Aaron Appel

Senior Scientist

  • United States

  • 3958 Citations
  • 32 h-Index
20022020

Research output per year

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Research Output

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Article
2020

The H•/H- Redox Couple and Absolute Hydration Energy of H

McNeill, A. S., Zhan, C. G., Appel, A. M., Stanbury, D. M. & Dixon, D. A., Jul 23 2020, In : The journal of physical chemistry. A. 124, 29, p. 6084-6095 12 p.

Research output: Contribution to journalArticle

2019

Thermodynamic and kinetic studies of H2 and N2 binding to bimetallic nickel-group 13 complexes and neutron structure of a Ni(η2-H2) adduct

Cammarota, R. C., Xie, J., Burgess, S. A., Vollmer, M. V., Vogiatzis, K. D., Ye, J., Linehan, J. C., Appel, A. M., Hoffmann, C., Wang, X., Young, V. G. & Lu, C. C., Jan 1 2019, In : Chemical Science. 10, 29, p. 7029-7042 14 p.

Research output: Contribution to journalArticle

Open Access
4 Citations (Scopus)
2017

A Bimetallic Nickel-Gallium Complex Catalyzes CO2 Hydrogenation via the Intermediacy of an Anionic d10 Nickel Hydride

Cammarota, R. C., Vollmer, M. V., Xie, J., Ye, J., Linehan, J. C., Burgess, S. A., Appel, A. M., Gagliardi, L. & Lu, C. C., Oct 11 2017, In : Journal of the American Chemical Society. 139, 40, p. 14244-14250 7 p.

Research output: Contribution to journalArticle

44 Citations (Scopus)

Changing the Mechanism for CO2 Hydrogenation Using Solvent-Dependent Thermodynamics

Burgess, S. A., Appel, A. M., Linehan, J. C. & Wiedner, E. S., Nov 20 2017, In : Angewandte Chemie - International Edition. 56, 47, p. 15002-15005 4 p.

Research output: Contribution to journalArticle

20 Citations (Scopus)

Hydrogenation of CO2 at Room Temperature and Low Pressure with a Cobalt Tetraphosphine Catalyst

Burgess, S. A., Grubel, K., Appel, A., Wiedner, E. & Linehan, J., Jul 17 2017, In : Inorganic Chemistry. 56, 14, p. 8580-8589 10 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Hydrogenation of CO2 in Water Using a Bis(diphosphine) Ni-H Complex

Burgess, S. A., Kendall, A. J., Tyler, D. R., Linehan, J. & Appel, A., Apr 7 2017, In : ACS Catalysis. 7, 4, p. 3089-3096 8 p.

Research output: Contribution to journalArticle

39 Citations (Scopus)

Impact of Weak Agostic Interactions in Nickel Electrocatalysts for Hydrogen Oxidation

Klug, C. M., O'Hagan, M., Bullock, R. M., Appel, A. & Wiedner, E., Jun 26 2017, In : Organometallics. 36, 12, p. 2275-2284 10 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
25 Citations (Scopus)

Understanding the Relationship between Kinetics and Thermodynamics in CO2 Hydrogenation Catalysis

Jeletic, M. S., Hulley, E. B., Helm, M. L., Mock, M. T., Appel, A. M., Wiedner, E. S. & Linehan, J. C., Sep 1 2017, In : ACS Catalysis. 7, 9, p. 6008-6017 10 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)
2016

Controlling Proton Delivery through Catalyst Structural Dynamics

Cardenas, A. J. P., Ginovska, B., Kumar, N., Hou, J., Raugei, S., Helm, M. L., Appel, A. M., Bullock, R. M. & O'Hagan, M., Jan 1 2016, In : Angewandte Chemie - International Edition. 55, 43, p. 13509-13513 5 p.

Research output: Contribution to journalArticle

25 Citations (Scopus)

Evaluating the Thermodynamics of Electrocatalytic N2 Reduction in Acetonitrile

Lindley, B. M., Appel, A., Krogh-Jespersen, K., Mayer, J. M. & Miller, A. J. M., Oct 14 2016, In : ACS Energy Letters. 1, 4, p. 698-704 7 p.

