A facile synthesis of a NiMoO₄@metal-coated graphene-ink nanosheet structure towards the high energy density of a battery type-hybrid supercapacitor

Abstract

<p>Recently, reagent-based electrode materials have received great attention in various applications (<italic>e.g.</italic>, supercapacitors, solar cells, fuel cells, and batteries).</p>

Recent developments and future perspectives on energy storage and conversion applications of nickel molybdates

“…Hydrothermal synthesis covers the largest share of exertions witnessed for the preparation and modulation of properties of NiMoO 4 28,32,54,63,65,69,74,75,77,78,123,161,165,166,168,170‐173,179,183,184,187,192‐194,198,200,202,206,210‐212,214,215,229,231‐234,256,258‐263,265‐268,270,271,273,275,279‐281,284,286‐288,290,291,294‐298,301,303,305‐313,315‐319,322,324,327‐331,333‐335,337,339‐347,349,352,353,356,358‐360,363‐366,368,370‐374,376‐380 . Typically, it includes a host of strategies towards crystallizing substances from high‐temperature watery mixtures at high vapor pressures.…”

“…This is so because this strategy offers the most convenient processes and yet conducive outcomes. Table 6 is to impart a brief account of a host of developments in catalytic properties of NiMoO 4 done involving heterostructures and hybrids 121,123,256‐382 . in many cases, doping, defect and/or morphology engineering have been amalgamated with the heterostructure for superior enhancement in catalytic properties either to generate more surface area or more population of active sites or for other special necessities as summarized in Table 6.…”

“…Like in the case of supercapacitors, a range of CNMs have been witnessed to upgrade electrochemical catalytic properties of NiMoO 4 while heterostructure is fabricated. Table 13 briefs a few such interesting findings focusing on applications of NiMoO 4 in the battery 169,262,276,280,299,302,309,315,316,342,349,356,359,364 . Graphene being an excellent conductor is a suitable choice for enhancement in performance while coupled with NiMoO 4 .…”

“…Table 13 briefs a few such interesting findings focusing 202,226,256,259,266,270,277,280,285,287,290,297,310,316,320,326,330,337,344,347,348,356,363,372,374,380,381,390 Material/condition on applications of NiMoO 4 in the battery. 169,262,276,280,299,302,309,315,316,342,349,356,359,364 Graphene being an excellent conductor is a suitable choice for enhancement in performance while coupled with NiMoO 4 . However, poor oxidation resistance at high temperature is a matter of worry.…”

“…418 Even though expensive metal oxides, for example, iridium and ruthenium oxides, exhibit the finest OER happenings, their scarceness and huge costs forbid climbable usage. 419 Binary transition metal oxides are interesting low-cost T A B L E 1 3 Performance comparison of batteries involving NiMoO 4 -carbon based composite 169,262,276,280,299,302,309,315,316,342,349,356,359,364 alternatives towards achieving such goals. 420 As discussed earlier, a number of NiMoO 4 based heterostructure has been fabricated and studied for efficiency in OER.…”