Tungsten-induced synthesis of defective palladium–copper–tungsten trimetallic nanochains to highly enhance activity for formic acid electrooxidation

Zhang, Lian Ying; Meng, Xiangcai; Wu, Hao; Wang, F.; Huang, Haowei; Ouyang, Yirui; Yuan, Weiyong; Guo, Chunxian; Li, C.M.

doi:10.1016/j.mtener.2020.100558

Cited by 9 publications

(4 citation statements)

References 63 publications

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“…In order to explore the effect of the atomic ratio on the catalyst performance, we tested the catalytic performance of different Pd/Co catalysts for the FAOR ( Figure 4 b). In the forward scan, the anodic peak was assigned to the formic acid oxidation, and another anodic peak in the reverse scan was associated with the oxidation of the intermediate carbonaceous species formed during the forward scan [ 57 , 58 ]. For Pd 3 Co 1 /CNTs, the peak current density in the forward scan is 2410.1 mA mg Pd −1 , higher than Pd 1 Co 1 /CNTs (1752.3 mA mg Pd −1 ), Pd 1 Co 3 /CNTs (1255.1 mA mg Pd −1 ), Pd/CNTs (1262.8 mA mg Pd −1 ) and Pd/C (819.2 mA mg Pd −1 ) ( Figure 4 b,c).…”

Section: Resultsmentioning

confidence: 99%

Pd3Co1 Alloy Nanocluster on the MWCNT Catalyst for Efficient Formic Acid Electro-Oxidation

et al. 2022

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In this study, the Pd3Co1 alloy nanocluster from a multiwalled carbon nanotube (MWCTN) catalyst was fabricated in deep eutectic solvents (DESs) (referred to Pd3Co1/CNTs). The catalyst shows a better mass activity towards the formic acid oxidation reaction (FAOR) (2410.1 mA mgPd−1), a better anti-CO toxicity (0.36 V) than Pd/CNTs and commercial Pd/C. The improved performance of Pd3Co1/CNTs is attributed to appropriate Co doping, which changed the electronic state around the Pd atom, lowered the d-band of Pd, formed a new Pd-Co bond act at the active sites, affected the adsorption of the toxic intermediates and weakened the dissolution of Pd; moreover, with the assistance of DES, the obtained ultrafine Pd3Co1 nanoalloy exposes more active sites to enhance the dehydrogenation process of the FAOR. The study shows a new way to construct a high-performance Pd-alloy catalyst for the direct formic acid fuel cell.

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Section: Resultsmentioning

confidence: 99%

Pd3Co1 Alloy Nanocluster on the MWCNT Catalyst for Efficient Formic Acid Electro-Oxidation

et al. 2022

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“…19 A suitable solution for the consistent performance of the membrane for longer lifetime requires alloying Pd with other metals to eliminate or minimize the drawbacks witnessed using pure Pd membranes. 14 For this reason, Pd can be alloyed with other metals such as copper, 20 gold, 21 nickel, 22 silver, 23 titanium, 24 platinum, 25 tungsten, 26 indium, 27 rhenium, 28 yttrium, 29 cerium, 30 molybdenum, 31 ruthenium, 32 rhodium, 33 etc. When Pd is alloyed with these metals, its critical temperature for formation of Pd hydride is reduced.…”

Section: General Properties Of Palladium and Its Alloysmentioning

confidence: 99%

Palladium-Alloy Membrane Reactors for Fuel Reforming and Hydrogen Production: A Review

