Dessie Tafere

Mr. Dessie Tafere

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
19 February 2025 in RSC Advances
Verified
Journal Article
Open access
PDF file
DTDessie Tafere
Dessie Tafere
Mamo Gebrezgiabher BeyeneMamo Gebrezgiabher Beyene
Mamo Gebrezgiabher Beyene
FEFikre Elemo
Fikre Elemo
TSTaju Sani
Taju Sani
TATsegaye Belege Atisme
Tsegaye Belege Atisme
IAIbrahim Nasser Ahmed
Ibrahim Nasser Ahmed
Hydrazone-based compounds distinguished by their azomethine –NHNCH group and their respective coinage metal complexes have emerged as leading candidates in the search for effective anticancer and antibiotic agents.

1 January 2023 in Journal of Chemistry
Verified
Journal Article
Open access
PDF file
DTDessie Tafere
Dessie Tafere
MTMinbale Admas Teshager
Minbale Admas Teshager
Background. Edible wild fruits are natures gift to mankind. Considering the growing need to identify alternative bio-nutritional sources, some underutilized species of Ficus sycomorus L. of the family Moraceae were evaluated as wild edible fruits to study its nutritive and mineral composition in order to prioritize its edibility for people. Methods. The concentration of macro (K, Ca, and Mg) and micro essential elements (Fe, Mn, Zn, and Cu) metals in sycamore fruit and seed samples was determined by using a flame atomic absorption spectrophotometer (F AAS). The wet digestion procedure was evaluated using the standard addition (spiking) method, and an acceptable percentage recovery was obtained in the range of 81119 and 80118 for the metals in fruit and seed samples, respectively. 0.5g of oven-dried samples was digested using 10mL of conc. HNO3 and 5mL of H2O2 at 110°C for 1hour. Results. Significant amounts of both the major and trace elements were found in both the fruit and seed samples. The highest levels of macro essential metals, such as Mg (400±10), K (133±3.291), and Ca (33±0.404) all in mg·kg−1, and micro essential elements, such as Fe (5.7±0.5), Zn (2.3±0.55), and Cu (3.6±0.15) all in mg·kg−1, were found in fruit of Ficus sycomorus L., but the concentration of essential metals in seed sample was Mg (333±5.7), K (122±1.6), Ca (31±0.77), Fe (4.19±0.87), Zn (2.06±0.42), and Cu (3.38±0.15) all in mg·kg−1. Mn (3.04±0.16mg·kg−1) was found in equal amount in both the seed and fruit of F. sycomorus L. Conclusion. In general, the concentration of macro and micro essential metals in F. sycomorus fruits was found; Mg>K>Ca and Fe>Cu>Zn, respectively. Similarly, the concentration of macro and micro essential metals in Ficus sycomorus seeds was found; Mg>K>Ca and Fe>Cu>Zn, respectively. The results were compared with values reported in the literature.

23 June 2025 in RSC Advances
Verified
Journal Article
Open access
KGKidane Goitom Gerezgiher
Kidane Goitom Gerezgiher
DTDessie Tafere
Dessie Tafere
TTTesfay Gebremikael Teklehaimanot
Tesfay Gebremikael Teklehaimanot
Ashenafi Belihu TadesseAshenafi Belihu Tadesse
Ashenafi Belihu Tadesse
ADAyalew Manahilie Dinkirie
Ayalew Manahilie Dinkirie
HZHagos Woldeghebriel Zeweldi
Hagos Woldeghebriel Zeweldi
In this work, the electronic and structural properties of Cu m −1 In m Te 2 m −2 neutral and anion clusters are studied.

26 May 2022 in Research Square
Verified
Preprint
Open access
PDF file
DTDessie Tafere
Dessie Tafere
MTMinbale Admas Teshager
Minbale Admas Teshager
Background Edible wild fruits are nature’s gift to mankind. Considering the growing need to identify alternative bio-nutritional sources, some underutilized species of Ficus sycomorus L. of the family Moraceae were evaluated as wild edible fruits to study its nutritive and mineral composition in order to prioritize its edibility for indigenous people. Methods The concentration of macro (K, Ca and Mg) and trace (Fe, Mn, Zn and Cu) metals in sycamore fruit and seed samples was determined by using flame atomic absorption spectrophotometer (FAAS). Wet digestion procedure was evaluated using standard addition (spiking) method and an acceptable percentage recovery was obtained in the range of 81–119 and 80–118 for the metals in fruit and seed samples respectively. 0.5 g of oven dried samples was digested using 10 mL of conc. HNO3 and 5mL of H2O2 at 110°C for 1hours. Results Significant amounts of both the major and trace elements were found in both the fruit and seed samples. The highest levels of macro essential metals such as Mg (400 ± 10), K (133 ± 3.291), and Ca (33 ± 0.404) all in mg/kg; and micro essential elements: Fe (5.7 ± 0.5), Zn (2.3 ± 0.55) and Cu (3.6 ± 0.15), all in mg/kg, were found in fruit of Ficus sycomorus L., but the concentration of essential metals in seed sample was Mg (333 ± 5.7), K (122 ± 1.6), Ca (31 ± 0.77), Fe (4.19 ± 0.87), Zn (2.06 ± 0.42) and Cu (3.38 ± 0.15) all in mg/kg. Mn (3.04 ± 0.16 mg/kg) was found in equal amount in both the seed and fruit of F. sycomorus L. Conclusion In general, the concentration of macro and micro essential metals in F. sycomorus fruits were found; Mg > K > Ca and Fe > Cu > Zn respectively. Similarly, the concentration of macro and micro essential metals in Ficus sycomorus seeds were found; Mg > K > Ca and Fe > Cu > Zn respectively. The results were compared with values reported in the literature.

13 October 2026 in SSRN Electronic Journal
Verified
Preprint
Open access
MGMengyao Gao
Mengyao Gao
DTDessie Tafere
Dessie Tafere
JCJing-Xian Chen
Jing-Xian Chen
Direct upcycling of spent lithium iron phosphate (sLFP) into electrocatalysts offers a route to reuse battery-derived materials, but limited electronic conductivity constrains their application in the alkaline hydrogen evolution reaction (HER). Here, sLFP particles were integrated with graphene on nickel foam (NF) through a solution-based electrode fabrication process without deliberate bulk-phase reconstruction. X-ray diffraction and Raman spectroscopy showed retention of the detectable olivine framework, while electron microscopy revealed close contact between sLFP particles and graphene sheets. Changes in the fitted Fe 2p binding energies were consistent with modification of the local Fe electronic environment following graphene incorporation and HER operation. In 1.0 M KOH, the optimized G-75 electrode achieved an overpotential of 235.3 mV at 10 mA cm-2 and a Tafel slope of 125.8 mV dec-1, compared with overpotentials of 293.6, 411.2, and 324.2 mV at 10 mA cm-2 for graphene-only/NF, sLFP-only/NF, and bare NF, respectively. Its charge-transfer resistance of 73.6 Ω was approximately 30% lower than that of graphene-only/NF and 60% lower than that of sLFP-only/NF. The electrode sustained electrochemical operation for 96 h, while post-HER characterization performed after up to 24 h showed retention of the detectable olivine phase and hybrid morphology. These results support graphene-assisted improvement of charge-transfer characteristics and demonstrate the direct reuse of spent LiFePO4 in a composite alkaline HER electrode.