Polymer-based spherical activated carbon as catalytic support for hydrodechlorination reactions

Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions

“…The catalytic activity, in terms of specific activity and TOF (Table 4) were very close for NdC/SBA-Pt and C/SBA-Pt at 30 and 50 ºC, with slightly higher activity for C/SBA-Pt. catalysts and a relevant contribution of adsorption to the overall HDC process rate [21,37,38] during hydrodechlorination reactions. In other hydrogenation reactions catalyzed with Pt NPs, the apparent activation energy decreased to values of 1218 kJ•mol -1 as a consequence of the optimization of the catalyst activity, which may be related to a change in the control regime, even though no mass transfer limitations were observed [39,40].…”

H2-Based Membrane Catalyst-Film Reactor (H2-MCfR) Loaded with Palladium for Removing Oxidized Contaminants in Water

“…1 Furthermore, the deficiencies of H 2 bubbling are exacerbated when the target contaminants are volatile organic compounds, which can be off-gassed during bubbling. The second obstacle is the cost of stabilizing the catalyst by commonly used methods, which require energy-consuming or environmentally risky steps, including high-temperature calcination, 11 organic solvents, 12 and/or additional cost for stabilizers such as poly (N-vinylpyrrolidone) (PVP) 13 or hydrogel, 14 etc. The third obstacle is low catalyst longevity.…”

Ultrasonic-enhanced nascent H<sub>2</sub> activation on Raney Ni for the degradation of triclosan

“…催化加氢脱卤是实现水体中卤代有机物降毒去稳 的有效方法 [10,11] , 其作用机理为: 吸附在催化剂上的氢 分子和卤代物生成的活性物种有效降低了氢化脱卤反 应的活化能, 使脱卤反应沿着一条能量较低的途径发 生 [12,13] . 以钯为代表的贵金属催化剂因与氢气和卤素 具有良好的亲和力而受到广泛关注 [14,15] .…”