Research output: Contribution to journalArticle

43 Citations (Scopus)
46 Citations (Scopus)

Facile P−C/C−H Bond-Cleavage Reactivity of Nickel Bis(diphosphine) Complexes

Zhang, S., Li, H., Appel, A., Hall, M. B. & Bullock, R. M., Jul 4 2016, In : Chemistry - A European Journal. 22, 28, p. 9493-9497 5 p.

Research output: Contribution to journalArticle

Solvent influence on the thermodynamics for hydride transfer from bis(diphosphine) complexes of nickel

Connelly Robinson, S. J., Zall, C. M., Miller, D. L., Linehan, J. & Appel, A., 2016, In : Dalton Transactions. 45, 24, p. 10017-10023 7 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Triphosphine-Ligated Copper Hydrides for CO2 Hydrogenation: Structure, Reactivity, and Thermodynamic Studies

Zall, C. M., Linehan, J. & Appel, A., Aug 10 2016, In : Journal of the American Chemical Society. 138, 31, p. 9968-9977 10 p.

Research output: Contribution to journalArticle

49 Citations (Scopus)
2015

A Molecular Copper Catalyst for Hydrogenation of CO2 to Formate

Zall, C. M., Linehan, J. C. & Appel, A. M., Aug 5 2015, In : ACS Catalysis. 5, 9, p. 5301-5305 5 p.

Research output: Contribution to journalArticle

78 Citations (Scopus)

Nickel complexes of a binucleating ligand derived from an SCS pincer

Peterson, S. M., Helm, M. L. & Appel, A. M., Jan 14 2015, In : Dalton Transactions. 44, 2, p. 747-752 6 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Nickel phosphine catalysts with pendant amines for electrocatalytic oxidation of alcohols

Weiss, C. J., Wiedner, E. S., Roberts, J. A. S. & Appel, A. M., Apr 11 2015, In : Chemical Communications. 51, 28, p. 6172-6174 3 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Standard Reduction Potentials for Oxygen and Carbon Dioxide Couples in Acetonitrile and N,N-Dimethylformamide

Pegis, M. L., Roberts, J., Wasylenko, D. J., Mader, E. A., Appel, A. & Mayer, J. M., Dec 7 2015, In : Inorganic Chemistry. 54, 24, p. 11883-11888 6 p.

Research output: Contribution to journalArticle

87 Citations (Scopus)

Synthesis and characterization of a triphos ligand derivative and the corresponding PdII complexes

Miller, D. L., Boro, B. J., Grubel, K., Helm, M. & Appel, A., Dec 1 2015, In : European Journal of Inorganic Chemistry. 2015, 35, p. 5781-5785 5 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2014

A cobalt hydride catalyst for the hydrogenation of CO2: Pathways for catalysis and deactivation

Jeletic, M. S., Helm, M. L., Hulley, E. B., Mock, M. T., Appel, A. M. & Linehan, J. C., Oct 3 2014, In : ACS Catalysis. 4, 10, p. 3755-3762 8 p.

Research output: Contribution to journalArticle

67 Citations (Scopus)

Carbon-fuelled future

Appel, A. M., Jan 1 2014, Chemistry and Industry (London), 78, 4, p. 36-39 4 p.

Research output: Contribution to specialist publicationArticle

Catalytic oxidation of alcohol via nickel phosphine complexes with pendant amines

Weiss, C. J., Das, P., Miller, D. L., Helm, M. L. & Appel, A. M., Sep 5 2014, In : ACS Catalysis. 4, 9, p. 2951-2958 8 p.

Research output: Contribution to journalArticle

32 Citations (Scopus)

Determining the overpotential for a molecular electrocatalyst

Appel, A. M. & Helm, M. L., Feb 7 2014, In : ACS Catalysis. 4, 2, p. 630-633 4 p.

