Alfredo Ortiz

4.2k total citations · 2 hit papers
76 papers, 3.4k citations indexed

About

Alfredo Ortiz is a scholar working on Mechanical Engineering, Electrical and Electronic Engineering and Catalysis. According to data from OpenAlex, Alfredo Ortiz has authored 76 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Mechanical Engineering, 29 papers in Electrical and Electronic Engineering and 27 papers in Catalysis. Recurrent topics in Alfredo Ortiz's work include Membrane Separation and Gas Transport (25 papers), Ionic liquids properties and applications (20 papers) and Fuel Cells and Related Materials (19 papers). Alfredo Ortiz is often cited by papers focused on Membrane Separation and Gas Transport (25 papers), Ionic liquids properties and applications (20 papers) and Fuel Cells and Related Materials (19 papers). Alfredo Ortiz collaborates with scholars based in Spain, United States and Portugal. Alfredo Ortiz's co-authors include Inmaculada Ortíz, Daniel Gorri, Lucía Gómez‐Coma, Mariana Díaz, Marcos Fallanza, V.M. Ortiz-Martínez, Raquel Ibáñez, André B. de Haan, Emília Tojo and Ángel Irabien and has published in prestigious journals such as Renewable and Sustainable Energy Reviews, Chemistry of Materials and The Science of The Total Environment.

In The Last Decade

Alfredo Ortiz

75 papers receiving 3.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

State-of-the-art and perspectives of the catalytic and electrocatalytic reduction of aqueous nitrates

2017 469 citations Alfredo Ortiz, Inmaculada Ortíz et al. profile →
Global diagnosis of nitrate pollution in groundwater and review of removal technologies

2021 413 citations Lucía Gómez‐Coma, Inmaculada Ortíz et al. The Science of The Total Environment profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Alfredo Ortiz Spain	32	1.4k	970	831	666	654	76	3.4k
Muhammad Tawalbeh United Arab Emirates	39	429 0.3×	1.6k 1.7×	905 1.1×	965 1.4×	1.0k 1.5×	124	5.0k
Klaus Hellgardt United Kingdom	44	1.2k 0.9×	753 0.8×	1.4k 1.7×	1.7k 2.6×	1.7k 2.6×	187	5.9k
Xinhai Yu China	28	602 0.4×	322 0.3×	1.6k 1.9×	942 1.4×	904 1.4×	81	3.2k
Zhanlong Song China	38	763 0.6×	574 0.6×	1.6k 1.9×	1.3k 1.9×	1.7k 2.5×	179	4.3k
Asif Hussain Khoja Pakistan	33	795 0.6×	671 0.7×	667 0.8×	1.5k 2.3×	1.1k 1.7×	120	3.4k
Hussameldin Ibrahim Canada	30	1.0k 0.7×	233 0.2×	866 1.0×	1.0k 1.5×	779 1.2×	127	2.8k
Zhiyong Tang China	31	554 0.4×	583 0.6×	714 0.9×	823 1.2×	623 1.0×	100	2.7k
R. Reimert Germany	24	1.2k 0.9×	779 0.8×	745 0.9×	1.2k 1.8×	680 1.0×	83	3.2k
Dong Suk Han Qatar	39	431 0.3×	1.2k 1.3×	838 1.0×	1.8k 2.6×	1.0k 1.6×	165	4.6k
Kangkang Li China	32	602 0.4×	684 0.7×	1.8k 2.2×	724 1.1×	1.0k 1.5×	108	3.5k

Countries citing papers authored by Alfredo Ortiz

Since Specialization

Citations

This map shows the geographic impact of Alfredo Ortiz's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Alfredo Ortiz with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alfredo Ortiz more than expected).

Fields of papers citing papers by Alfredo Ortiz

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alfredo Ortiz. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Alfredo Ortiz. The network helps show where Alfredo Ortiz may publish in the future.

Co-authorship network of co-authors of Alfredo Ortiz

This figure shows the co-authorship network connecting the top 25 collaborators of Alfredo Ortiz. A scholar is included among the top collaborators of Alfredo Ortiz based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Alfredo Ortiz. Alfredo Ortiz is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Ortiz, Alfredo, et al.. (2025). Matrimid®/ZIF-8 hollow fiber mixed matrix membranes for hydrogen recovery from industrial waste streams. Separation and Purification Technology. 362. 131890–131890. 2 indexed citations

Ortiz, Alfredo, et al.. (2024). Matrimid®/LaNi5 mixed matrix membranes for selective hydrogen separation from industrial waste gas streams. Journal of Membrane Science. 717. 123591–123591. 2 indexed citations

