Co P@NiCo-LDH heteronanosheet arrays as efficient bifunctional electrocatalysts for co-generation of value-added formate and hydrogen with less-energy consumption

Recent Advances on Electrolysis for Simultaneous Generation of Valuable Chemicals at both Anode and Cathode

“…Valuable chemicals can be obtained from the electro-oxidation of various alcohols, accompanied by H 2 generation at the counter electrode. For example, formate/ formic acid from methanol [48][49][50][51][52] or glycerol, [53,54] acetate [55][56][57][58][59] or ethyl acetate [60] from ethanol, acetone [36] from isopropanol, lactate or pyruvate [11] from 1,2-propanediol, acrylate [61] from 1,3-propandiol, tartronate or mesoxalate [62] from glycerol, etc.…”

“…Besides, nearly 100% Faraday efficiency (FE) was achieved for both H 2 and formate within the current density span of 160 mA cm −2 over bifunctional Co x P@NiCo-LDH/NF electrode. [50] Additionally, as shown in Figure 2a, the in situ synthesized carbon nanofibers@NiSe (CNFs@NiSe) were employed in the integration of H 2 production with methanol upgrading. Compared with the absence of methanol, boosting H 2 generation rate reached 7.5 times.…”

Low full-cell voltage driven high-current-density selective paired formate electrosynthesis

“…Using renewable electricity driven selective electro-oxidation reactions to replace the OER is a promising strategy to enhance the electrical energy utilization, reducing the operating voltage of the electrolyzer as well as producing value-added chemicals instead of O 2 in the anode side. [1][2][3][4][5][6] Recently, thermodynamically easily oxidized species (methanol, [7][8][9] benzyl alcohol, 10 benzyl amine 11 and glycerol 12 ) have been employed for electrochemical oxidation to replace the OER. Specically, the methanol oxidation reaction (MOR) to produce formate has been widely studied due to the abundant sources of methanol and the high value of formate (>$650/ton).…”

Highly active sites of NiVB nanoparticles dispersed onto graphene nanosheets towards efficient and pH-universal overall water splitting

“…Transition metal based oxides, chalcogenides, nitrides, phosphides, sulfides and their hybrids have been vastly studied as electrocatalysts [14,[16][17][18][19][20]. Particularly, Ni based materials and their composites have received great attention owing to their high earth-abundance and acceptable redox capacity, such as NiCoP/C [21], NiCo 2 O 4 [5], Ni-Fe-P [22], Fe 2 O 4 -NiOOH [23], NiCo 2 S 4 @NiFelayered double hydroxide (LDH) [24], Ni 2 P [25], CoNi 2 Se 4 [26], Co-Ni-B [27], NiCo-MOF-74/NF [28], NiV-LDH [11], NiFeV-LDH [29], and NiSe 2 [30].…”