@article {48198,
	title = {High-alkaline water-splitting activity of mesoporous 3D heterostructures: an amorphous-shell@crystalline-core nano-assembly of Co-Ni-phosphate ultrathin-nanosheets and V- doped cobalt-nitride nanowires},
	journal = {Advanced Science},
	volume = {9},
	year = {2022},
	month = {AUG},
	pages = {2201311},
	type = {Article},
	abstract = {<p>
	Introducing amorphous and ultrathin nanosheets of transition bimetal phosphate arrays that are highly active in the oxygen evolution reaction (OER) as shells over an electronically modulated crystalline core with low hydrogen absorption energy for an excellent hydrogen evolution reaction (HER) can boost the sluggish kinetics of the OER and HER in alkaline electrolytes. Therefore, in this study, ultrathin and amorphous cobalt-nickel-phosphate (CoNiPOx) nanosheet arrays are deposited over vanadium (V)-doped cobalt-nitride (V-3\%-Co4N) crystalline core nanowires to obtain amorphous-shell@crystalline-core mesoporous 3D-heterostructures (CoNiPOx@V-Co4N/NF) as bifunctional electrocatalysts. The optimized electrocatalyst shows extremely low HER and OER overpotentials of 53 and 270 mV at 10 mA cm(-2), respectively. The CoNiPOx@V-3\%-Co4N/NF (+/-) electrolyzer utilizing the electrocatalyst as both anode and cathode demonstrates remarkable overall water-splitting activity, requiring a cell potential of only 1.52 V at 10 mA cm(-2), 30 mV lower than that of the RuO2/NF (+)/20\%-Pt/C/NF (-) electrolyzer. Such impressive bifunctional activities can be attributed to abundant active sites, adjusted electronic structure, lower charge-transfer resistance, enhanced electrochemically active surface area (ECSA), and surface- and volume-confined electrocatalysis resulting from the synergistic effects of the crystalline V-3\%-Co4N core and amorphous CoNiPOx shells boosting water splitting in alkaline media.</p>
},
	keywords = {core-shell, hydrogen productions, metal nitrides, metal phosphates, synergistic effect, water-splitting},
	doi = {10.1002/advs.202201311},
	author = {Singh, Thangjam Ibomcha and Maibam, Ashakiran and Cha, Dun Chan and Yoo, Sunghoon and BabaRao, Ravichandar and Lee, Sang Uck and Lee, Seunghyun}
}
@article {49565,
	title = {Unravelling the Cu-Co nanoparticle synergy over Ceria-Zirconia support toward efficient reverse water gas shift (RWGS) conversion under H2 lean conditions},
	journal = {Chemical Engineering Journal},
	volume = {508},
	year = {2025},
	month = {MAR},
	pages = {160705},
	type = {Article},
	abstract = {<p>
	CO2 emissions leading to global warming and environmental and socio-economic issues have propelled the research community to develop technologies capable of capturing and converting CO2 into valuable products. Controlling the selectivity toward platform molecules like CO, methanol, or methane is a fundamental challenge in CO2 hydrogenation. Supported cobalt nanoparticles are known for hydrocarbon production through FischerTropsch (FT) reaction, and Cu-based catalysts are known for reverse water gas shift (RWGS) reaction. Here, we show that d-band centre can be carefully modulated by making bimetallic combinations of Cu and Co for a highly active RWGS catalyst. An oxygen vacancy-rich nanostructured ceria-zirconia (CZ) support with Cu nanoparticles (2 wt\%) modified with as low as 0.05 wt\% Co shows excellent conversion for CO2 hydrogenation and selectivity for CO below 500 degrees C. The optimized catalyst shows CO2 conversion even under hydrogen lean conditions (H2/ CO2 ratio 0.5:1), with a breakthrough rate of 206023 mmol/gmetal/h for CO at 600 degrees C, having H2 utilization of 80\% for the RWGS process.</p>
},
	keywords = {Bimetallic catalyst, Ceria-zirconia, CO 2 hydrogenation, Cobalt catalyst, Copper catalyst, Reverse water gas shift (RWGS), synergistic effect},
	issn = {1385-8947},
	doi = {10.1016/j.cej.2025.160705},
	author = {Jagtap, Anuradha Vijay and Bamnia, Mahesh Kumar and Maibam, Ashakiran and Bajpai, Jyotsna Paliwal and Gupta, Sharad and Thomas, Sharon K. and Dabke, Niteen B. and Vinod, C. P.}
}
