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70. Hsu S-F, Rommel S, Eversfield P, Muller K, Klemm E, Thiel WR, Plietker BA (2014)
Rechargeable hydrogen battery based on Ru catalysis. Angew Chem 53:7074–7078
71. Moret S, Dyson PJ, Laurenczy G (2014) Direct synthesis of formic acid from carbon dioxide
by hydrogenation in acidic media. Nat Commun 5:5017
72. Barelli L, Bidini G, Gallorini F, Servili S (2008) Hydrogen production through
sorption-enhanced steam methane reforming and membrane technology: a review. Energy
33:554–570
73. Fihri A, Artero V, Razavet M, Baffert C, Leibl W, Fontecave M (2008) Cobaloxime-based
photocatalytic devices for hydrogen production. Angew Chem 47:564–567
74. Gloaguen F, Rauchfuss TB (2009) Small molecule mimics of hydrogenases: hydrides and
redox. Chem Soc Rev 38:100–108
75. Losse S, Vos JG, Rau S (2010) Catalytic hydrogen production at cobalt centres. Coord
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76. Artero V, Chavarot-Kerlidou M, Fontecave M (2011) Splitting water with cobalt. Angew
Chem 50:7238–7266
77. Kilgore UJ, Roberts JAS, Pool DH, Appel AM, Stewart MP, DuBois MR, Dougherty WG,
Kassel WS, Bullock RM, DuBois DL (2011) [Ni(PPh2NC6H4X2)2]2 + complexes as
electrocatalysts for H 2 production: effect of substituents, acids, and water on catalytic rates.
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78. Du P, Eisenberg R (2012) Catalysts made of earth-abundant elements (Co, Ni, Fe) for water
splitting: recent progress and future challenges. Energy Environ Sci 5:6012–6021
79. Tran PD, Barber J (2012) Proton reduction to hydrogen in biological and chemical systems.
Phys Chem Chem Phys 14:13772–13784
80. Wang M, Chen L, Sun LC (2012) Recent progress in electrochemical hydrogen production
with earth-abundant metal complexes as catalysts. Energy Environ Sci 5:6763–6778
81. Chen WF, Iyer S, Sasaki K, Wang CH, Zhu YM, Muckerman JT, Fujita E (2013)
Biomass-derived electrocatalytic composites for hydrogen evolution. Energy Environ Sci
6:1818–1826
82. Eckenhoff WT, McNamara WR, Du PW, Eisenberg R (2013) Cobalt complexes as artificial
hydrogenases for the reductive side of water splitting. Biochim Biophys Acta—Bioenerg
1827:958–973
83. Thoi VS, Sun YJ, Long JR, Chang CJ (2013) Complexes of earth-abundant metals for
catalytic electrochemical hydrogen generation under aqueous conditions. Chem Soc Rev
42:2388–2400
84. Faber MS, Jin S (2014) Earth-abundant inorganic electrocatalysts and their nanostructures
for energy conversion applications. Energy Environ Sci 7:3519–3542
85. Liu YM, Yu HT, Quan X, Chen S, Zhao HM, Zhang YB (2014) Efficient and durable
hydrogen evolution electrocatalyst based on nonmetallic nitrogen doped hexagonal carbon.
Sci Rep 4:6843
86. McKone JR, Marinescu SC, Brunschwig BS, Winkler JR, Gray HB (2014) Earth-abundant
hydrogen evolution electrocatalysts. Chem Sci 5:865–878
87. Pan LF, Li YH, Yang S, Liu PF, Yu MQ, Yang HG (2014) Molybdenum carbide stabilized
on graphene with high electrocatalytic activity for hydrogen evolution reaction. Chem
Commun 50:13135–13137
88. Xiao P, Sk MA, Thia L, Ge XM, Lim RJ, Wang JY, Lim KH, Wang X (2014) Molybdenum
phosphide as an efficient electrocatalyst for the hydrogen evolution reaction. Energy Environ
Sci 7:2624–2629
89. Clough AJ, Yoo JW, Mecklenburg MH, Marinescu SC (2015) Two-dimensional
metal-organic surfaces for efficient hydrogen evolution from water. J Am Chem Soc