Oliveira, Gerlon de Almeida Ribeiro, et al.. (2024). Highly Selective CO₂/CH₄Membranes Based on Ethanolamine Ionic Liquids. Industrial & Engineering Chemistry Research. 63(18). 8306–8318. 7 indexed citations

Huerta, R., et al.. (2023). Assessment of Data Capture Conditions Effect on Reverse Electrodialysis Process Using a DC Electronic Load. Energies. 16(21). 7282–7282. 1 indexed citations

Gómez‐Coma, Lucía, Alfredo Ortiz, C.M. Rangel, et al.. (2023). Sustainable Additives for the Production of Hydrogen via Sodium Borohydride Hydrolysis. Applied Sciences. 13(12). 6995–6995. 6 indexed citations

Fallanza, Marcos, et al.. (2023). Thin-Film Composite Matrimid-Based Hollow Fiber Membranes for Oxygen/Nitrogen Separation by Gas Permeation. Membranes. 13(2). 218–218. 19 indexed citations

Veerman, J.A., Lucía Gómez‐Coma, Alfredo Ortiz, & Inmaculada Ortíz. (2023). Resistance of Ion Exchange Membranes in Aqueous Mixtures of Monovalent and Divalent Ions and the Effect on Reverse Electrodialysis. Membranes. 13(3). 322–322. 14 indexed citations

Ortiz, Alfredo, et al.. (2023). Hydrogen recovery from industrial waste streams using Matrimid®/ZIF mixed matrix membranes. International Journal of Hydrogen Energy. 51. 210–224. 13 indexed citations

Fernández‐Ríos, Ana, Javier Pinedo, Esther Santos, et al.. (2022). Environmental sustainability of alternative marine propulsion technologies powered by hydrogen - a life cycle assessment approach. The Science of The Total Environment. 820. 153189–153189. 71 indexed citations

10.

Gómez‐Coma, Lucía, et al.. (2021). Global diagnosis of nitrate pollution in groundwater and review of removal technologies. The Science of The Total Environment. 810. 152233–152233. 413 indexed citations breakdown →

11.

Ortiz, Alfredo, et al.. (2021). Challenges and prospects of renewable hydrogen-based strategies for full decarbonization of stationary power applications. Renewable and Sustainable Energy Reviews. 152. 111628–111628. 179 indexed citations

12.

Ortiz, Alfredo, et al.. (2020). Comparative performance of commercial polymeric membranes in the recovery of industrial hydrogen waste gas streams. International Journal of Hydrogen Energy. 46(33). 17507–17521. 55 indexed citations

13.

Ortiz, Alfredo, et al.. (2019). New Polymer Catalytic Membranes for Nitrite Reduction: Experimental Assessment. UCrea (University of Cantabria). 5(2). 157–164. 5 indexed citations

14.

Ortiz, Alfredo, et al.. (2017). Generalized predictive modeling for facilitated transport membranes accounting for fixed and mobile carriers. Journal of Membrane Science. 542. 168–176. 21 indexed citations

15.

Ortiz, Alfredo, et al.. (2016). Facilitated Transport of Propylene Through Composite Polymer-Ionic Liquid Membranes. Mass Transfer Analysis. Chemical Product and Process Modeling. 11(1). 77–81. 7 indexed citations

16.

Díaz, Mariana, Alfredo Ortiz, Mehmet Işık, David Mecerreyes, & Inmaculada Ortíz. (2015). Highly conductive electrolytes based on poly([HSO3-BVIm][TfO])/[HSO3-BMIm][TfO] mixtures for fuel cell applications. International Journal of Hydrogen Energy. 40(34). 11294–11302. 29 indexed citations

17.

Sánchez, Daniel García, Alfredo Ortiz, & K. Andreas Friedrich. (2013). Oscillation of PEFC under Low Cathode Humidification: Effect of Gravitation and Bipolar Plate Design. ECS Transactions. 58(1). 209–221. 1 indexed citations

18.

Fallanza, Marcos, Alfredo Ortiz, Daniel Gorri, & Inmaculada Ortíz. (2011). Improving the mass transfer rate in G–L membrane contactors with ionic liquids as absorption medium. Recovery of propylene. Journal of Membrane Science. 385-386. 217–225. 11 indexed citations

19.

Ortiz, Alfredo, Ignacio Fernández-Olmo, Ane Urtiaga, & Inmaculada Ortíz. (2009). Modeling of Iron Removal from Spent Passivation Baths by Ion Exchange in Fixed-Bed Operation. Industrial & Engineering Chemistry Research. 48(15). 7448–7452. 11 indexed citations

20.

Ortiz, F., et al.. (2007). Artificial neural networks approach to the voltage sag classification. Renewable Energy and Power Quality Journal. 1(5). 426–430. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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