C. Witham

1.8k total citations · 1 hit paper
19 papers, 1.4k citations indexed

About

C. Witham is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Renewable Energy, Sustainability and the Environment. According to data from OpenAlex, C. Witham has authored 19 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Materials Chemistry, 8 papers in Electrical and Electronic Engineering and 6 papers in Renewable Energy, Sustainability and the Environment. Recurrent topics in C. Witham's work include Hydrogen Storage and Materials (15 papers), Fuel Cells and Related Materials (7 papers) and Nuclear Materials and Properties (7 papers). C. Witham is often cited by papers focused on Hydrogen Storage and Materials (15 papers), Fuel Cells and Related Materials (7 papers) and Nuclear Materials and Properties (7 papers). C. Witham collaborates with scholars based in United States. C. Witham's co-authors include Brent Fultz, C. C. Ahn, R. C. Bowman, B. V. Ratnakumar, Daniel T. Colbert, Jie Liu, R. E. Smalley, Andrew G. Rinzler, K. A. Smith and Adrian Hightower and has published in prestigious journals such as Applied Physics Letters, Journal of The Electrochemical Society and Journal of Alloys and Compounds.

In The Last Decade

C. Witham

17 papers receiving 1.4k 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.

Hydrogen adsorption and cohesive energy of single-walled carbon nanotubes

1999 739 citations C. C. Ahn, C. Witham et al. Applied Physics Letters profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
C. Witham United States	11	1.3k	376	235	169	153	19	1.4k
Oliver Höfert Germany	17	949 0.7×	385 1.0×	233 1.0×	159 0.9×	51 0.3×	24	1.1k
Hiroyuki T. Takeshita Japan	15	1.1k 0.9×	278 0.7×	460 2.0×	103 0.6×	113 0.7×	48	1.3k
Matthias Rzepka Germany	9	665 0.5×	400 1.1×	102 0.4×	274 1.6×	128 0.8×	12	925
Jianglan Qu China	17	752 0.6×	284 0.8×	268 1.1×	297 1.8×	127 0.8×	28	971
C. S. Swamy India	25	1.7k 1.4×	149 0.4×	595 2.5×	87 0.5×	239 1.6×	62	1.9k
Woon Ih Choi South Korea	14	700 0.6×	450 1.2×	105 0.4×	188 1.1×	126 0.8×	30	970
Nick S. Norberg United States	13	2.2k 1.8×	1.1k 3.0×	238 1.0×	128 0.8×	759 5.0×	17	2.6k
Yassine Oumellal France	18	782 0.6×	973 2.6×	261 1.1×	63 0.4×	303 2.0×	28	1.4k
P. Wenger Switzerland	7	1.8k 1.4×	366 1.0×	810 3.4×	67 0.4×	257 1.7×	7	2.0k
Lennard Mooij Netherlands	12	707 0.6×	347 0.9×	203 0.9×	410 2.4×	83 0.5×	15	925

Countries citing papers authored by C. Witham

Since Specialization

Citations

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

Fields of papers citing papers by C. Witham

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. Witham

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

All Works

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19 of 19 papers shown

1.

Narayanan, S. R., Jay Whitacre, & C. Witham. (2003). Development of advanced catalysts for direct methanol fuel cells. 2 indexed citations

2.

Fultz, Brent, C. Witham, & Terrence J. Udovic. (2002). Distributions of hydrogen and strains in LaNi5 and LaNi4.75Sn0.25. Journal of Alloys and Compounds. 335(1-2). 165–175. 18 indexed citations

3.

Narayanan, S. R., T. I. Valdez, A. Kindler, et al.. (2002). Direct methanol fuel cells-status, challenges and prospects. 33–36. 3 indexed citations

4.

Hightower, Adrian, C. Witham, R. C. Bowman, et al.. (2002). Performance of LaNi/sub 4.7/Sn/sub 0.3/ metal hydride electrodes in sealed cells. 39. 399–404. 1 indexed citations

5.

Witham, C., R. C. Bowman, B. V. Ratnakumar, B. Fultz, & S. Surampudi. (2002). AB/sub 5/ metal hydride alloys for alkaline rechargeable cells. 190. 129–134. 1 indexed citations

6.

Witham, C., et al.. (2000). Thin Film Catalyst Layers for Direct Methanol Fuel Cells. NASA Technical Reports Server (NASA). 1 indexed citations

7.

Ahn, C. C., et al.. (1999). Carbon as a high capacity solid state storage medium for hydrogen. 598. 67–71.

8.

Ahn, C. C., C. Witham, Brent Fultz, et al.. (1999). Hydrogen adsorption and cohesive energy of single-walled carbon nanotubes. Applied Physics Letters. 74(16). 2307–2309. 739 indexed citations breakdown →

9.

Witham, C.. (1999). Performance of Direct Methanol Fuel Cells with Sputter-Deposited Anode Catalyst Layers. Electrochemical and Solid-State Letters. 3(11). 497–497. 87 indexed citations

10.

Ahn, C. C., et al.. (1998). Hydrogen desorption and adsorption measurements on graphite nanofibers. Applied Physics Letters. 73(23). 3378–3380. 182 indexed citations

11.

Pecharsky, V. K., et al.. (1998). Gas Atomization Processing of LaNi_5-x.M_m, Modified with Silicon and Tin. MRS Proceedings. 513. 2 indexed citations

12.

Bowman, R. C., et al.. (1997). Hydriding behavior of gas-atomized AB5 alloys. Journal of Alloys and Compounds. 253-254. 613–616. 31 indexed citations

13.

Witham, C., R. C. Bowman, & Brent Fultz. (1997). Gas-phase H2 absorption and microstructural properties of LaNi5−xGex alloys. Journal of Alloys and Compounds. 253-254. 574–578. 17 indexed citations

14.

Witham, C., Adrian Hightower, Brent Fultz, B. V. Ratnakumar, & R. C. Bowman. (1997). Electrochemical Properties of LaNi5 − x Ge x Alloys in Ni‐MH Batteries. Journal of The Electrochemical Society. 144(11). 3758–3764. 24 indexed citations

15.

Ratnakumar, B. V., et al.. (1996). ChemInform Abstract: Electrochemical Studies on LaNi5‐xSnx Metal Hydride Alloys.. ChemInform. 27(49). 14 indexed citations

16.

Witham, C., B. V. Ratnakumar, R. C. Bowman, Adrian Hightower, & Brent Fultz. (1996). Electrochemical Evaluation of LaNi5 − x Ge x Metal Hydride Alloys. Journal of The Electrochemical Society. 143(9). L205–L208. 9 indexed citations

17.

Ratnakumar, B. V., C. Witham, R. C. Bowman, Adrian Hightower, & Brent Fultz. (1996). Electrochemical Studies on LaNi5 − x Sn x Metal Hydride Alloys. Journal of The Electrochemical Society. 143(8). 2578–2584. 166 indexed citations

18.

Bowman, R. C., et al.. (1995). The effect of tin on the degradation of LaNi5−Sn metal hydrides during thermal cycling. Journal of Alloys and Compounds. 217(2). 185–192. 105 indexed citations

19.

Ratnakumar, B. V., C. Witham, B. Fultz, & G. Halpert. (1994). Electrochemical Evaluation of La‐Ni‐Sn Metal Hydride Alloys. Journal of The Electrochemical Society. 141(8). L89–L91. 19 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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