1-     Modeling of the active sites of enzymes including carbon monoxide dehydrogenase/ acetyl coenzyme A synthase and zinc enzymes for better understanding of these enzymes and the preparation of effective catalysts for some important chemical processes.

2-     Complexation and removal of metals (such as cadmium, iron, and uranium) from aqueous solutions using different complexing agents.

3-     Preparation of compounds capable of acting as pharmaceutical drugs. This includes the synthesis and study of vanadium complexes that are potential candidates for use as substitutes or as enhancing agents for insulin used by diabetes patients, some 300 million world-wide.

4-     Preparation of chitosan fragments and their use for the treatment of some health problems.

5-     Nitrogen fixation, by which atmospheric nitrogen is converted into ammonia, the basic fertilizer used in agriculture.

1. Armstrong, William H., and Khaleel Abu-Sbeih. "INOR 72-Polynuclear vanadium (II, III) complexes." ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. Vol. 232. 1155 16TH ST, NW, WASHINGTON, DC 20036 USA: AMER CHEMICAL SOC, 2006.‏
2. W. H. Armstrong, Peter J. Bonitatebus, Jr., Khaleel A. Abu-Sbeih, "Multinuclear Vanadium (II,III) Complexes," lecture at V4 symposium, Hungary, 2004. 
3. Khaleel A. Abu-Sbeih, W. H. Armstrong, "Nitrogen fixation using low-valent vanadium complexes," 224^th ACS national meeting, Boston, MA, 18-22 of August 2002.

1-     Participated in numerous committees at Al-Hussein Bin Talal University including those of tenders, promotions, study plans, safety, course description, and appointments of both faculty and employees.

1-     Associate professor “A” at Al-Hussein Bin Talal University 26/1/2021.

2-     Associate professor at Tafila Technical University 4/9/2016-4//9/2017.

3-     Associate professor “B” at Al-Hussein Bin Talal University 5/5/2015.

4-     Assistant professor "A" at Al-Hussein Bin Talal University 18/3/2014.

5-     Assistant professor "B" at Al-Hussein Bin Talal University 11/9/2005.

1-     Head of the chemistry department at Al-Hussein Bin Talal University, 30/9/2019 till now.

1-     Head of the chemistry department at Al-Hussein Bin Talal University, 10/9/2006 -15/9/2007.

Tafila Technical University:

-        Graduate courses: Medicinal inorganic chemistry

-        Undergraduate courses: Biochemistry, chemical process technology, inorganic chemistry 1, general chemistry 101 and 99, general chemistry labs 1 and 2.

Al-Hussein Bin Talal University:

-        Analytical chemistry 1 and lab

-        Environmental chemistry

-        Inorganic chemistry 1, 2, 3, lab, and special topics

-        Biochemistry 1

-        Pharmacology for nursing students

-        Industrial chemistry 1 and 2

-        Descriptive chemistry of the elements

-        Chemical literature

-        Chemistry in our lives

-        Mathematics and sciences for education students

-        General chemistry 99, 101, 102, 105 (for nursing), and labs 1 and 2

Philadelphia University:              

-        General chemistry 1 and 2