et al. 2021

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Hydrogen has a potential to be a clean energy carrier that emits only water after combustion and can be produced from diverse feedstocks. Hydrogen has much better combustion characteristics in conventional combustion systems and higher energy efficiency when used with fuel cells. More than 75 million tons of hydrogen are currently produced primarily using fossil fuels as feedstock via steam methane reforming processes. Steam methane reforming is the mature technology for producing hydrogen and when coupled with CO2 capture can help address climate challenges. Inorganic palladium (Pd) membranes have demonstrated great potential to separate hydrogen due to their stability and high selectivity for hydrogen. In this review, several methods of fabricating Pd-alloy membranes are discussed and compared in terms of membrane stability and selectivity of hydrogen. Such methods include electroless plating (ELP), chemical vapor deposition (CVD), physical vapor deposition (PVD), and electroplating deposition (EPD). The permeability of hydrogen in different Pd-based alloy membranes are presented and compared. Focus has been made, in this review, on Pd–Ag, Pd–Cu, Pd–Au, and Pd–Ru alloys. The effects of impurities (H2S, CO, O2, and CO2) on performance of different Pd-based alloy membranes are also investigated. Moreover, the subject of using Pd-membrane reactors for fuel reforming and H2 production is investigated in detail based on numerous experimental and numerical studies in the literature, considering different membrane reactor designs: axial-flow tubular, radial-flow tubular, axial-flow spherical, packed-bed, fluidized bed, and slurry bubble column. The performance of Pd-membranes in such reactors for hydrogen production is compared, and the effects of temperature, pressure, H2O/CH4 ratio, and residence time on reformer performance are also investigated. Finally, the use of computational methods, particularly, density functional theory (DFT), to complement well-established experimental methods for studying the diffusion of H and its isotopes in different metals is reviewed. The review concludes with some insights into future work to bring Pd-membrane reactors to the level required for hydrogen production at the commercial level.

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“…Various Pd‐based electrocatalysts, such as Cu, [25–42] Cd, [43–45] Ni, [46–53] Au, [54–58] Cr, [59] Co, [60–65] Zn, [66] Fe, [67–72] Ag ,[73–76] Sn, [77–84] Ru, [85–89] Pb, [90–92] Bi, [93–97] Fe, [98–101] Pt, [102–105] and P [106] have been studied so far. Second‐element doping can improve not only the FAOR activity of Pd through electronic and structural effects but also the catalytic durability due to changes in surface physicochemical properties [107–109] …”

Section: Introductionmentioning

confidence: 99%

“…Various Pd-based electrocatalysts, such as Cu, [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42] Cd, [43][44][45] Ni, [46][47][48][49][50][51][52][53] Au, [54][55][56][57][58] Cr, [59] Co, [60][61][62][63][64][65] Zn, [66] Fe, [67][68][69][70][71][72] Ag , [73][74][75][76] Sn,…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Oxidation of Formic Acid on PdM (M=Cr, Mn, Fe, Co, Ni, and Ag) Alloy Nanoparticles with Low M Content: A Comparative Study

Gharib,

Arab

2023

ChemistrySelect

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PdM (M=Cr, Mn, Fe, Co, Ni, and Ag) alloy nanoparticles with low M content were prepared using a chemical method and characterized by field emission scanning electron microscopy (FE‐SEM), energy dispersive X‐ray (EDX), EDX mapping, X‐ray diffraction (XRD), and transmission electron microscopy (TEM) analyses. The electro‐oxidation of formic acid on these samples was investigated by linear sweep voltammetry, cyclic voltammetry, and chronoamperometry in H2SO4 solution. The PdAg electrocatalyst demonstrated superior electrocatalytic activity toward the oxidation of formic acid with the mass activity of 1980 mA mg−1Pd which was significantly higher than the mass activity of commercial Pd/C electrocatalysts. Additionally, the PdAg electrocatalyst had the best CO poisoning tolerance as well as the best stability in the considered solution.

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Tungsten-induced synthesis of defective palladium–copper–tungsten trimetallic nanochains to highly enhance activity for formic acid electrooxidation

Cited by 9 publications

References 63 publications

Pd3Co1 Alloy Nanocluster on the MWCNT Catalyst for Efficient Formic Acid Electro-Oxidation

Pd3Co1 Alloy Nanocluster on the MWCNT Catalyst for Efficient Formic Acid Electro-Oxidation

Palladium-Alloy Membrane Reactors for Fuel Reforming and Hydrogen Production: A Review

Electrochemical Oxidation of Formic Acid on PdM (M=Cr, Mn, Fe, Co, Ni, and Ag) Alloy Nanoparticles with Low M Content: A Comparative Study

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