Improvement of catalytic stability for CO 2 reforming of methane by copper promoted Ni-based catalyst derived from layered-double hydroxides

Analysis of CO2 utilization into synthesis gas based on solar thermochemical CH4-reforming

“…Afterwards, the increase in the yield of syngas is followed by higher conversion of CO 2 due to the decomposition of CO 2 at the catalyst surface [36] . Besides, the higher conversion of CO 2 could be ascribed to the simultaneous reverse WGS and Boudouard reaction which may be occurred in the reaction medium [36,49] . It seems that the overall species reactivity and reaction temperature distribution were highly improved in the presence of Ni/Al 2 O 3 catalyst.…”

“…The conversions of CO 2 and CH 4 were enhanced with increasing the Ni content [48] . Thus, the higher reaction extent along the axial direction of the reactor could http://engine.scichina.com/doi/10.1016/j.jechem.2018.01.011 be attributed to the higher dispersion and good reducibility of Ni species [36,50,51] . Moreover, the catalytic activity may rely upon the strong basic site of a catalyst formed in the reacting medium.…”

“…Mahoney et al [35] , Wang et al [18] and Zhang et al [19] have investigated syngas production based on CO 2 -reforming of methane via Pt addition to supporting Ni catalyst, core-shell Ni@SiO 2 catalysts, and Ca-promoted Co/AC catalysts, respectively. Li et al [36] reported that the high dispersed anti-coking copper-promoted nickel catalyst derived from LDHs precursor could be prospective catalyst candidate for the efficient heterogeneous catalysis of sustainable CO 2 conversion. Moreover, a heat and mass transfer model coupled with chemical reaction kinetics has been developed to investigate the effects of structural variables on hydrogen and syngas production during methane reforming.…”

Arsenic removal from water/wastewater using layered double hydroxide derived adsorbents, a critical review

“…are a class of ionic lamellar compound, and are made up of stacked positively charged brucite-like layers, with the interlayer spaces containing charge compensating anions and solvation molecules. [34][35][36][37] Metal cations occupy the centers of octahedra whose vertexes contain hydroxide ions. The octahedra are connected through edge sharing to form an innite sheet.…”

Advances in efficient electrocatalysts based on layered double hydroxides and their derivatives

“…Two-dimensional (2D) nanomaterials afford great opportunities to create advanced electrocatalysts with high performance and stability due to their unique physicochemical properties [105][106][107][108][109] . Layered double hydroxides (LDHs) are a typical family of 2D clay materials, whose structure is based on well-defined intralayer multi-metal cations and interlayer anions [110][111][112][113][114][115][116] . By virtue of their versatility in chemical composition and architectural structure, LDHs materials have been widely explored as efficient electrocatalysts for the energy storage and conversion [117][118][119][120][121][122][123] .…”