Bruno Valentim

2.1k total citations · 1 hit paper
85 papers, 1.7k citations indexed

About

Bruno Valentim is a scholar working on Geochemistry and Petrology, Ocean Engineering and Building and Construction. According to data from OpenAlex, Bruno Valentim has authored 85 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Geochemistry and Petrology, 25 papers in Ocean Engineering and 21 papers in Building and Construction. Recurrent topics in Bruno Valentim's work include Coal and Its By-products (46 papers), Coal Properties and Utilization (25 papers) and Recycling and utilization of industrial and municipal waste in materials production (21 papers). Bruno Valentim is often cited by papers focused on Coal and Its By-products (46 papers), Coal Properties and Utilization (25 papers) and Recycling and utilization of industrial and municipal waste in materials production (21 papers). Bruno Valentim collaborates with scholars based in Portugal, United States and Italy. Bruno Valentim's co-authors include Alexandra Guedes, Fernando Noronha, Ángel Carmelo Prieto Colorado, James C. Hower, Deolinda Flores, Colin R. Ward, Sandra Rodrigues, Jennifer M.K. O’Keefe, Anne Raymond and Cortland F. Eble and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Cleaner Production and International Journal of Hydrogen Energy.

In The Last Decade

Bruno Valentim

82 papers receiving 1.7k citations

Hit Papers

On the fundamental difference between coal rank and coal ... 2013 2026 2017 2021 2013 50 100 150 200 250
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.

  1. On the fundamental difference between coal rank and coal type
    2013 295 citations Bruno Valentim, N. Wagner et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Bruno Valentim Portugal 22 842 519 515 330 276 85 1.7k
Ruoyu Sun China 38 1.3k 1.5× 637 1.2× 443 0.9× 476 1.4× 219 0.8× 132 4.1k
Wenfeng Wang China 23 742 0.9× 451 0.9× 316 0.6× 104 0.3× 167 0.6× 119 1.7k
Christina Lopano United States 26 630 0.7× 569 1.1× 413 0.8× 63 0.2× 260 0.9× 57 1.9k
N. Wagner South Africa 23 1.6k 1.9× 1.1k 2.1× 1.2k 2.3× 552 1.7× 256 0.9× 90 3.0k
Ángeles G. Borrego Spain 32 705 0.8× 549 1.1× 532 1.0× 1.2k 3.7× 110 0.4× 98 2.4k
Isabel Suárez‐Ruíz Spain 34 1.2k 1.5× 1.1k 2.0× 1.3k 2.5× 852 2.6× 190 0.7× 102 3.5k
David C. Sego Canada 32 164 0.2× 497 1.0× 1.2k 2.4× 188 0.6× 159 0.6× 129 4.0k
Ningning Zhang China 26 668 0.8× 208 0.4× 109 0.2× 316 1.0× 370 1.3× 91 2.0k
Cunliang Zhao China 26 1.6k 1.9× 744 1.4× 451 0.9× 145 0.4× 402 1.5× 68 2.1k