137:118–121
70
L. B. Maia et al.
reversible hydrogenation of carbon dioxide to formates using a ruthenium PNP-Pincer
catalyst. ChemCatChem 6:1526–1530
70. Hsu S-F, Rommel S, Eversfield P, Muller K, Klemm E, Thiel WR, Plietker BA (2014)
Rechargeable hydrogen battery based on Ru catalysis. Angew Chem 53:7074–7078
71. Moret S, Dyson PJ, Laurenczy G (2014) Direct synthesis of formic acid from carbon dioxide
by hydrogenation in acidic media. Nat Commun 5:5017
72. Barelli L, Bidini G, Gallorini F, Servili S (2008) Hydrogen production through
sorption-enhanced steam methane reforming and membrane technology: a review. Energy
33:554–570
73. Fihri A, Artero V, Razavet M, Baffert C, Leibl W, Fontecave M (2008) Cobaloxime-based
photocatalytic devices for hydrogen production. Angew Chem 47:564–567
74. Gloaguen F, Rauchfuss TB (2009) Small molecule mimics of hydrogenases: hydrides and
redox. Chem Soc Rev 38:100–108
75. Losse S, Vos JG, Rau S (2010) Catalytic hydrogen production at cobalt centres. Coord
Chem Rev 254:2492–2504
76. Artero V, Chavarot-Kerlidou M, Fontecave M (2011) Splitting water with cobalt. Angew
Chem 50:7238–7266
77. Kilgore UJ, Roberts JAS, Pool DH, Appel AM, Stewart MP, DuBois MR, Dougherty WG,
Kassel WS, Bullock RM, DuBois DL (2011) [Ni(PPh2NC6H4X2)2]2 + complexes as
electrocatalysts for H 2 production: effect of substituents, acids, and water on catalytic rates.
J Am Chem Soc 133:5861–5872
78. Du P, Eisenberg R (2012) Catalysts made of earth-abundant elements (Co, Ni, Fe) for water
splitting: recent progress and future challenges. Energy Environ Sci 5:6012–6021
79. Tran PD, Barber J (2012) Proton reduction to hydrogen in biological and chemical systems.
Phys Chem Chem Phys 14:13772–13784
80. Wang M, Chen L, Sun LC (2012) Recent progress in electrochemical hydrogen production
with earth-abundant metal complexes as catalysts. Energy Environ Sci 5:6763–6778
81. Chen WF, Iyer S, Sasaki K, Wang CH, Zhu YM, Muckerman JT, Fujita E (2013)
Biomass-derived electrocatalytic composites for hydrogen evolution. Energy Environ Sci
6:1818–1826
82. Eckenhoff WT, McNamara WR, Du PW, Eisenberg R (2013) Cobalt complexes as artificial
hydrogenases for the reductive side of water splitting. Biochim Biophys Acta—Bioenerg
1827:958–973
83. Thoi VS, Sun YJ, Long JR, Chang CJ (2013) Complexes of earth-abundant metals for
catalytic electrochemical hydrogen generation under aqueous conditions. Chem Soc Rev
42:2388–2400
84. Faber MS, Jin S (2014) Earth-abundant inorganic electrocatalysts and their nanostructures
for energy conversion applications. Energy Environ Sci 7:3519–3542
85. Liu YM, Yu HT, Quan X, Chen S, Zhao HM, Zhang YB (2014) Efficient and durable
hydrogen evolution electrocatalyst based on nonmetallic nitrogen doped hexagonal carbon.
Sci Rep 4:6843
86. McKone JR, Marinescu SC, Brunschwig BS, Winkler JR, Gray HB (2014) Earth-abundant
hydrogen evolution electrocatalysts. Chem Sci 5:865–878
87. Pan LF, Li YH, Yang S, Liu PF, Yu MQ, Yang HG (2014) Molybdenum carbide stabilized
on graphene with high electrocatalytic activity for hydrogen evolution reaction. Chem
Commun 50:13135–13137
88. Xiao P, Sk MA, Thia L, Ge XM, Lim RJ, Wang JY, Lim KH, Wang X (2014) Molybdenum
phosphide as an efficient electrocatalyst for the hydrogen evolution reaction. Energy Environ
Sci 7:2624–2629
89. Clough AJ, Yoo JW, Mecklenburg MH, Marinescu SC (2015) Two-dimensional
metal-organic surfaces for efficient hydrogen evolution from water. J Am Chem Soc
137:118–121
70
L. B. Maia et al.