Helena Lopes

1.9k total citations
51 papers, 1.6k citations indexed

About

Helena Lopes is a scholar working on Biomedical Engineering, Geochemistry and Petrology and Industrial and Manufacturing Engineering. According to data from OpenAlex, Helena Lopes has authored 51 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Biomedical Engineering, 30 papers in Geochemistry and Petrology and 11 papers in Industrial and Manufacturing Engineering. Recurrent topics in Helena Lopes's work include Thermochemical Biomass Conversion Processes (37 papers), Coal and Its By-products (30 papers) and Heavy metals in environment (8 papers). Helena Lopes is often cited by papers focused on Thermochemical Biomass Conversion Processes (37 papers), Coal and Its By-products (30 papers) and Heavy metals in environment (8 papers). Helena Lopes collaborates with scholars based in Portugal, Netherlands and Germany. Helena Lopes's co-authors include I. Gulyurtlu, Nuno Lapa, I. Cabrita, Filomena Pinto, P. Abelha, Rui Neto André, Benilde Simões Mendes, Paula Teixeira, Ana P. Carvalho and Ana S. Mestre and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Hazardous Materials and Chemical Engineering Journal.

In The Last Decade

Helena Lopes

51 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helena Lopes Portugal 23 942 407 391 288 283 51 1.6k
Javier Ábrego Spain 17 1.2k 1.3× 293 0.7× 391 1.0× 351 1.2× 159 0.6× 29 1.6k
Gloria Gea Spain 25 1.6k 1.7× 439 1.1× 446 1.1× 575 2.0× 243 0.9× 49 2.2k
Xinqian Shu China 24 1.1k 1.1× 327 0.8× 654 1.7× 292 1.0× 164 0.6× 64 1.8k
Ìsabel Fonts Spain 22 1.7k 1.8× 359 0.9× 481 1.2× 420 1.5× 162 0.6× 33 2.0k
Małgorzata Wilk Poland 25 1.6k 1.7× 300 0.7× 613 1.6× 277 1.0× 224 0.8× 59 2.1k
Nuno Lapa Portugal 25 799 0.8× 309 0.8× 362 0.9× 400 1.4× 402 1.4× 84 1.9k
Jianhua Yan China 28 720 0.8× 377 0.9× 397 1.0× 467 1.6× 691 2.4× 101 2.3k
M. Inguanzo Spain 9 1.1k 1.2× 246 0.6× 473 1.2× 355 1.2× 118 0.4× 9 1.5k
Gözde Duman Türkiye 23 1.4k 1.5× 189 0.5× 474 1.2× 211 0.7× 125 0.4× 35 2.1k
Qiang Song China 25 894 0.9× 250 0.6× 642 1.6× 191 0.7× 354 1.3× 64 2.0k

Countries citing papers authored by Helena Lopes

Since Specialization
Citations

This map shows the geographic impact of Helena Lopes'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 Helena Lopes with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helena Lopes more than expected).

Fields of papers citing papers by Helena Lopes

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helena Lopes. 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 Helena Lopes. The network helps show where Helena Lopes may publish in the future.

