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.
Ammonia sensors and their applications—a review
20051.4k citationsB. Timmer, Wouter Olthuis et al.Sensors and Actuators B Chemicalprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of B. Timmer'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 B. Timmer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites B. Timmer more than expected).
This network shows the impact of papers produced by B. Timmer. 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 B. Timmer. The network helps show where B. Timmer may publish in the future.
Co-authorship network of co-authors of B. Timmer
This figure shows the co-authorship network connecting the top 25 collaborators of B. Timmer.
A scholar is included among the top collaborators of B. Timmer 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 B. Timmer. B. Timmer is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Connolly, E.J., B. Timmer, H.T.M. Pham, et al.. (2006). Porous SiC as an ammonia sensor. University of Twente Research Information. 99. 178–181.3 indexed citations
3.
Timmer, B., Wouter Olthuis, & Albert van den Berg. (2005). Ammonia sensors and their applications—a review. Sensors and Actuators B Chemical. 107(2). 666–677.1421 indexed citations breakdown →
4.
Connolly, E.J., B. Timmer, H.T.M. Pham, et al.. (2005). A porous SiC ammonia sensor. Sensors and Actuators B Chemical. 109(1). 44–46.73 indexed citations
5.
Connolly, E.J., B. Timmer, H.T.M. Pham, et al.. (2004). An ammonia sensor based on porous SiC. University of Twente Research Information. 871–872.1 indexed citations
Timmer, B., Wouter Olthuis, Piet Bergveld, & Albert van den Berg. (2002). Miniaturization of an ammonia sampler. University of Twente Research Information.
8.
Timmer, B., Wouter Sparreboom, Wouter Olthuis, P. Bergveld, & Albert van den Berg. (2001). Planar interdigitated conductivity sensors for low electrolyte concentrations. University of Twente Research Information. 878–883.16 indexed citations
Timmer, B., M. Sluyters‐Rehbach, & J.H. Sluyters. (1968). On the impedance of galvanic cells. Journal of Electroanalytical Chemistry. 19(1-2). 73–83.40 indexed citations
15.
Sluyters‐Rehbach, M., B. Timmer, & J.H. Sluyters. (1967). On the Impedance of Galvanic Cells. Zeitschrift für Physikalische Chemie. 52(1_4). 89–103.30 indexed citations
16.
Timmer, B., M. Sluyters‐Rehbach, & J.H. Sluyters. (1967). On the impedance of galvanic cells. Journal of Electroanalytical Chemistry. 14(2). 169–180.46 indexed citations
Timmer, B., M. Sluyters‐Rehbach, & J.H. Sluyters. (1967). On the impedance of galvanic cells. Journal of Electroanalytical Chemistry. 14(2). 181–191.63 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.