Countries citing papers authored by Bruno Valentim

Since Specialization
Citations

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

Fields of papers citing papers by Bruno Valentim

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Bruno Valentim

This figure shows the co-authorship network connecting the top 25 collaborators of Bruno Valentim. A scholar is included among the top collaborators of Bruno Valentim 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 Bruno Valentim. Bruno Valentim 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.
Predeanu, Georgeta, Bruno Valentim, Luminiţa Popescu, et al.. (2025). Characterization of the ash samples before and after thermal processing aiming phosphorus extraction and residues valorization. Institutional Research Information System (Università degli Studi di Brescia). 307. 104808–104808.
2.
Valentim, Bruno, et al.. (2024). Variation in the Composition of Municipal Solid Waste Incineration Ash. Minerals. 14(11). 1146–1146. 2 indexed citations
3.
Guimarães, Renato Fontes, et al.. (2024). Mitigating CO2 emissions through an industrial symbiosis approach: Leveraging cork ash carbonation. Heliyon. 10(12). e32893–e32893. 5 indexed citations
4.
Massa, Mark S., et al.. (2024). Improving phosphorus availability in sewage sludge ash through a novel microwave‐based technology. Water and Environment Journal. 39(1). 35–46. 1 indexed citations
5.
Sant’Ovaia, Helena, Cláudia Cruz, Alexandra Guedes, et al.. (2023). Contamination Fingerprints in an Inactive W (Sn) Mine: The Regoufe Mine Study Case (Northern Portugal). Minerals. 13(4). 497–497. 1 indexed citations
6.
Kuźniarska‐Biernacka, Iwona, Bruno Valentim, Alexandra Guedes, et al.. (2023). Highly Efficient and Magnetically Recyclable Non-Noble Metal Fly Ash-Based Catalysts for 4-Nitrophenol Reduction. Catalysts. 14(1). 3–3. 3 indexed citations
7.
Cruz, Cláudia, Eric Font, David French, et al.. (2023). Physicochemical Properties of Fe-Bearing Phases from Commercial Colombian Coal Ash. Minerals. 13(8). 1055–1055. 7 indexed citations
8.
Valentim, Bruno, et al.. (2023). The Influence of Liquid/Solid Ratio and Pressure on the Natural and Accelerated Carbonation of Alkaline Wastes. Minerals. 13(8). 1060–1060. 11 indexed citations
9.
Nunes, Marta, et al.. (2022). Assessment of coal fly ash char as a substituting material of graphite with electrocatalytic activity for the oxygen reduction reaction. Sustainable Chemistry and Pharmacy. 27. 100705–100705. 2 indexed citations
10.
Mousa, Elsayed, Xianfeng Hu, Guozhu Ye, et al.. (2022). Characterization and Thermal Treatment of the Black Mass from Spent Lithium-Ion Batteries. Sustainability. 15(1). 15–15. 29 indexed citations
11.
Fahimi, Ario, Elza Bontempi, Alexandra Guedes, et al.. (2022). Incineration of Aviary Manure: The Case Studies of Poultry Litter and Laying Hens Manure. Waste and Biomass Valorization. 13(7). 3335–3357. 13 indexed citations
12.
Assi, Ahmad, Ario Fahimi, Bruno Valentim, et al.. (2021). Simultaneous amorphous silica and phosphorus recovery from rice husk poultry litter ash. RSC Advances. 11(15). 8927–8939. 14 indexed citations
13.
Fahimi, Ario, Alessandra Zanoletti, Bruno Valentim, et al.. (2021). Phosphorous and Silica Recovery from Rice Husk Poultry Litter Ash: A Sustainability Analysis Using a Zero-Waste Approach. Materials. 14(21). 6297–6297. 7 indexed citations
14.
Fahimi, Ario, Fabjola Bilo, Ahmad Assi, et al.. (2020). Poultry litter ash characterisation and recovery. Waste Management. 111. 10–21. 34 indexed citations
15.
Khatibi, Seyedalireza, Arash Abarghani, Kouqi Liu, et al.. (2020). Backtracking to Parent Maceral from Produced Bitumen with Raman Spectroscopy. Minerals. 10(8). 679–679. 9 indexed citations
16.
Lázaro‐Martínez, Juan M., Barbara Białecka, Mihai Cruceru, et al.. (2020). Assessment of Graphitized Coal Ash Char Concentrates as a Potential Synthetic Graphite Source. Minerals. 10(11). 986–986. 22 indexed citations
17.
Fahimi, Ario, Stefania Federici, Laura E. Depero, et al.. (2020). Evaluation of the sustainability of technologies to recover phosphorus from sewage sludge ash based on embodied energy and CO2 footprint. Journal of Cleaner Production. 289. 125762–125762. 32 indexed citations
18.
Valentim, Bruno, Barbara Białecka, Paula Alexandra Gonçalves, et al.. (2018). Undifferentiated Inorganics in Coal Fly Ash and Bottom Ash: Calcispheres, Magnesiacalcispheres, and Magnesiaspheres. Minerals. 8(4). 140–140. 27 indexed citations
19.
Cruceru, Mihai, et al.. (2018). Coal Ash Inorganic Residue as Raw Material for Construction Elements. 3.
20.
Cruceru, Mihai, et al.. (2017). Utilization of Coal-Fired Ash Waste in the Production of Heat-Resistant Refractory Products. 2. 3 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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