| The chemistry of metal–organic frameworks for CO2 capture, regeneration and conversion CA Trickett, A Helal, BA Al-Maythalony, ZH Yamani, KE Cordova, ... Nature Reviews Materials 2 (8), 1-16, 2017 | 1228 | 2017 |
| Multivariate metal-organic frameworks A Helal, ZH Yamani, KE Cordova, OM Yaghi National Science Review 4 (3), 296-298, 2017 | 152 | 2017 |
| Chromogenic and fluorogenic sensing of Cu2+ based on coumarin A Helal, MHO Rashid, CH Choi, HS Kim Tetrahedron 67 (15), 2794-2802, 2011 | 148 | 2011 |
| Metal–organic framework-guided growth of Mo 2 C embedded in mesoporous carbon as a high-performance and stable electrocatalyst for the hydrogen evolution reaction M Qamar, A Adam, B Merzougui, A Helal, O Abdulhamid, MN Siddiqui Journal of materials chemistry A 4 (41), 16225-16232, 2016 | 106 | 2016 |
| Thiazole-based chemosensor: synthesis and ratiometric fluorescence sensing of zinc A Helal, HS Kim Tetrahedron Letters 50 (39), 5510-5515, 2009 | 95 | 2009 |
| A fluorescent chemosensor for sequential recognition of gallium and hydrogen sulfate ions based on a new phenylthiazole derivative BY Kim, HS Kim, A Helal Sensors and Actuators B: Chemical 206, 430-434, 2015 | 74 | 2015 |
| Electrochemical Reduction of CO2: A Review of Cobalt Based Catalysts for Carbon Dioxide Conversion to Fuels M Usman, M Humayun, MD Garba, L Ullah, Z Zeb, A Helal, MH Suliman, ... Nanomaterials 11 (8), 2029, 2021 | 70 | 2021 |
| Prospects for a green methanol thermo-catalytic process from CO2 by using MOFs based materials: A mini-review IU Din, M Usman, S Khan, A Helal, MA Alotaibi, AI Alharthi, G Centi Journal of CO2 Utilization 43, 101361, 2021 | 67 | 2021 |
| Fluorescence sensor for sequential detection of zinc and phosphate ions M An, BY Kim, H Seo, A Helal, HS Kim Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 169, 87-94, 2016 | 64 | 2016 |
| New regioisomeric naphthol-substituted thiazole based ratiometric fluorescence sensor for Zn2+ with a remarkable red shift in emission spectra A Helal, MHO Rashid, CH Choi, HS Kim Tetrahedron 68 (2), 647-653, 2012 | 64 | 2012 |
| Dual-signaling fluorescent chemosensor based on bisthiazole derivatives A Helal, SH Lee, SH Kim, HS Kim Tetrahedron Letters 51 (27), 3531-3535, 2010 | 63 | 2010 |
| Fluorescent probe for sequential recognition of Ga3+ and pyrophosphate anions C Lim, M An, H Seo, JH Huh, A Pandith, A Helal, HS Kim Sensors and Actuators B: Chemical 241, 789-799, 2017 | 57 | 2017 |
| Trends and Prospects in UiO66 MetalOrganic Framework for CO2 Capture, Separation, and Conversion M Usman, A Helal, MM Abdelnaby, AM Alloush, M Zeama, ZH Yamani The Chemical Record 21 (7), 1771-1791, 2021 | 56 | 2021 |
| Thiazole-based chemosensor II: synthesis and fluorescence sensing of fluoride ions based on inhibition of ESIPT A Helal, NTT Thao, SW Lee, HS Kim Journal of Inclusion Phenomena and Macrocyclic Chemistry 66, 87-94, 2010 | 56 | 2010 |
| Facile hydrogenation of N-heteroarenes by magnetic nanoparticle-supported sub-nanometric Rh catalysts in aqueous medium MN Shaikh, MA Aziz, AN Kalanthoden, A Helal, AS Hakeem, ... Catalysis Science & Technology 8 (18), 4709-4717, 2018 | 52 | 2018 |
| Advanced Strategies in MetalOrganic Frameworks for CO2 Capture and Separation M Usman, N Iqbal, T Noor, N Zaman, A Asghar, MM Abdelnaby, ... The Chemical Record 22 (7), e202100230, 2022 | 51 | 2022 |
| Highly selective fluorescent probe for sequential recognition of copper (II) and iodide ions H Seo, M An, BY Kim, JH Choi, A Helal, HS Kim Tetrahedron 73 (31), 4684-4691, 2017 | 50 | 2017 |
| Thiazole sulfonamide based ratiometric fluorescent chemosensor with a large spectral shift for zinc sensing A Helal, SH Kim, HS Kim Tetrahedron 66 (52), 9925-9932, 2010 | 50 | 2010 |
| Highly selective fluorescent probe for switch-on Al3+ detection and switch-off F− detection C Lim, H Seo, JH Choi, KS Kim, A Helal, HS Kim Journal of Photochemistry and Photobiology A: Chemistry 356, 312-320, 2018 | 49 | 2018 |
| Allyl functionalized UiO-66 metal-organic framework as a catalyst for the synthesis of cyclic carbonates by CO2 cycloaddition A Helal, M Usman, ME Arafat, MM Abdelnaby Journal of Industrial and Engineering Chemistry 89, 104-110, 2020 | 47 | 2020 |
