Nanoparticles of palladium supported on bacterial biomass: New re-usable heterogeneous catalyst with comparable activity to homogeneous colloidal Pd in the Heck reaction

Bennett, James A.; Mikheenko, Iryna P.; Deplanche, K.; Shannon, Ian J.; Wood, Joseph; Macaskie, Lynne E.

doi:10.1016/j.apcatb.2013.04.022

Cited by 68 publications

(68 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For transmission electron microscopy (TEM) free cells with [25 % (w/w) metal] or without Pd/PM were fixed as above, stained, embedded and sectioned and the sections were placed onto a copper grid and viewed under a JEOL 1200CX2 TEM (Mikheenko et al 2008). Bio-manufactured Pd was confirmed by energy dispersive X-ray microanalysis and confirmed as Pd(0) by X-ray powder diffraction as described previously Bennett et al 2013) by comparison of the obtained XRD pattern with references in the Joint Committee for Powder Diffraction Studies (JCPDS) data base.…”

Section: Examination Of Samples By Electron Microscopymentioning

confidence: 99%

See 1 more Smart Citation

One step bioconversion of waste precious metals into Serratia biofilm-immobilized catalyst for Cr(VI) reduction

et al. 2015

View full text Add to dashboard Cite

show abstract

Section: Examination Of Samples By Electron Microscopymentioning

confidence: 99%

“…Bio-Pd-NP catalysts combine the benefits of homogeneous and heterogeneous catalysis (Creamer et al 2007) with the stabilization of the Pd-NPs against agglomeration and permit their re-use without attrition or loss (Bennett et al 2013). However free bacteria require encapsulation for use within columns.…”

mentioning

confidence: 99%

One step bioconversion of waste precious metals into Serratia biofilm-immobilized catalyst for Cr(VI) reduction

et al. 2015

View full text Add to dashboard Cite

show abstract

“…synthesising NPs [16][17][18][19], recoverable for re-use with minimal loss of activity [11] or for continuous use as biofilm-immobilised catalyst [20]. Taking into account also the need to conserve primary resources and recycle precious metals, by applying this biotechnological approach, effective bionanocatalyst can be sourced from metal-containing wastes [21,22], potentially providing a low-cost route to nanocatalyst production with low environmental impact.…”

Section: Introductionmentioning

confidence: 98%

“…Bio-Pd, comprising individual Pd-NPs held on a micron sized carrier (the bacterial cell) [11] and bio-adhering onto support matrices [20] fulfils these criteria and allows the use of a continuous process [20].…”

Section: Introductionmentioning

confidence: 99%

Selective hydrogenation using palladium bioinorganic catalyst

Zhu

Wood

Deplanche

et al. 2016

Applied Catalysis B: Environmental

View full text Add to dashboard Cite

a b s t r a c tPalladium bioinorganic catalyst (bio-Pd) was manufactured using bacteria (Desulfovibrio desulfuricans and Escherichia coli) via the reduction of Pd(II) to bio-scaffolded Pd(0) nanoparticles (NPs). The formed Pd NPs were examined using electron microscopy and X-ray powder diffraction methods: a loading of 5 wt% Pd showed an average particle size of ∼4 nm. The catalytic activities of the prepared bio-Pd NPs on both bacteria were compared in two hydrogenation reactions with that of a conventionally supported Pd catalyst (Pd/Al 2 O 3 ). Concentration profiles of the different hydrogenation products were fitted using a Langmuir-Hinshelwood expression. In 2-pentyne hydrogenation, 5 wt% Pd E.coli achieved 100% of 2-pentyne conversion in 20 mins and produced 10.1 ± 0.7 × 10 −2 mol L −1 of desired cis-2-pentene; in contrast 5 wt% Pd/Al 2 O 3 yielded 6.5 ± 0.4 × 10 −2 mol L −1 of cis-2-pentene after 40 mins. In the solvent-free hydrogenation of soybean oil, the use of 5 wt% Pd E.coli yielded cis-C18:1 of 1.03 ± 0.04 mol L −1 and trans-C18:1 of 0.26 ± 0.03 mol L −1 (∼50% less of the latter than 5 wt% Pd/Al 2 O 3 ) after 5 h. Similar results were obtained using bio-Pd E.coli and bio-Pd D.desulfuricans . Bio-Pd was concluded to have the advantage of a lower cis-trans isomerisation in hydrogenation of alkyne/alkenes. Hence biomanufacturing is an environmentally attractive, scalable and facile alternative to conventional heterogeneous catalyst for application in industrial hydrogenation processes. D. desulfuricans is inconvenient to grow at scale but wastes of E. coli are produced from various industrial processes. 'Second life' (i.e. recycled from a pilot scale biohydrogen production process) E. coli cells were used to make bio-Pd catalysts. Although 'bio-Pd secondlife gave a slower conversion rate of 2-pentyne and soybean oil compared to bio-Pd from purpose-grown cells it showed a higher selectivity to the cis-isomer product.

show abstract

“…A number of studies have investigated the catalytic activity of bioPd, demonstrating its use in remediative reactions such as the reduction of Cr(VI) to Cr(III) (Beauregard et al 2010;Mabbett et al 2006), the dehalogenation of chlorophenol, polychlorinated biphenyls, polybrominated diphenyl ethers (Baxter-Plant et al 2003;De Windt et al 2005;Harrad et al 2007), trichloroethylene (Hennebel et al 2009a(Hennebel et al , 2009b, and the pesticide g-hexachlorocyclohexane (Mertens et al 2007), in "greener" chemical synthesis such as the hydrogenation of itaconic acid (Creamer et al 2007) and 2-pentyne , in Heck and Suzuki reactions (Bennett et al 2013;Deplanche et al 2014), and also in the application of bioPd as a fuel cell electrocatalyst to produce electricity from hydrogen (Orozco et al 2010;Yong et al 2007). In each case where the bioPd was compared with an abiotically produced palladium catalyst (finely divided or supported on a carbon matrix), the bioPd was more active than or at least as active as the commercially available alternative.…”

Section: Introductionmentioning

confidence: 99%

A Novel Aerobic Mechanism for Reductive Palladium Biomineralization and Recovery byEscherichia coli

Foulkes

Deplanche

Sargent

et al. 2016

Geomicrobiology Journal

View full text Add to dashboard Cite

Aerobically grown E. coli cells reduced Pd(II) via a novel mechanism using formate as the electron donor. This reduction was monitored in real-time using extended X-ray absorption fine structure. Transmission electron microscopy analysis showed that Pd(0) nanoparticles, confirmed by X-ray diffraction, were precipitated outside the cells. The rate of Pd(II) reduction by E. coli mutants deficient in a range of oxidoreductases was measured, suggesting a molybdoprotein-mediated mechanism, distinct from the hydrogenase-mediated Pd(II) reduction previously described for anaerobically grown E. coli cultures. The potential implications for Pd(II) recovery and bioPd catalyst fabrication are discussed.

show abstract

Nanoparticles of palladium supported on bacterial biomass: New re-usable heterogeneous catalyst with comparable activity to homogeneous colloidal Pd in the Heck reaction

Cited by 68 publications

References 39 publications

One step bioconversion of waste precious metals into Serratia biofilm-immobilized catalyst for Cr(VI) reduction

One step bioconversion of waste precious metals into Serratia biofilm-immobilized catalyst for Cr(VI) reduction

Selective hydrogenation using palladium bioinorganic catalyst

A Novel Aerobic Mechanism for Reductive Palladium Biomineralization and Recovery byEscherichia coli

Contact Info

Product

Resources

About