support, the designed (Pt1.5La1.5Ni12/NPC) displays highest catalytic performances for the HER which outperforms all the considered material catalysts in this study and even commercial Pt/C catalyst. It needs ultralow overpotential of 20 mV and 132 mV to achieve 10 and 100 mA under the HER respectively. In 2020, it is reported from Zou, H.-H., et al's work a photoelectrochemical (PEC) water splitting under the action of novel LTO/LaOCl@N-C microspheres heterostructures (MH) for hydrogen generation. The hold hybrid photocatalyst LTO/LaOCl@N-C (MH) exhibited outstanding PEC hydrogen evolution feature and as well as better durability when compared to the pure LTO material. So, at 0.7 V vs RHE, under simulated solar irradiation, the designed photoecatalyst shows higher performance of photoecatalytic hydrogen evolution rate, which was as high as 26.43 µmol/h*cm. Therefore, it is mentioned that LTO/LaOCl@N-C (MH) photoecatalyst surpasses many previously suggested materials based on LTO composite catalysts. Recently, Ye, X., et al suggested a bifunctional metastable LaOCl@hcp-Ni nanocomposite photoecatalyst and photocatalytic activities via Schottky effect engineering for environmental remediation and electrocatalysis applications. So, it is thought that this material (LaOCl@hcp-Ni) might be a potential rare-earth based Schottky catalyst for both photoelectrocatalytic oxygen evolution and as well as photocatalytic degradation of organic pollutants. In addition, in 2022, Gogoi's team reported a BiOCl-LaOCl-1 composite catalyst for organic compound removal such Rhodamine B in aqueous media. So, under sunlight, the proposed catalyst (BiOCl-LaOCl-1) delivers the highest catalytic activity of Rhodamine removal, thus allowing it to outperform all the considered catalyst materials in the study, such as BiOCl and LaOCl semiconductors. A N-regulated lanthanum phosphate (N-LaPO4/C) was adopted by Zhao's team as a model catalyst for alkaline oxygen reduction reaction (ORR), as it is an important electrochemical energy conversion devices. Indeed, it is experimentally demonstrated that the N-LaPO4/C exhibits superior ORR activity and stability, which outperforms the commercial Pt/C catalyst. So, the N-doped LaPO4 in the N-LaPO4/C is identified to be the active sites, and the N regulation function on lanthanum is believed to ensure enhance the catalytic activity of N-LaPO4/C under the ORR. Also, it is provided that N-LaPO4/C plus Ru2O demonstrated higher power density and as well as long life cycle, which lets to suggest these materials as potential candidate in rechargeable Zn-air batteries as an air cathode. Moreover, Liu, C., et al constructed a bifunctional LaNxC4-xdoped graphene in acidic-alkaline omnipotent electrocatalyst for oxygen electrode reaction. Indeed, the developed material (LaNxC4-x-Gra) with an appropriate composition of LaN2C2hex-Gra exhibits potential bifunctional performance with the original oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) overpotentials of 0.68 V and 0.56 V respectively accompanied by OH ligands modification. Therefore, as fully shown here materials engineering of advanced hybrid materials through the use of rare-earth (RE) materials such Lanthanum (La), Cerium (Ce), Yttrium (Y), Neodymium, Samarium, Europium, and so fourth should be considered to design and synthesized powerfully active composite materials for high-tech applications such as environmental, catalysis, electrochemical sensors, Biosensors, water managements, beyond technologies. Rareearth (RE) will be highly considered as platinum group metal-based materials is not cost-effective than (RE).