Research output: Contribution to journalArticle

153 Citations (Scopus)
12 Citations (Scopus)

Mechanistic insights into hydride transfer for catalytic hydrogenation of CO2 with cobalt complexes

Kumar, N., Camaioni, D. M., Dupuis, M., Raugei, S. & Appel, A. M., Aug 21 2014, In : Dalton Transactions. 43, 31, p. 11803-11806 4 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)
171 Citations (Scopus)
9 Citations (Scopus)
2013

A cobalt-based catalyst for the hydrogenation of CO2 under ambient conditions

Jeletic, M. S., Mock, M. T., Appel, A. M. & Linehan, J. C., Aug 7 2013, In : Journal of the American Chemical Society. 135, 31, p. 11533-11536 4 p.

Research output: Contribution to journalArticle

222 Citations (Scopus)

Conformational dynamics and proton relay positioning in nickel catalysts for hydrogen production and oxidation

Franz, J. A., O'Hagan, M., Ho, M. H., Liu, T., Helm, M. L., Lense, S., Dubois, D. L., Shaw, W. J., Appel, A. M., Raugei, S. & Bullock, R. M., Dec 9 2013, In : Organometallics. 32, 23, p. 7034-7042 9 p.

Research output: Contribution to journalArticle

25 Citations (Scopus)

Electrocatalytic oxidation of formate with nickel diphosphine dipeptide complexes: Effect of ligands modified with amino acids

Galan, B. R., Reback, M. L., Jain, A., Appel, A. M. & Shaw, W. J., Oct 1 2013, In : European Journal of Inorganic Chemistry. 30, p. 5366-5371 6 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Incorporation of hydrogen-bonding functionalities into the second coordination sphere of iron-based water-oxidation catalysts

Hoffert, W. A., Mock, M. T., Appel, A. M. & Yang, J. Y., 2013, In : European Journal of Inorganic Chemistry. 22-23, p. 3846-3857 12 p.

Research output: Contribution to journalArticle

48 Citations (Scopus)

PH-dependent reduction potentials and proton-coupled electron transfer mechanisms in hydrogen-producing nickel molecular electrocatalysts

Horvath, S., Fernandez, L. E., Appel, A. M. & Hammes-Schiffer, S., Apr 1 2013, In : Inorganic Chemistry. 52, 7, p. 3643-3652 10 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)

Rapid, reversible heterolytic cleavage of bound H2

Hulley, E. B., Welch, K. D., Appel, A. M., Dubois, D. L. & Bullock, R. M., Aug 14 2013, In : Journal of the American Chemical Society. 135, 32, p. 11736-11739 4 p.

Research output: Contribution to journalArticle

55 Citations (Scopus)
60 Citations (Scopus)
2012

Formate oxidation via β-deprotonation in [Ni(PR 2NR'2)2(CH3CN)] 2+ complexes

Seu, C. S., Appel, A. M., Doud, M. D., Dubois, D. L. & Kubiak, C. P., Apr 2012, In : Energy and Environmental Science. 5, 4, p. 6480-6490 11 p.

Research output: Contribution to journalArticle

45 Citations (Scopus)

Incorporating amino acid esters into catalysts for hydrogen oxidation: Steric and electronic effects and the role of water as a base

Lense, S., Ho, M. H., Chen, S., Jain, A., Raugei, S., Linehan, J. C., Roberts, J. A. S., Appel, A. M. & Shaw, W., Oct 8 2012, In : Organometallics. 31, 19, p. 6719-6731 13 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

Investigating the role of the outer-coordination sphere in [Ni(P Ph 2N Ph-R 2) 2] 2+ hydrogenase mimics

Jain, A., Reback, M. L., Lindstrom, M. L., Thogerson, C. E., Helm, M. L., Appel, A. M. & Shaw, W. J., Jun 18 2012, In : Inorganic Chemistry. 51, 12, p. 6592-6602 11 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)
2011

[Ni(PPh2NBn2) 2(CH3CN)]2+ as an electrocatalyst for H 2 production: Dependence on acid strength and isomer distribution

Appel, A. M., Pool, D. H., O'Hagan, M., Shaw, W. J., Yang, J. Y., Rakowski Dubois, M., Dubois, D. L. & Bullock, R. M., Jul 1 2011, In : ACS Catalysis. 1, 7, p. 777-785 9 p.

