Migration and control of mercury in hazardous chemical waste incineration

Improved electrochemical performance of the FeOx(OH)/IF electrode via in situ surface modification with organic naphthoquinone molecules

“…Significantly, the as-assembled Ni-Fe device in the present work shows the highest energy density of 235.2 W h kg À1 (19.6 W h cm À3 ) at a power density of 540.7 W kg À1 (45 W cm À3 ) and still retains a high power density of 5.4 kW kg À1 (450 W cm À3 ) at an ultrahigh energy density of 82 W h kg À1 (6.8 W h cm À3 ). The values are comparative to those of the previously reported aqueous energy storage devices, 55,56 such as GF/CNTs/Ni(OH) 2 //GF/ CNTs/-Fe 2 O 3 , 57 p-MG//p-FG, 58 NiCo 2 O 4 /NiO//Fe 2 O 3 , 59 NiNTAS@ Fe 2 O 3 //NiNTAS@MnO 2 , 60 MoO 3 @CNT//MnO 2 @CNT, 61 Ni 0.1 Co 0.9 -Se 2 @NF//rGO@NF 62 and are even comparable to some of the aqueous Ni-Fe batteries (see Table S2, ESI †), such as Ni(OH) 2 MSs@NF//Fe 2 O 3 @GH battery (203 W h kg À1 at 0.798 kW kg À1 ), 47 NiO@C//Fe@C (138 W h kg À1 at 0.61 kW kg À1 ), 63 Ni-Co DH/OG// Fe 3 O 4 /FeOOH/OG (161.3 W h kg À1 at 5.7 kW kg À1 ), 64 and Ni@CMFs//Fe@CMFs (116 W h kg À1 at 5.76 kW kg À1 ). 65 The device also shows a good cycling stability of 81.2% (Fig.…”

Preparation of nanocellulose-based nitrogen-doped carbon aerogel electrocatalysts through hydrothermal pretreatment for zinc–air batteries

“…[18][19][20][21][22][23] However, their electrochemical performances and commercial applications are impeded by the sluggish kinetics of the ORR/OER at the cathode. [24][25][26][27][28] To address the above issues, many new electrocatalysts have been developed, in which noble metal catalysts reveal excellent catalytic activity but are limited by their scarcity and high cost. 29,30 The natural advantages that CNF-based carbon aerogels possess give them great potential as cathode catalysts for ZABs.…”

Sn-induced electronic structure engineering of NiFe LDH for stable and efficient oxygen evolution reaction and urea oxidation reaction

“…Therefore, researchers are working to develop environmentally friendly, non-toxic and inexpensive materials in an attempt to reduce the energy and cost of water splitting. [9][10][11][12][13][14][15][16][17] Through the efforts of researchers, a large number of inexpensive electrodes have been developed, for instance transition metal oxides, [18][19][20][21][22][23][24][25][26][27][28] sulfides, [29][30][31][32][33][34][35][36][37][38][39] phosphide, [40][41][42][43][44][45][46][47][48][49][50][51] selenides, [52][53][54][55][56][57]…”