Co-authorship network of co-authors of Helena Lopes

This figure shows the co-authorship network connecting the top 25 collaborators of Helena Lopes. A scholar is included among the top collaborators of Helena Lopes 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 Helena Lopes. Helena Lopes is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Dias, Diogo, María Bernardo, Nuno Lapa, et al.. (2016). Adding value to gasification and co-pyrolysis chars as removal agents of Cr3+. Journal of Hazardous Materials. 321. 173–182. 27 indexed citations
2.
Pinto, Filomena, Rui Neto André, Helena Lopes, et al.. (2015). Benefits And Drawbacks of Energetic Valorisation of Eucalyptus Globulus Stumps by Thermochemical Processes. SHILAP Revista de lepidopterología. 4 indexed citations
3.
Pinto, Filomena, Rui Neto André, Helena Lopes, et al.. (2015). Comparison of Co-gasification of Wastes Mixtures Obtained from Rice Production Wastes Using Air or Oxygen. SHILAP Revista de lepidopterología. 43. 2227–2232. 12 indexed citations
4.
Lopes, Helena, et al.. (2015). Critical aspects of biomass ashes utilization in soils: Composition, leachability, PAH and PCDD/F. Waste Management. 46. 304–315. 78 indexed citations
5.
Mestre, Ana S., et al.. (2014). Chars from gasification of coal and pine activated with K 2 CO 3 : Acetaminophen and caffeine adsorption from aqueous solutions. Journal of Colloid and Interface Science. 433. 94–103. 87 indexed citations
6.
Bernardo, María, Nuno Lapa, Margarida Gonçalves, et al.. (2014). Leaching behaviour and ecotoxicity evaluation of chars from the pyrolysis of forestry biomass and polymeric materials. Ecotoxicology and Environmental Safety. 107. 9–15. 22 indexed citations
7.
Lapa, Nuno, et al.. (2014). Biomass fly ashes as low-cost chemical agents for Pb removal from synthetic and industrial wastewaters. Journal of Colloid and Interface Science. 424. 27–36. 23 indexed citations
8.
Bernardo, María, Sandra Mendes, Nuno Lapa, et al.. (2013). Removal of lead (Pb2+) from aqueous medium by using chars from co-pyrolysis. Journal of Colloid and Interface Science. 409. 158–165. 43 indexed citations
9.
Mestre, Ana S., et al.. (2013). Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption. Chemical Engineering Journal. 240. 344–351. 84 indexed citations
10.
Bernardo, María, Nuno Lapa, Margarida Gonçalves, et al.. (2012). Physico-chemical properties of chars obtained in the co-pyrolysis of waste mixtures. Journal of Hazardous Materials. 219-220. 196–202. 85 indexed citations
11.
12.
Lopes, Helena, et al.. (2011). Characterization, leachability and valorization through combustion of residual chars from gasification of coals with pine. Waste Management. 32(4). 769–779. 20 indexed citations
13.
14.
Lopes, Helena, et al.. (2009). Leachability of automotive shredder residues burned in a fluidized bed system. Waste Management. 29(5). 1760–1765. 13 indexed citations
15.
Lapa, Nuno, et al.. (2009). Co-combustion of coal and sewage sludge: Chemical and ecotoxicological properties of ashes. Journal of Hazardous Materials. 170(2-3). 902–909. 61 indexed citations
16.
Pinto, Filomena, Rui Neto André, Carlos Franco, et al.. (2009). Co-gasification of coal and wastes in a pilot-scale installation 1: Effect of catalysts in syngas treatment to achieve tar abatement. Fuel. 88(12). 2392–2402. 69 indexed citations
17.
Pinto, Filomena, Helena Lopes, Rui Neto André, I. Gulyurtlu, & I. Cabrita. (2007). Effect of catalysts in the quality of syngas and by-products obtained by co-gasification of coal and wastes. 2: Heavy metals, sulphur and halogen compounds abatement. Fuel. 87(7). 1050–1062. 47 indexed citations
18.
Lopes, Helena, et al.. (2005). Study of Toxic Metals during Combustion of RDF in a Fluidized Bed Pilot. Environmental Engineering Science. 22(2). 241–250. 5 indexed citations
19.
Lopes, Helena, P. Abelha, J. F. Santos Oliveira, I. Cabrita, & I. Gulyurtlu. (2005). Heavy Metals Behavior during Monocombustion and Co-Combustion of Sewage Sludge. Environmental Engineering Science. 22(2). 205–220. 14 indexed citations
20.
Lopes, Helena, P. Abelha, Nuno Lapa, et al.. (2003). The behaviour of ashes and heavy metals during the co-combustion of sewage sludges in a fluidised bed. Waste Management. 23(9). 859–870. 71 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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