Research output: Contribution to journalArticle

84 Citations (Scopus)

[Ni(PPh 2NC6H4X 2) 2]2+ Complexes as electrocatalysts for H2 production: Effect of substituents, acids, and water on catalytic rates

Kilgore, U. J., Roberts, J. A. S., Pool, D. H., Appel, A. M., Stewart, M. P., Dubois, M. R., Dougherty, W. G., Kassel, W. S., Bullock, R. M. & Dubois, D. L., Apr 20 2011, In : Journal of the American Chemical Society. 133, 15, p. 5861-5872 12 p.

Research output: Contribution to journalArticle

271 Citations (Scopus)

Electrocatalytic oxidation of formate by [Ni(PR 2NR′2)2(CH3CN)] 2+ complexes

Galan, B. R., Schöffel, J., Linehan, J. C., Seu, C., Appel, A. M., Roberts, J. A. S., Helm, M. L., Kilgore, U. J., Yang, J. Y., Dubois, D. L. & Kubiak, C. P., Aug 17 2011, In : Journal of the American Chemical Society. 133, 32, p. 12767-12779 13 p.

Research output: Contribution to journalArticle

78 Citations (Scopus)
2009

Activation of the S-H group in Fe(μ2-SH)Fe clusters: S-H bond strengths and free radical reactivity of the Fe(μ2-SH)Fe cluster

Franz, J. A., Lee, S. J., Bowden, T. A., Alnajjar, M. S., Appel, A. M., Birnbaum, J. C., Bitterwolf, T. E. & Dupuis, M., Oct 28 2009, In : Journal of the American Chemical Society. 131, 42, p. 15212-15224 13 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Determination of S - H bond strengths in dimolybdenum tetrasulfide complexes

Appel, A. M., Lee, S. J., Franz, J. A., DuBois, D. L., DuBois, M. R. & Twamley, B., Feb 9 2009, In : Organometallics. 28, 3, p. 749-754 6 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)

Free energy landscapes for S-H bonds in Cp* 2Mo 2S 4 complexes

Appel, A. M., Lee, S. J., Franz, J. A., DuBois, D. L. & DuBois, M. R., Apr 15 2009, In : Journal of the American Chemical Society. 131, 14, p. 5224-5232 9 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)
2008

Formation and reactivity of a persistent radical in a dinuclear molybdenum complex

Appel, A. M., Lee, S. J., Franz, J. A., DuBois, D. L., DuBois, M. R., Birnbaum, J. C. & Twamley, B., Jul 16 2008, In : Journal of the American Chemical Society. 130, 28, p. 8940-8951 12 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)
2007
117 Citations (Scopus)
2005

Concentration of carbon dioxide by electrochemically modulated complexation with a binuclear copper complex

Appel, A. M., Newell, R., Dubois, D. L. & Dubois, M. R., May 2 2005, In : Inorganic Chemistry. 44, 9, p. 3046-3056 11 p.

Research output: Contribution to journalArticle

35 Citations (Scopus)

Molybdenum-sulfur dimers as electrocatalysts for the production of hydrogen at low overpotentials

Appel, A. M., DuBois, D. L. & Rakowski DuBois, M., Sep 14 2005, In : Journal of the American Chemical Society. 127, 36, p. 12717-12726 10 p.

Research output: Contribution to journalArticle

152 Citations (Scopus)

Studies of bicarbonate binding by dinuclear and mononuclear Ni(II) complexes

Newell, R., Appel, A., DuBois, D. L. & DuBois, M. R., Jan 24 2005, In : Inorganic Chemistry. 44, 2, p. 365-373 9 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)